Femtowatt Photoreceiver Series
The series FWPR-20 photoreceivers combine low noise Si or InGaAs PIN photodiodes with a specially designed transimpedance amplifier with extremely high gain of up to 1012 V/A and very low noise. This unique combination results in a photoreceiver with Femtowatt sensitivity due to its exceptional low NEP of 0.7 fW/√Hz.
Model |
FWPR-20-SI |
FWPR-20-IN |
|---|---|---|
| Photodiode | 1.1 x 1.1 mm2 Si | 0.5 mm Ø InGaAs PIN |
| Spectral Range | 320 ... 1100 nm | 900 ... 1700 nm |
| Bandwidth (−3 dB) | DC ... 20 Hz | DC ... 20 Hz |
| Rise/Fall Time (10 % - 90 %) | 18 ms | 18 ms |
| Transimpedance Gain | 1 x 1012 V/A | 1 x 1011 V/A |
| Max. Conversion Gain | 0.6 x 1012 V/W (@ 960 nm) | 0.95 x 1011 V/W (@ 1550 nm) |
| NEP (@ 1 Hz) | 0.7 fW/√Hz (@ 960 nm) | 7.5 fW/√Hz (@ 1550 nm) |
Output voltage ±10 V max (@ 100 kΩ load). Offset adjustable by potentiometer. Units with fiber optic input are optionally available. Output short-circuit protected. Threaded M4 and 8-32 mounting holes for use with standard mounting posts. Read the datasheet for more.