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High-gain balanced photodetector





Koheron PD10B is a balanced photodetector with 80 kV/A transimpedance gain and 8 MHz bandwidth. With a noise-equivalent power spectral density of only 0.8 pW / √Hz at 1 MHz, the PD10B is a perfect alternative to the PD100B balanced photodetector for those who require a higher gain.
Quantity | Price |
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Resources
Specifications
PD10B-80-DC | |
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Wavelength range | 900 - 1700 nm |
Small signal bandwidth | 0 - 8 MHz at 3 dB |
Coupling | DC |
Optical input power | 0 - 1.5 mW |
Photodiode peak responsivity | 0.90 A / W |
Power supply (positive) | 5.5 - 9 VDC |
Power supply (negative) | -9 to -5.5 VDC |
Transimpedance gain | 80 kV / A |
Output voltage range | ±3.6 V |
Noise Equivalent Power | 0.8 pW / √Hz (at 1 MHz) |
Output impedance | 50 Ω |
Outside Dimensions | 63 mm x 38 mm x 14 mm |
Photodiode connector | FC |
Photodiode active diameter | 300 µm |
Output | SMA |
Mechanical details | Compatible with M6 metric breadboards (25 mm spacing) |
Operating temperature | 0 °C - 50 °C |
Functional diagram

Characterization
Output power spectral density
The power spectral density of the PD10B-80-DC output was measured for different incident optical powers. The indicated power is the incident power per photodiode. Optical source is a Koheron LD101 laser at 1550 nm. Power spectrum is measured using the Koheron ALPHA250 FFT analyzer.
Frequency response
