High dynamic range photodetector

PD10S - High dynamic range photodetector
PD10S - High dynamic range photodetector PD10S - Frequency response PD10S - Shot noise PD10S - Noise Equivalent Power

Koheron PD10S is a photodetector with 5 kV/A transimpedance gain and 50 MHz bandwidth. With a noise-equivalent power spectral density below 2 pW / √Hz at 1 MHz, and up to 8 V DC output voltage, the PD10S is a good alternative to the PD100-DC photodetector for high dynamic range applications such as power stabilization of CW lasers.

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Wavelength range 900 - 1700 nm
Small signal bandwidth 0 - 50 MHz at 3 dB
Coupling DC
Optical input power 0 - 1.3 mW
Photodiode peak responsivity 0.90 A / W
Power supply (positive) 10.5 - 13 VDC
Power supply (negative) -9 to -4 VDC
Transimpedance gain 5 kV / A
Output voltage range 0 - 8.2 V
Noise Equivalent Power 2 pW / √Hz (at 1 MHz)
Output impedance 50 Ω
Quiescent current 40 mA per power supply
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

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Functional diagram

PD10S-5-DC Functional diagram


Output voltage vs input optical power

PD10S-5-DC Output voltage vs input optical power

Output power spectral density

The power spectral density of the PD10S-5-DC output was measured for different incident optical powers. Optical source is a Koheron LD101 laser at 1550 nm. Power spectrum is measured using the Koheron ALPHA250 FFT analyzer.

PD10S-5-DC Output power spectral density

Frequency response

Small signal

PD10S-5-DC Frequency small response

Large signal

Measured with an average input optical power of 777 µW.

PD10S-5-DC Frequency response large signal

Noise equivalent power

PD10S-5-DC Noise Equivalent Power

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