Low Noise High Gain Amplifier FWPR-20-IN-FST Femtowatt Optical Receiver
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- Add:寶安區(qū)45區(qū)鴻都商務(wù)大廈C棟505室, Zip:
- Contact: 于沈洋
- Tel:13554997271
- Email:bnd015@szbonad.com
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Ultra-High Sensitivity and Extremely Low Noise Optical Receiver
The FWPR-20 series optical receiver combines low-noise Si or InGaAs photodiodes with a specially designed transimpedance amplifier that features extremely high gain up to 10^12 V/A and very low noise. This unique combination enables femtowatt-level sensitivity, thanks to its exceptionally low NEP of just 0.7 fW/√Hz. It can directly detect optical power as low as approximately 50 fW, and when combined with the optional FEMTO lock-in amplifier, even sub-femtowatt sensitivity can be achieved.
Replace Expensive PMTs or LN2-Cooled Infrared Detectors
The FEMTO FWPR-20 series optical receiver offers extremely high sensitivity, making it suitable to replace PMTs and cooled Ge photodiodes in various applications. There is no need for expensive high-voltage power supplies or cooling systems.
The FWPR-20-SI achieves high quantum efficiency similar to single-photon counting modules in the visible and near-infrared range. In applications with less stringent timing requirements, such as when the signal integration time of photon counters extends to tens of milliseconds or longer, the FWPR-20-SI optical receiver can achieve comparable signal-to-noise ratios.
For near-infrared spectral analysis, the InGaAs model FWPR-20-IN delivers results similar to those of much more expensive and complex systems based on liquid nitrogen-cooled germanium detectors and external amplifiers. Thanks to the integrated ultra-low noise, high-gain amplifier, the FWPR-20 series femtowatt optical receiver provides volt-level signals directly at the output.
| Model | FWPR-20-SI | FWPR-20-IN |
| Spectral Range | 320 ... 1100 nm | 900 ... 1700 nm |
| Bandwidth (-3 dB) | DC ... 20 Hz | DC ... 20 Hz |
| Detector Type | 1.1 x 1.1 mm2 Si | 0.5 mm ? InGaAs PIN |
| Rise Time (10% - 90%) | 18 ms | 18 ms |
| Transimpedance Gain | 1 x 10^12 V/A | 1 x 10^11 V/A |
| Max. Conversion Gain | 0.6 x 10^12 V/W (@ 960 nm) | 0.95 x 10^11 V/W (@ 1550 nm) |
| Min NEP | 0.7 fW/√Hz (@ 960 nm) | 7.5 fW/√Hz (@ 1550 nm) |
| Saturation Power | 18 pW (@ 960 nm) | 110 pW (@ 1550 nm) |
| Input | Free space, 25 mm ? Flange | |
| Output | BNC | |
| Output Voltage Range | ± 10 V @ > 1 MΩ Load | |
| Power Requirements | ±15 V, ±15 mA Typ. | |
M4 threads and 8-32 holes for mounting on standard posts. The 25 mm diameter flange is compatible with microbench systems. Offset adjustable via trim potentiometer. Optional fiber input. Output features short-circuit protection. Powered via 3-pin LEMO socket. Connector included. Optional PS-15 power supply available.
| Industry Category | Instruments & Meters |
|---|---|
| Product Category | |
| Brand: | FEMTO |
| Spec: | FWPR-20-IN-FST |
| Stock: | 200 |
| Manufacturer: | |
| Origin: | China / Guangdong / Shenshi |
