Specialty Fiber

Photonics Crystal Fiber (PCF)

PCF, also known as holey fiber or microstructured fiber, normally consists of a regular pattern of air holes or doped materials　inside pure silica background along the transverse direction. According to the mechanism of light guided in fiber core, PCF is　classified as TIR and PBG. Stacking and drawing technique are used for the preparation of our PCFs to realize special characteristics　such as endless single mode, extremely large mode area, wave-guide in hollow core, high nonlinear effects and birefringence　etc.

We have developed a series of PCFs for all kinds of applications based on our synthetic material, PCVD process, stacking drawing technique and theoretical simulation.

Applications

• Supercontinuum light source
• Fiber lasers and amplifiers
• High power transmission
• Fiber gratings and sensors
• All optical signal process

Characteristics

Photonic crystal fiber has following characteristics compared with similar fiber：

• Low loss
• Uniform along long fiber length
• Fine microstructure，excellent characteristics performance of specific fiber type
• Single material，high purity silicon dioxide（except all solid photonic bandgap fiber）

Standard Products

• Endlessly single mode photonic crystal fiber
• Polarization maintaining photonic crystal fiber
• High nonlinearity photonic crystal fiber
• All solid photonic bandgap fiber

Main Classes	SubClasses	Attributes	Fiber Structure	Application Examples
Total Internal Reflection (TIR)	Endlessly Single-Mode Fiber			Energy Delivery
	High Nonlinearity Fiber	950-1100nm ZDW		Supercontinuum generation by 1μm pulse laser or CW laser
		700-900nm ZDW		Supercontinuum generated by 0.8 μm fs pulse laser; Nonlinear Optics; Nonlinear Fiber Laser
		Dispersion Flat
	Multi-core Fiber	Dual Core		Directional coupling components; Interferometer
	PM Fiber			Gyro; Interferometer
Photonics Bandgap (PBG)	All-Solid Bandgap Fiber	Tailored Bandgap Spectrum		Special dispersion and operating wavelength fiber

Dispersion Compensating Fiber (DCF)

Dispersion compensating fiber is specially developed through proprietary PCVD-based technology. Taking advantages of PCVD process, we are able to manufacture complex index-profile shapes accurately, therefore to get the optimized products with the best compromise between insertion loss and residual dispersion over the compensated working wavelength. Customized fibers with special center wavelength and dispersion are available.

Characteristics

• Broad band dispersion compensating of DWDM network and　extremely low residual dispersion
• 80-120% slope compensation in C/L band
• Low insertion loss and high negative dispersion coefficient
• High figure of merit（FOM）
• Low PMD
• Performances meet the criterion Telcordia GR-2854-core
• Reliability meets the criterion Telcordia GR-1221-core
• Customized encapsulation type，dimension，connector type and　jumper length
• Good splicing characteristics

Applications

• Single mode fiber backbone and metropolitan area networks based on recommendation G.652
• DWDM networks
• SDH networks
• CATV
• Dispersion adjustment

Standard Products:

• DCF for G.652 C band (Part NO. DM1010-A)
• DCF for G.652 L band (Part NO. DM1010-B)
• DCF for G.655 C band (Part NO. DM1011-A)
• DCF for CATV and high FOM（Part No.DM1013-A）

Products available:

• Modified diameter-reduced DCF for miniaturized DCM
• DCF for G.656 fiber
• Customized DCFs

Hard Polymer Cladding Optical Fiber (HPCF)

Large core fiber with low OH is suited for 850nm apparatus and systems. The hard polymer cladding provides higher　tensile strength and greater resistance to moisture than the conventional one. These features together create a fiber widely used　in fields of telecommunication and industry, and near-IR spectroscopy environment.

Hard polymer (HP) cladding, made of “fluoroacrylate”, plays an important role in protecting glass core. In the process of　installation or termination, HPCF is hard to break, even under the tightly bent or rough conditions.

Large core with 200 μm- 600 μm diameter provides an excellent coupling efficiency for data links and connectors. Systems　with large core fiber have lower cost due to the loose tolerance characteristics of the components. HPCF shows the best　performance applied to short distance medium transmission and data transmission.

Applications

• High energy laser transmission
• Short-to-medium distance telecommunication
• Electric signal transmission
• Locomotive traction control
• Medical sensor
• Factory automation control
• Laser therapy and operation
• Near-IR spectroscopy application
• Optical pyrometry
• Nuclear radiation monitoring

Characteristics

• Higher coupling efficiency provided than LED and laser source
• Tolerant of wide fluctuations in temperature and humidity
• More effective and cheaper connection mode than single mode and multimode fiber
• Excellent fatigue resistance performance
• Excellent radiation resistance performance
• Compatible with a variety of light sources

Specifications

* The tight buffer material can be changed to UV acrylate or PFA

Polarization Maintaining Fiber (PMF)

Polarization Maintaining Fiber (PMF) is specially designed for fiber optic gyroscopes (FOGs) and polarization-sensitive components applications. This kind of fiber exhibits extremely　low attenuation and excellent birefringence characteristics, and uses in a variety of demanding　applications.

PMF is manufactured through the high precision Plasma Chemical Vapor Deposition　(PCVD) process. This process produces preforms with precise refractive index profiles,　material uniformity and dimensional tolerances, therefore, makes fibers with excellent　birefringence, low attenuation and extremely tight tolerances.

With dual-layer, UV-cured Acrylate coating, YOFC polarization maintaining fiber has high　environmental stability performance over the temperature range of -45℃ to +85℃ (-49℉　to +185℉).

Applications - PMF for telecomm

• Polarization-sensitive components
• High performance transmission laser pigtails
• Pigtail to LiNbO3 FOG chip (IOC)
• Polarization-based sensors

Characteristics

• Excellent polarization maintaining properties
• Tight geometric tolerances and very low attenuation
• Dual-layer UV-Acrylate coating and tight buffering structure
• High environmental stability and reliability

Applications - PMF for Gyroscope & Sensor Fibers

• Fiber Optic Gyroscopes (FOGs)
• Polarization maintaining fused-fiber couplers
• Polarization-sensitive components
• High performance transmission laser pigtails
• Polarization-based sensors

Characteristics

• Short beat length
• Extremely high birefringence
• Excellent polarization maintaining properties
• Tight geometric tolerances and very low attenuation
• Low bending-induced attenuation
• Tight tolerance, dual-layer, and UV-Acrylate coating
• High environmental stability and reliability

• Customised PMFs are available with different application designs
• Standard proof test minimum is 1%. 2% proof test fiber is available.

Polarization Maintaining Fiber Series (PMF)

Polarization Maintaining Fiber Series (PMF) specifications -2

• Customised PMFs are available with different application designs
• Standard proof test minimum is 1%. 2% proof test fiber is available.

Applications - Polarisation Maintaining Birefringence Matching Fibers

• Pigtail to LiNbO3 FOG chip (IOC)
• Polarization maintaining fused-fiber couplers
• Polarization-sensitive components
• High performance transmission laser pigtails
• Polarization-based sensors

Characteristics

• Excellent birefringence matching properties
• Excellent polarization maintaining properties
• Excellent polishing properties
• Tight geometric tolerances
• Low bending-induced attenuation
• Tight tolerance, dual-layer, and UV-Acrylate coating
• High environmental stability and reliability

• Customised PMFs are available with different application designs
• Standard proof test minimum is 1%. 2% proof test fiber is available.

Bending Insensitive Single Mode Fiber (BI-SMF)

Bending Insensitive Single Mode Fiber (BI-SMF) are optimized for enhanced low macro-bending sensitivity compared to the regular SMF. The bending insensitive single-mode fibers combine two attractive features: low intrinsic attenuation and excellent low macro-bending sensitivity. It is comprehensively optimized for use in O-E-S-C-L band (1260-1625nm) if low water peak concept is chosen.

BI-SMFs offers high resistance to additional losses due to low macro-bending induced loss in the long wavelength region. This not only supports L-band applications but also allows for easy installation without excessive care when storing the fiber, for example, in splicing cassettes. The fiber supports installation with small cable bending radii and compact organizers.

Applications

• Short pitch cables for special application
• High performance optical network operating in O-(E)-S-C-L band
• High speed optical routes in FTTx
• Cables with extremely tight bending requirements
• Small-sized optical component

Characteristics

• Low macro-bending sensitivity including L-band
• Low PMD of 0.08ps/√km link design value
• Low micro-bending induced loss
• Low splice loss and high splice yields
• Superior geometry

Graded Index Multi-mode Fiber (GIMM)

Silica-cladding multimode fibers (preforms) with graded index profile are comprehensively optimized at both 850nm and 1300nm operating wavelengths. At both wavelengths, extremely low attenuation and high bandwidth could be achieved. To satisfy the demand of client to the most extent, a series of silica-cladding graded index multimode fibers can be customized with different fiber designs, including core diameter, cladding diameter, fiber diameter and NA.

Our fibers are manufactured with the advanced Plasma Activated Chemical Vapor Deposition (PCVD) process. Due to the inherent advantages of the process, these fibers have extremely precise refractive index profiles (RIPs), which could provide excellent geometrical, optical, environmental and mechanical properties.

Applications

• Fiber sensor and laser transmission
• Data communications, local area networks and CATV
• Medical apparatus
• Optical devices and connectors

Characteristics

• High coupling efficiency to LED and laser sources
• High power transmission
• Good stripping performance
• Low attenuation and high bandwidth

Customisation

• Flexible Numerical Aperture (NA): 0.10-0.32
• Flexible Core-Cladding Diameter Ratio (CCDR): 1.05-2.0
• Core Diameter: 50μm-1000μm
• Customized Preform
• Silicone or Polyimide coating is available to achieve high　temperature fiber
• Tight buffer with diameter 500μm or 900μm is available.　PVC, ETFE and Hytrel are provided for the tight buffer material.

GIMM-1

GIMM-2

Step Index Multi-mode Fiber (SIMM)

ilica-cladding multimode fibers (preforms) with step index profile are comprehensively optimized at both 850nm and 1300nm operating wavelengths. At both wavelengths, extremely low attenuation and high bandwidth could be achieved. To satisfy the demand of client to the most extent, a series of silica-cladding step index multimode fibers can be customized with different fiber designs, including core diameter, cladding diameter, fiber diameter and NA.

Our fibers are manufactured with the advanced Plasma Activated Chemical Vapor Deposition (PCVD) process. Due to the inherent advantages of the process, our fibers have extremely precise refractive index profiles (RIPs) to provide excellent geometrical, optical, environmental and mechanical properties.

Applications

• Fiber sensor and laser transmission
• Data communications, local area networks and CATV
• Medical apparatus
• Optical devices and connectors

Characteristics

• High coupling efficiency to LED and laser sources
• High power transmission
• Good stripping performance
• Low loss broad spectrum application,275~2100nm

Customisation

• Flexible Numerical Aperture (NA): 0.10~0.34
• Flexible Core-Cladding Diameter Ratio (CCDR): 1.05~1.4
• Core Diameter: 40μm-800μm
• High strength fiber
• Customized Preform and Fluorine doped Substrate Tube
• Silicone or Polyimide coating is available to achieve high temperature fiber
• Tight buffer with diameter 500μm or 900μm is available. PVC, ETFE and Hytrel are provided for the tight buffer material.

SIMM-1

SIMM-2

Specialty Step Index Single-mode Fiber

Specialty step index single-mode fiber is geometrical or NA customized according to different requirement, such as geometry, NA, cutoff wavelength, MFD, bending sensitivity.

Applications

• Components of bend insensitive use
• Pump fiber
• Data signal transmission
• Sensor

Characteristics

• Customized Cladding and Coating geometry
• Customized NA, reduce bend sensitivity
• High coupling efficiency
• Dual-layer coating protection, reduce loss by microbending

• Customised coating Diameter is available
• High proof test level up to 200 kpsi is available

• Customised coating Diameter is available
• High proof test level up to 200 kpsi is available

Single-mode Coupler Fibers

Single-mode coupler fibers are particularly developed for manufacturing of fused optical fiber components. Fabricated with patented Plasma Chemical Vapor Deposition (PCVD) process, our coupler fiber offers excellent uniformity, core-cladding concentricity, precise geometry and outstanding optical performance. Special optical waveguide structure and dual acrylate coating system ensures high mechanical strength and insensitivity to bending. This product is an ideal option for application in near-infrared communication devices and sensors.

Applications

• Optical fiber couplers, splitters and combiners
• Component fiber for optical fiber lasers, EDFAs and DWDM system
• Pump laser pigtails
• Gratings
• Low-loss fused optical devices for C/L band application

Characteristics

• Outstanding uniformity and geometry control using patented Plasma Chemical Vapor Deposition (PCVD) process
• Superior mechanical protection provided by dual acrylate coating system
• Ultra-low bending loss
• Low attenuation
• Low insertion loss
• Low splice loss
• Excellent consistency and reliability

• * Here values provided are nominal values
• ** Coupler fibers with cladding diameter of 80 μm are also available

High Temperature Fiber (HTF)

Data transmission, high power laser delivery and sensors require special reliability at demanding environment conditions. A special challenge is a changing temperature, extreme heat or extreme cold conditions for a fiber when used as fire detector, temperature sensor or for data transmission in certain special industrial applications. We offer HTF’s for medium and high temperature environment with the temperature up to 300 ºC. F’s are demanded in environments such as mining industry, aerospace, military, oil & gas industry and medical that requires a maximum protection of the fiber at very high temperatures.

Features:

• Excellent high temperature stability
• Excellent optical and geometrical properties
• Customized profile and sizes

Typical Fibers:

1. Special Polymer Coated High Temperature Fiber

Operation temperature: long term, -65 ºC to +150 ºC; intermittent, up to 200 ºC

Cladding diameter range from 200µm to 660µm, customized NA and coating diameter

1.1 Coating diameter (125µm cladding fibers): 245±10µm

1.2 Coating diameter (200~660µm cladding fibers): NA: Customized

2. Polyimide Coated High Temperature Fiber

Operation temperature: in long term, -65 ºC to +200 ºC; intermittent, up to 250 ºC

Cladding diameter range from 200µm to 660µm, customized NA and coating diameter

1.1 Coating diameter (125µm cladding fibers): 155±5µm

1.2 Coating diameter (200~660µm cladding fibers): NA: Customized

3. Optimized Polyimide Coated High Temperature Fiber

Operation temperature: in long term, -65 ºC to +300 ºC; intermittent, up to 350 ºC

Cladding diameter range from 200µm to 660µm, customized NA and coating diameter

1.1 Coating diameter (125µm cladding fibers): 155±5µm

1.2 Coating diameter (200~660µm cladding fibers): NA: Customized

Properties

High Temperature Fiber (HTF)

*For attenuation measurement, the fiber is wound with near zero tension onto a greater than 36cm diameter measurement spool

Customised products are available upon customer request, such as difference geometrical parameters, bandwidth, NA, higher proof test level, etc.

ETFE Tight Buffered Fiber

ETFE is an engineering plastic with high performance, and it is a copolymer of ethylene and tetrafluoroethylene, with excellent general property, such as outstanding resistance to heat and flame, low temperature resistance, insulation resistance, chemical resistance, and particular less viscous performance. Therefore, ETFE tight buffered fiber also has above-mentioned performance, and can be applied to heat resistance, flame retardant and other special field.

All of ETFE tight buffered fiber have past 100kpsi proof-test, with a primary coating of UV-cured acrylate to a diameter of 250μm and a secondary ETFE buffer to 900μm. The primary coating and secondary buffer could be mechanically removed to the 125μm glass diameter in one step, which could be used for direct termination with connectors.

Also it permits mechanical stripping in short lengths (about 15mm) to remove the secondary buffer and leave the 250μm primary coating intact, which is available for splicing to similar buffered fibers from loose-tube gel-filled cables.

Applications

• Temperature and stress monitoring
• Hazardous environment connectivity
• Linking optical communication modules/optical link couplers
• Providing an effective resistance to water vapor, oils/fuels, acids/alkalis, and solvents, which could adversely affect the fiber's signal transmission capabilities

Characteristics

• Highest flame retardant grade of UL94 V-0
• Flexibility at low temperature
• Retention of properties after aging at elevated temperatures up to 150℃
• Ultimate protection for fiber

Specifications Dimension of TBF (Customer sizes are available through minimum order)

Characteristics

ETFE Tight Buffered Fiber 900 Micron ETFE Tubing

900 micron ETFE tubing use the imported material ETFE, and are processing through the advanced technology. ETFE tubing has excellent properties, such as resistance to heat and flame, and high specific dielectric strength, which could provide the optimal protection to 250μm fibers.

Applications

• To protect bare fibers in any situation against mechanical damage during handling and installation
• To provide an effective resistance to water vapor, oils/fuels, acids/alkalis, and solvents, which could adversely affect the fiber's signal transmission capabilities
• Excellent antiabrasive property applied in medical equipments,high voltage and radiant environment.
• To be easily installed over fiber up to 5 meters

Characteristics

• Highest flame retardant grade of UL94 V-0
• Flexibility at low temperature
• Retention of properties after aging at elevated temperatures up to 150℃

Product colour

Erbium Doped Fibers (EDF)

We offer full series of Erbium Doped Fiber, which could meet the most stringent amplifier requirements both for C-Band and L-Band. Through 1480nm or 980nm pump technology, Erbium Doped Fiber can realize 35nm amplification bandwidth, and maintain flatness gain to get ideal power conversion efficiency.

Erbium Doped Fiber is specially designed for high performance, low noise requirement amplifier, for example: preamplifier, power amplifier and line amplifier in the WDM communication system.

Erbium Doped Fiber has been optimized through co-doping with Erbium and Aluminium technology to ensure the high quality performance.

Applications

• For the Telecommunication industry
• DWDM amplifiers
• CATV amplifiers
• 980nm or 1480nm pumps
• Terrestrial and Submarine telecommunications
• Defence/Military/Aerospace

Characteristics

• Excellent spectral uniformity
• High power conversion efficiency over the amplification bandwidth
• Industry leading fiber geometry
• Low PMD
• DLPC9 dual-layer coating to ensure excellent mechanical properties
• Good performance of anti-hydrogen loss
• Lower splice loss

• Other values available on request
• Cutoff wavelength below 980nm on request
• Larger MFD about EDF1007 on request

Double Clad Ytterbium Doped Fibers

Double-clad ytterbium doped fiber (YDF) is one kind of active fiber applied for 1 micrometre fiber optical amplifier and fiber laser. Laser made by fiber cavity is extensively used in areas as military, material processing and scientific research. Fiber laser is widely used for its advantages of lightness, efficiency and stability, which are competitively alternative to solid state laser.

Applications

• CW/Pulse fiber laser and amplifier
• Military, Industry, Medical
• Material processing
• Fiber laser source

Features/Characteristics

• Precise geometry
• High Ytterbium doped concentration
• Low NA core, LMA designed
• High laser slope efficiency
• Low photo-darkening
• Stable storage and operate in extreme atmosphere

Specifications

YDF-DC 10/130 Ytterbium Doped Fibers

Double-clad ytterbium doped fiber (YDF) is one kind of active fiber applied for 1 micrometre fiber optical amplifier and fiber laser. Laser made by fiber cavity is extensively used in areas like military, material processing, medical field and scientific research. Fiber laser is more and more widely used for its advantages of lightness, efficient and stability after the solid laser comes to the application. It means great of double-clad YDF for the laser performance. YOFC is adhering to precise control and lean production of communication fiber to fully meet the demand of laser users.

Applications

• Fiber laser source
• Low power continuous fiber laser（YDF-DC- 01 10/130）
• MOPA-structure pulse fiber laser’ oscillator stage.

Features/Characteristics

• Precise geometry index
• Good uniformity of doping
• Highly flat core RI profile（YDF-DC-SI 10/130）
• Low NA
• No core RI profile sink
• High laser slope efficiency
• Low photon darken effect （YDF-DC-01 10/130）

YDF-DC-PM 5/125 Ytterbium Doped Fiber

Double-clad ytterbium doped fiber (YDF) is one kind of active fiber applied for 1 micrometre fiber optical

amplifier and fiber laser. Laser made by fiber cavity is extensively used in areas like military, material processing, medical field and scientific research. Fiber laser is more and more widely used for its advantages of lightness, efficient and stability after the solid laser comes to the application. It means great of double-clad YDF for the laser performance. We are adhering to precise control and lean production of communication fiber to fully meet the demand of laser users.

Features

• Precise geometry index
• Good uniformity of doping with long pition
• Good uniformity of batches
• High mode field and core RI profile overlapping
• Highly insensitive of bending
• Large output laser SNR
• High laser slope efficiency

Application

• Fiber laser source
• Pulse fiber laser’ oscillator stage
• Prime amplifier for mid-large power pulse fiber laser

Double/Single Clad Passive Fiber

Double/single clad passive fiber is optimized precisely to match the DC-YDF series, with low splice performance. The fiber is widely used in industrial, medical, military and other fields.

Applications

• Pulse / CWfiber laser / Amplifier
• Materials processing
• LIDAR
• Pigtail/Combiner

Characteristics

• Precise geometry
• Low splice loss
• Low NA core to maintain excellent beam quality

Multi-Core Fibers

Multi-Core fiber (MCF) is a new kind fiber with several separate fiber cores co-existed in the same cladding. MCF can achieve low inter-crosstalk in long SDM optical transmission by adopting the sever-core structure and F-doped cladding, which has a typical promising future in optical transmission field. Based on the concept of Space pision multiplexing (SDM), multi-core fiber can realize transmitting several light signals through different channels and is expected as a breakthrough technology against capacity crunch of optical transmission system over a single-mode fiber.

With the development of SDM (Space Division Multiplexing) and multi-core fiber sensor technology, multi-core fiber would be a vital branch of fiber development. The level of crosstalk and fiber coating of MCF can also be customization to fulfil your use in transmission，sensor, industry, medical equipment fields and so on.

Applications

• Extremely large capacity transmission system
• Large-Capacity Multi-Task Access
• Distributed fiber sensors
• Medical Equipments

Characteristics

• Single fiber with spatial superchannels
• Ultra-low cross talk between cores
• Excellent fiber geometric consistency
• Low and consistent attenuation cher

UV Optimized Fibers

UV fiber is a kind of fiber with optimized attenuation in the working range from 200nm to 670nm. Pure Silica is used in fiber core in order to achieve good and stable transmission performance.

Applications

• Laser transmission
• Medical diagnosis
• scientific research
• Optical devices and connecting devices
• Sensor
• Analytical instruments
• UV curing

Characteristics

• Step structure profile
• pure silica core structure
• Customized geometry, coating materials and NA are available
• Low-loss for UV-band
• Stable attenuation of long working hours

GI 80/125-30/245

Special Graded Index Optical Fiber for Consumer Electronics Connecting

Special graded index optical fiber for consumer electronics is uniquely designed for interconnecting computers　and other consumer electronics devices.

Interconnecting consumer electronics devices via optical fiber & cable, which insteads of copper cable, will be the　ultimate solution to integrate the numerous and complicated I/O ports in consumer electronics devices.

YOFC special graded index optical fiber for consumer electronics has two great characteristics: the ultra-low bending　induced loss, which could support the on-desk applications; and the ultra-high bandwidth above 10 Gbps I/O　transmission speed supported by the near perfect graded index profile.

I/O Transfer Performance Comparison

Applications

• 10Gbps Computer I/O transmission connect line
• 10Gbps Consumer electronics devices I/O transmission connect line
• Electrics-Optics transform line

Characteristics

• Specialty designed Graded Index Profile
• Higher NA or customized NA
• Ultra-Low bending induced loss provided on 1.5mm radius
• Maintaining high tolerance strength under multiple-time bending conditions