Tunable Filters An acousto-optic tunable filter (AOTF) is a solid-state, electronically-addressable random-access optical pass-band filter. It may be used to rapidly and dynamically select a specific wavelength from a broadband or multi-line source.
STY-AOTF-PRO is the latest plug and play wavelength selection module based on the Acousto-Optic Crystal. It has the two output: broadband supercontinuum output (useful for broadband scattering, reflection and transmission spectroscopy) and single line tunable output (useful for replacing multiple laser lines). Moreover the single line tunable output covers 430-1450nm range in one output beam, offering great flexibility for spectroscopy, microscopy and nanophotonics application.
Features:
Applications：
Specifications:
STY-AOTF system is a simply plug and play module with any of our STYS series supercontinuum system. For each integrated AOTF crystal, the system enables up to 8 simultaneous tunable wavelength channels. Combines of three different crystals, the AOTF module covers the entire supercontinuum spectrum from 400nm to 2400nm. The AOTF module can be equipped with either one or two of the AOTF crystal, according to customers’ demand. The AOTF offers a free-space collimated beam as standard optical output. As an alternative, a single-mode fiber delivered output is also available.
Features：
Applications:
| AOTF Crystals | VIS | NIR | IR |
| Wavelength Range | 400nm~650nm | 650nm~1100nm | 1100~2000nm |
| Filter Bandwidth | 2nm~7nm | 2nm~6nm | 4~16nm |
| AOTF Diffraction Efficiency | ＞90% | ||
| Output Efficiency | ＞40% | ||
| Polarization | Linearly Polarized | ||
Our VLF wavelength selection system is based on the linear variable filter technology, offering tunable wavelength from 400nm to 840nm. Moreover, the linewidth could be varied from 10-300nm, making it an ideal solution for fluorescence microscopy, nanophotonics and other application areas. The standard output of the VLF is a free-space collimated beam, as an option, the output can also be single mode fiber with FC connector.
Features:
Applications:FLIM
Specifications:
Our STY-VLF-M motorized wavelength selection system is based on the linear variable filter technology, offering tunable wavelength from 400nm to 840nm via computer. Moreover, the linewidth could be varied from 10-300nm, making it an ideal solution for fluorescence microscopy, nanophotonics and other application areas. The standard output of the VLF is a free-space collimated beam, as an option, the output can also be single mode fiber with FC connector.
Features:
Applications:
Specifications:
The above STY series acousto-optical tunable filters are used with our STYS series supercomtinnum lasers.
An acousto-optic tunable filter (AOTF) is a solid-state, electronically-addressable random-access optical pass-band filter. It may be used to rapidly and dynamically select a specific wavelength from a broadband or multi-line source. When specific matching conditions between the acoustic and optical beams are met, diffraction will occur. As a result it is possible to electronically control key filter parameters such as wavelength, modulation-depth and even bandwidth, thus providing rapid (typically μs), dynamic, random access optical filtering.
Resolution bandwidths down to<0.1% are available with exceptional performance and with aperture sizes up to 25 mm and beyond. We have developed and patented techniques to allow us to offer options such as large-aperture imaging filtering, sideband suppression, and transmission of multiple discrete wavelengths.
We offer a range of AOTFs to suit a variety of applications. For scanning an entire image in wavelength at speeds sufficient for real-time video rate spectral imaging, high optical throughput is required. For this purpose devices with large aperture and/or field of view are recommended.
Our standard models are below:
| Model | Wavelength | Active Aperture | Resolution |
| AOTF 2837-31 | 351-430 nm | 2.5 mm | 1.0 nm |
| AOTF 3151-01 | 400-650nm | 2.5 mm | 2.5 nm |
| TF525-250-6-3-GH19A | 400-650 nm | 3 mm | 5 nm |
| TF525-250-4-6-GH57A | 400-700 nm | 6 mm | 4 nm |
| TF550-300-4-6-GH57A | 400-700 nm | 6 mm | 4 nm |
| TF560-280-1-5-NT2 | 420-700 nm | 5 mm | 0.3 nm |
| AOTF 2838-01 | 450-670 nm | 2.5 mm | 1.3 nm |
| AOTF 2885-02 | 450-670 nm | 2.5 mm | 2 nm |
| AOTF 2885-04 | 450-670 nm | 2.5 mm | 4 nm |
| TF625-350-2-11-BR1A | 450-800 nm | 11 mm | 1.5 nm |
| TF850-500-1-3-PF3 | 600-1100 nm | 3 mm | 1.5 nm |
| TF850-500-10-6-GH58A | 600-1100 nm | 6 mm | 10 nm |
| AOTF 2986-01 | 640-1100 nm | 2.5 mm | 5 nm |
| TF925-550-10-3-GH29A | 650-1200 nm | 3 mm | 9 nm |
| TF950-500-1-2-GH96 | 700-1200 nm | 2 mm | 0.6 nm |
| TF950-500-0.3-3-GH98 | 700-1200 nm | 3 mm | 0.3 nm |
| TF950-500-1-5-NT2 | 700-1200 nm | 5 mm | 0.8 nm |
| TF1300-800-16-11-NO1A | 900-1700 nm | 11 mm | 16 nm |
| TF2270-2560-5-5-GH65 | 990-3550 nm | 5 mm | 5 nm |
| AOTF 2996-01 | 1100-2000 nm | 2.5 mm | 12 nm |
| TF1650-1100-2-3-GH40 | 1100-2200 nm | 3 mm | 1.6 nm |
| TF1650-1100-9-3-GH30A | 1100-2200 nm | 3 mm | 8 nm |
| I-TF1650-1100-1-3-GH107 | 1100-2200 nm | 3 mm | 1.0nm |
| TF1875-1250-10-6-GH59A | 1250-2500 nm | 6 mm | 10 nm |
| TF1900-1100-6-11-GH54A | 1300-2500 nm | 11 mm | 6 nm |
| TF1900-1100-6-25-GH87A | 1350-2450 nm | 25 mm | 6 nm |
| TF2000-1000-2-6-GH78 | 1500-2500 nm | 6 mm | 1.2 nm |
| TF2250-1500-12-7-GH61A | 1500-3000 nm | 7 mm | 12 nm |
| TF2250-1500-2-3-GH107 | 1500-3000 nm | 3mm | 2 nm |
| TF2900-2200-5-3-GH40 | 1800-4000 nm | 3 mm | 5 nm |
| TF3000-2000-3-7-GH78 | 2000-4000 nm | 7 mm | 2.6 nm |
| TF3250-2500-3-3-GH107 | 2000-4500 nm | 3mm | 3 nm |
| TF3300-2200-xxx | 2200-4400 nm | Up to 15 mm | Varies |
The STBR series Dynamic Tunable Bandpass Filter adjusts the center wavelength of a narrow band of light over a 100 - 200nm range. It offers very high resolution of ~1.5nm and either single or simultaneous multiple wavelength selection. It is able to precisely and rapidly adjust the wavelength and intensity of the diffracted/filtered light by varying the frequency (see graph) and RF power. We offer both free-space and fiber-coupled configurations. AOTFs are used widely in numerous optical systems and applications, especially in industrial or process control near-infrared (NIR) spectroscopy applications.
| Model # | Spectral Range (nm) | Drive RF Frequency (MHz) |
Optical Aperture (mm) | Spectral Resolution (nm) | Acceptance Angle (deg.) | DE (%) | ||||||
| STBR-QZAF-.20-.40 | 200-400 | 90-250 | 2.0 x 10.0 | 1.2-7.0 | 4.4-7.2 | 20-30 | ||||||
| STBR-TEAF_-.36-.52_ | 360-520 | 100-190 | 5.0 x 5.0 Available Standard Optical Apertures includes: 3.0x3.0 5.0x5.0 7.0x7.0 10.0x10.0 Other optical apertures are available upon request. |
S | H | S | H | 70 | ||||
| 0.8-4.0 | 0.5-2.2 | 4.18-4.36 | 2.85-3.4 | |||||||||
| STBR-TEAF_-.40-.65_ | 400-650 | 220-110 | 1.0-5.1 | 0.5-2.5 | 4.8-6.2 | 3.4-4.4 | 70-90 | |||||
| STBR-TEAF_-.45-.70_ | 450-700 | 180-100 | 1.7-6.2 | 0.8-3.2 | 5.2-6.5 | 3.6-5.0 | 70-90 | |||||
| STBR-TEAF_-.55-1.0_ | 550-1000 | 155-70 | 1.5-8.3 | 0.9-5.0 | 4.3-5.9 | 3.2-4.5 | 70-90 | |||||
| STBR-TEAF_-.40-1.0-2CH* | 400-1000 | 220-70 | 1.2-8.3 | 0.7-5.0 | 3.8-5.9 | 2.8-4.6 | 50-60 | |||||
| STBR-TEAF_-.80-1.6_ | 800-1600 | 130-60 | S | H | EH | S | H | 70-90 | ||||
| 4-10 | 3-8 | 2-6 | 5.39-5.71 | 4.96-7.2 | ||||||||
| STBR-TEAF_-1.2-2.0_ | 1200-2000 | 90-50 | 6-16 | 6-12 | 4-9 | 6.78-8.56 | 5.3-7.5 | 25-35 | ||||
| STBR-TEAF_-1.5-3.0_ | 1500-3000 | 68-34 | 9-37 | 8-29 | 6-22 | 7.4-9.26 | 6.6-7.95 | 30 | ||||
| STBR-TEAF_-2.4-4.5_ | 2400-4500 | 40-20 | 25-83 | 18-65 | 14-48 | 8.43-11.38 | 7.3-9.72 | 40 | ||||
| STBR-TEAF_-0.8-1.6-UH | 800-1600 | 190-90 | S | H | S | H | 60 | |||||
| 2-6 | 2.0-4.5 | 9.9-15.2 | 8.65-13.3 | |||||||||
| STBR-TEAF_-1.2-1.7-UH | 1200-1700 | 120-80 | 5-7 | 3.0-5.0 | 11.9-14.68 | 9.47-12.88 | 50 | |||||
| STBR-TEAF_-1.5-2.4-UH | 1500-2400 | 90-55 | 6-14 | 4.5-11.0 | 13.4-16.95 | 11.9-15.2 | 40 | |||||
| STBR-TEAF_-2.4-3.2-UH | 2400-3200 | 55-40 | 14-25 | 11.0-17.0 | 16.95-19.8 | 15.2-17.29 | 35 | |||||
| STBR- TEAF_-3.2-4.5-UH | 3200-4500 | 45-30 | 24-48 | 17.5-37.0 | 19.8-23.44 | 17.29-20.9 | 30 | |||||
* Available in low or standard resolution.
A crystal of Tellurium Dioxide (TeO2) AOTF that operates in the NIR region in a so-called non-collinear configuration - the acoustic and optical waves propagate at quite different angles through the crystal.
Material: TE – Tellerium Dioxide (350-5000 nm) and QZ – Quartz (SiO2)
Options:
The STBR dynamic tunable bandpass filters are commonly used to dynamically select among different wavelength channels at the receiver end of dense WDM transmission systems. Other applications include tuning the center wavelength of broadband sources (such as white light sources or LEDs) in laboratory test and measurement systems. A typical band-pass shape of the selected light by AOTF filter is shown in the diagram above on the right.
| Model # | Wavelength Range (nm) | Spectral Resolution (MHz) | RF Frequency (MHz) |
Insertion Loss (dB) |
| STBR-TEAF-0.40-0.60-2FP | 400-600 | 1-5 | 59-100 | 3-5 |
| STBR-TEAF-0.45-0.7-S-2FP | 450-700 | 3-9 | 100-180 | 3-5 |
| STBR-TEAF-0.9-1.2-UH-2FP | 900-1200 | 1 | 130-160 | 4-5 |
| STBR-TEAF-1.2-1.7-UH/EH-2FP | 1200-1700 | 1.0-2.5 | 80-120 | ~5 |
| STBR-TEAF-1.5-1.65-UH/EH-2FP | 1500-1650 | 1.5-2.5 | 80-100 | ~5 |
| STBR-TEAF-1.1-2.1-S-2FP | 1100-2100 | 4.0-15.0 | 50-100 | 5-7 |
Fiber Type:
Fiber Connectors:
Options:
| Model | STBR-VFI-XX-YY-SPS-A-C3 | STBR-VFI-XX-YY-SPF-A-C3 |
| Frequency range | XX MHz ( matching the tunable filter requirements) | |
| Frequency Step Size | 4 Hz | 10 Hz |
| Frequency Stability | 0.010% (100PPM); +15oC to +75oC | 0.015% ; +15oC to +75oC |
| Frequency Switching Speed | 15ms typ. (from fmin to fmax) | 8ns |
| Minimum Duration of Each step | N/A | 32ns for sweeping mode 1ms for hopping mode (for<300 hops) 15ms for hopping mode (＞300 hops) |
| Power output | Optimised for max performance of the tunable filter device | |
| Power control | N/A | 12 bit attenuator with 25dB range (min.) |
| Modulation | None (TTL or Analog optional) | |
| Enclosure | The unit will be packaged in a 190 mm (7.5 inch) wide by 90 mm (3.5 inch) high by 220 mm (8.75 inch) deep instrument case. The rear panel heat sink increases the depth to 270 mm (10.5 inches) maximum. The size is exclusive of connectors. A detachable AC line cord and RF cable are provided. | |
| Environmental | Nominal Laboratory conditions: The maximum ambient temperature is +35° C. The unit is not sealed against moisture or condensing humidity. | |
| Output Impedance | 50 ohms | |
| Output Connectors | SMA jack on front panel | |
Over a number of years we have maintained an ambitious development program which we believe has enabled us to enhance the general performance and increase the capabilities of AOTF technology. Our product range includes purpose designed solutions for illumination / excitation wavelength selection and multispectral / hyperspectral imaging, for which we also offer the latest DFS driver technology.
Typical applications include; Biomedical (confocal microscopy & hyperspectral imaging), Scientific (spectroscopy) and industrial (process control).
Following is the list of our old models for your reference. Please contact us for updated information.
| Model | Description | Driver |
| 48032-4-3.5 | TeO2, 1.8-5um wavelength, aperture 4mm, deflection 2.7o, RF 5W | 64020-200-5ADSDFS-A 64020-200-5ADMDFS-A |
| 48055-2-1.7 | TeO2, 1.2-2.2um wavelength, aperture 2mm, deflection 2.71o, RF 1.5W | 64020-200-2ADSDFS-A 64020-200-2ADMDFS-A |
| 48058-1-.55 | TeO2, 442-676nm wavelength, aperture 1mm, deflection 1.4o, RF 0.8W | Eight Channel: 64048-80-.1-8CH-16 64048-80-.1-8CH-16M Four Channel: 64048-80-.1-4CH-5 64048-80-.1-4CH-5M |
| 48058-1-.55-WP | TeO2, 442-676nm wavelength, aperture 1mm, deflection 1.4o, RF 0.8W | Eight Channel: 64048-80-.1-8CH-16 64048-80-.1-8CH-16M Four Channel: 64048-80-.1-4CH-5 64048-80-.1-4CH-5M |
| 48058-2.5-.55 | TeO2, 442-676nm wavelength, aperture 2.5mm, deflection 1.4o, RF 0.8W | Eight Channel: 64048-80-.1-8CH-16 64048-80-.1-8CH-16M Four Channel: 64048-80-.1-4CH-5 64048-80-.1-4CH-5M |
| 48058-2.5-.55-WP | TeO2, 442-676nm wavelength, aperture 2.5mm, deflection 1.4o, RF 0.8W | Eight Channel: 64048-80-.1-8CH-16 64048-80-.1-8CH-16M Four Channel: 64048-80-.1-4CH-5 64048-80-.1-4CH-5M |
| 48058-5-.55 | TeO2, 442-676nm wavelength, aperture 5mm, deflection 1.4o, RF 0.8W | Eight Channel: 64048-80-.1-8CH-16 64048-80-.1-8CH-16M Four Channel: 64048-80-.1-4CH-5 64048-80-.1-4CH-5M |
| 48060-8-4-1.0-COL | TeO2, 800-1200nm wavelength, aperture 8x2mm, deflection 23mrad, RF<100mW | |
| 48062-1-.55 | TeO2, 442-676nm wavelength, aperture 1mm, deflection 1.3o, RF 0.8W | Eight Channel: 64040-75-.1-8CH-16B 64040-75-.1-8CH-16MB Four Channel: 64040-75-.1-4CH-5 64040-75-.1-4CH-5M |
| 48062-1-.55-WP | TeO2, 442-676nm wavelength, aperture 1mm, deflection 1.3o, RF 0.8W | Eight Channel: 64040-75-.1-8CH-16B 64040-75-.1-8CH-16MB Four Channel: 64040-75-.1-4CH-5 64040-75-.1-4CH-5M |
| 48062-2.5-.55 | TeO2, 442-676nm wavelength, aperture 2.5mm, deflection 1.3o, RF 0.8W | Eight Channel: 64040-75-.1-8CH-16B 64040-75-.1-8CH-16MB Four Channel: 64040-75-.1-4CH-5 64040-75-.1-4CH-5M |
| 48062-2.5-.55-WP | TeO2, 442-676nm wavelength, aperture 2.5mm, deflection 1.3o, RF 0.8W | Eight Channel: 64040-75-.1-8CH-16B 64040-75-.1-8CH-16MB Four Channel: 64040-75-.1-4CH-5 64040-75-.1-4CH-5M |
| 48062-4.5-.55 | TeO2, 442-676nm wavelength, aperture 4.5mm, deflection 1.3o, RF 0.8W | Eight Channel: 64040-75-.1-8CH-16B 64040-75-.1-8CH-16MB Four Channel: 64040-75-.1-4CH-5 64040-75-.1-4CH-5M |
| 48062-4.5-.55-WP | TeO2, 442-676nm wavelength, aperture 4.5mm, deflection 1.3o, RF 0.8W | Eight Channel: 64040-75-.1-8CH-16B 64040-75-.1-8CH-16MB Four Channel: 64040-75-.1-4CH-5 64040-75-.1-4CH-5M |
| TF515-230-4-5-VU1 | TeO2, 400-630nm wavelngth, aperture 5x5mm, beam separation 4 o, RF 2W | |
| TF525-250-6-3-GH19 | TeO2, 400-600nm wavelngth, aperture 3mm, beam separation 3 o | |
| TF525-250-6-6-GH57A | TeO2, 400-650nm wavelngth, aperture 6mm, beam separation 3 o | 64020-200-2ADMDFS-A 64020-200-2ADSDFS-A |
| TF527-245-6-3-GH18 | TeO2, 405-650nm wavelngth, aperture 3mm, beam separation 3 o | |
| TF527-245-6-3-GH19 | TeO2, 405-650nm wavelngth, aperture 3mm, beam separation 3 o | |
| TF600-300-6-3-GH19 | TeO2, 450-750nm wavelngth, aperture 3mm, beam separation 3 o | |
| TF640-325-2-12 |
TeO2, 475-800nm wavelngth, aperture 12x12mm, RF 2W | |
| TF800-400-20-5-VU2 | TeO2, 600-1100nm wavelngth, aperture 6mm, RF ~2W | |
| TF850-500-8-6-GH58A | TeO2, 475-800nm wavelngth, aperture 12x12mm, RF<1.5W | 64020-200-2ADMDFS-A 64020-200-2ADSDFS-A |
| TF1450-500-2-F2S-SU6 | TeO2, 1.2-1.7um wavelngth, aperture 12x12mm, RF 2W | |
| TF1650-1100-9-3-GH30A | TeO2, 1.1-2.2um wavelngth, aperture 3mm, RF 2.5W |
| Model | 48055-2-1.7 | 48058-5-.55 |
| Interactive Material | TeO2 | TeO2 |
| Acoustic Mode | Shear wave | Shear wave |
| Operating Wavelength | 1.2-2.2um | 442-676nm |
| Operating Frequency | 40-70MHz | 50-85MHz |
| Window Configuration | AR Coated | AR Coated |
| Static Transmission | ＞95% | ＞95% |
| Diffraction Efficiency | ＞80% @ 1.2um, ＞70% @ 2.2um | ＞80% per wavelength |
| Input Polarization | Linear, perpendicular to acoustic propagation | Linear, Vertical (Perpendicular to acoustic propagation) |
| Input Beam Divergence | 6 Deg @ 1.2 um Solid Angle 7 Deg @ 1.7 um 8 Deg @ 2.2 um |
<30 mrad (solid angle) |
| Acoustic Aperture size | < 2 mm | <5mm |
| Resolution | 6 nm @ 1.2 um 10 nm @ 1.7 um 17 nm @ 2.2 um |
3nm @ 476 nm 7.5nm @ 676 nm |
| Deflection angle with respect to incident beam | 2.71° | 1.4 degrees (wavelength insensitive) |
| RF Drive Power | 1.5 watts | 0.8 watt maximum |
| Impedance | 50 ohms nominal | 50 ohms nominal |
| VSWR | < 3:1 over bandwidth | < 2:1 over bandwidth |
| Package | 53B02965 | 53B1827 |
| Driver | 64020-200-2ADSDFS-A 64020-200-2ADMDFS-A |
64048-80-.1-8CH-16(8 channel) 64048-80-.1-8CH-16M(8 channel) 64048-80-.1-4CH-5(4 channel) 64048-80-.1-4CH-5M(4 channel) |
| Model | 48060-8/4-1.0-COL | TF1450-500-3-F2x |
| Interactive Material | TeO2 | TeO2 |
| Acoustic Mode | Shear wave | Anisotropic, slow shear |
| Operating Wavelength | 800-1200nm | 1.2μm to 1.7μm |
| Operating Frequency | 55-85MHz | 60 to 85MHz |
| Window Configuration | AR Coated | AR coated |
| Static Transmission | ＞95% | |
| Diffraction Efficiency | ＞85% with linear polarized light perpendicular to acoustic propagation |
Insertion Loss: < 3.0dB (for linearly polarised light) < 6.0dB (for unpolarised light) |
| Acoustic Aperture Size | 8mm x 2 mm | |
| Resolution | <1nm (best effort) | 3nm at 1300nm, 4.5nm at 1550nm |
| Acceptance Angle(solid) | ＞0.75mrad | |
| Deflection angle with respect to incident beam | 23mrad nominal | |
| RF Drive Power | <100mW | 2W |
| Impedance | 50 ohms nominal | |
| VSWR | < 1.5:1 over bandwidth | |
| Package | 53B00337 | |
| Fiber Type | Single mode(2m), or Polarisation maintaining(multimode) | |
| Fiber Connectors | FC / PC Seiko-Geiken(SMF), or Pig-tails for splicing, FC/APC(PMF) |
| Model | TF515-230-4-5-VU1 | TF525-250-6-6-GH57A |
| Interactive Material | TeO2 | TeO2 |
| Acoustic Mode | Shear wave | Anisotropic |
| Operating Wavelength | 400-630nm | 400 - 650nm |
| Operating Frequency | 67-134MHz | 58 – 116MHz |
| Input Polarization | Linear, parallel to base | Linear, vertical with respect to base |
| Field of view | ≥6° | ± 2° |
| Spectral Resolution | <4nm @ 500nm | < 6nm at 525nm |
| Diffraction Efficiency | ＞90% | ＞ 90% (95% typical) |
| Beam Separation | ≥4° | ＞ 3º |
| RF Drive Power | Wavelength dependent ~2W | < 200mW / channel |
| Input Impedance | 50 ohms | 50 ohms |
| Acoustic Aperture | 5mm x 5mm | 6mm |
| Clear Aperture | 6mm x 8mm | |
| Temperature | 0°C<T <40°C | Conduction through base |
| Optical Surfaces | Output surface compensated for maximum pointing-stability of diffracted beam | AR coated |
| Model | TF527-245-6-3-GH18 | TF527-245-6-3-GH18 |
| Interactive Material | TeO2 | TeO2 |
| Acoustic Mode | Anisotropic | Anisotropic |
| Operating Wavelength | 405-650nm | 405-650nm |
| Operating Frequency | 60-120MHz | 60-120MHz |
| Input Polarization | Linear – Vertical with to base | Linear – Vertical with to base |
| Spectral Resolution | < 6nm @ 525nm | < 6nm @ 525nm |
| Beam Separation | ≥3° | ≥3° |
| RF Drive Power | 2W (16 Channels) | 2W (16 Channels) |
| Input Impedance | 50 ohms | 50 ohms |
| Active Aperture | 3 mm | 3 mm |
| Polarisation of diffracted order | Linear – Orthogonal to input | Linear – Orthogonal to input |
| Pointing-Stability of diffracted order | < ±0·01º | < ±0·01º |
| Cooling | TEC active cooling | Conduction through housing base |
| Model | TF640-325-2-12 | TF527-245-6-3-GH18 |
| Interactive Material | TeO2 | TeO2 |
| Operating Wavelength | 475-800nm | 600nm - 1μm |
| Operating Frequency | 65-130MHz | 42 - 80MHz |
| Input Polarization | Linear – Vertical with to base | Linear: Parallel to base |
| Polarization of diffracted order | Linear – Orthogonal to input | |
| Spectral Resolution | < 2nm @ 650nm | < 10nm at 800nm |
| Diffraction Efficiency | ＞90% | ＞ 90% |
| Field of View | ＞1.4% | ≥6º |
| Active Aperture | 12 x12 mm | 5 x 5mm |
| Clear Aperture | 13 x13 mm | 6 x 8mm |
| Optical Surfaces | Output face compensated for optimum pointing-stability of diffracted beam | Output face compensated for maximum pointing-stability of diffracted beam |
| RF Drive Power | 2W | Wavelength dependent ~2W Max |
| Model | TF850-500-8-6-GH58A | TF1650-1100-9-3-GH30A |
| Interactive Material | TeO2 | TeO2 (Anisotropic) |
| Operating Wavelength | 600 - 1100nm | 1100nm - 2200nm |
| Operating Frequency | 49 – 98MHz | 45 to 95MHz |
| Spectral Resolution | ~ 8nm at 850nm | 3nm at 1300nm, 4.5nm at 1550nm |
| Active Aperture | 6 mm | 3mm |
| Input Polarization | Linear, vertical with respect to base | Linear – Vertical wrt to base |
| Polarization of diffracted order | Linear, orthogonal to input (90º rotated) | Linear – Orthogonal to input |
| Pointing stability of diffracted order | < ± 0.01° typical | < ±0·01º |
| Field of View | ≥2º | |
| Beam Separation | ≥4º | ＞ 6º |
| Transmission | ＞95% | |
| Diffraction Efficiency | ＞90% | |
| RF Impedance | 50 ohms | 50Ω |
| RF Drive Power | <1.5W | 2W |
| Cooling | Conduction through base | Conduction through base |
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Office: 18 South Liu Fang Yuan Road,Sintec Industrial Park, Wuhan Hubei, 430205 PR China
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