1″-Photodetector

The 1″-Photodetector is a low-noise free-space photodetector with an 8 MHz bandwidth and a rise time of 42 ns. It is available in two versions: VIS-NIR (Osram SFH-203) or NIR (Osram SFH-FA), which blocks blocks ambient visible light up to 750 nm. The 1″-photodetector demonstrates exceptional performance in applications such as optical power control loops and power monitoring, with a noise floor of <3 pA/√Hz and a sensitivity of 31 V/mW. It can be easily mounted in a 30 mm cage system using a standard Ø 1″ cage plate.

Key features:

• Maximum laser power: 320 µW (340 µW for SFH203-FA)
• Sensitivity: 31 V/mW at 800 nm (29 V/mW at 850 nm for SFH203-FA)
• Bandwidth: 8 MHz
• Noise: < 3 pA/√Hz
• NEP: 5 pW/√Hz at 800 nm
• Power supply: ±16 mA idle at ±12.5 V to ±20 V