The 11HSP-FSx is a family of high speed optical signal detectors. These photodetectors are well suited for measuring optical pulses with durations of a few ns or longer and also for pulse shape monitoring. The 11HSP-FS1 can also be used for intensity noise measurements of CW lasers in the range of 10 Hz – 300 MHz, while the 11HSP-FS2 has a large sensitive area. Photodetectors can be integrated into a scheme for generating triggering pulses. Recommended external bias voltage is 24-42V. Our recommended power supply: Model: GE12I24-P1J 24 V; 0.625 A Dimensions: 70.7x40x38.8mm weight: 97g connector “2.1/5.5” .
Typical applications of High Speed Free-space photo detectors include:
- Pulse Form Measurements
- Pulse Duration Measurements
- Precise Synchronization
- Mode Beating Monitoring
- Heterodyne Measurements
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| Relative spectral sensitivity of 11HSP-FS1 | Relative spectral sensitivity of 11HSP-FS2 |
| Model | 11HSP-FS1 | 11HSP-FS2 |
| Wavelength range, nm | 400-1100 | 400-1100 |
| Rise time, ns | <1 | <10 |
| Spectral Sensitivity (λ=850 nm) | 0.62 A/W | 0.62 A/W |
| Pulse width (FWHM), ns | 1 | 10 |
| NEP, (W/√ Hz) | 2.9×10-14 | 4×10-14 |
| Capacitance VR=5OV, pF | 2.2 | 20 |
| Material | Si | Si |
| Dark current, nA | 1 | 10 |
| Sensitive area, mm2 | 1 | 7.5 |
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