High sensitivity photodetector

PRODUCTS > PHOTONICS > PHOTODETECTORS > HIGH SENSITIVITY PHOTODETECTOR

Koheron PD01 is an InGaAs transimpedance amplified photodetector with a Noise Equivalent Power (NEP) below 1 pW / √Hz between 100 Hz and 100 kHz. It accepts up to 50 µW of optical power and has a 3 dB bandwidth of 400 kHz. The AC-coupled output and the adjustable gain enable easy interfacing with analog-to-digital converters.

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Specifications

	PD01-AC-400	PD01-DC-400
Photodetection
Photodiode	InGaAs PIN photodiode	InGaAs PIN photodiode
Photodiode active diameter	300 µm	300 µm
Wavelength range	900 - 1700 nm	900 - 1700 nm
Peak wavelength	1550 nm	1550 nm
Optical input power	0 - 50 µW	0 - 50 µW
Photodiode peak responsivity	0.90 A / W	0.90 A / W
Small signal bandwidth	1 Hz - 400 kHz at 3 dB	0 Hz - 400 kHz at 3 dB
Coupling	AC	DC
Impulse response	1 µs (FWHM)	1 µs (FWHM)
Noise Equivalent Power	500 fW / √Hz (at 10 kHz)	500 fW / √Hz (at 10 kHz)
Transimpedance gain	240 kV / A (Hi-Z), 120 kV / A (50 Ω)	240 kV / A (Hi-Z), 120 kV / A (50 Ω)
High gain setting	2400 kV / A (Hi-Z), 1200 kV / A (50 Ω)	2400 kV / A (Hi-Z), 1200 kV / A (50 Ω)
Output impedance	50 Ω	50 Ω
Output noise	300 µV_RMS (1 Hz - 400 kHz)	300 µV_RMS (1 Hz - 400 kHz)
Output current max	20 mA	20 mA
Output dark offset	250 µV	250 µV
Output voltage	28 V_pp (Hi-Z), 2 V_pp (50 Ω)	28 V_pp (Hi-Z), 2 V_pp (50 Ω)
Output slew rate	20 V / µs (Hi-Z), 10 V / µs (50 Ω)	20 V / µs (Hi-Z), 10 V / µs (50 Ω)
Other
Positive supply voltage	+15 V	+15 V
Negative supply voltage	-15 V	-15 V
Outside Dimensions	38 mm x 54 mm x 14 mm	38 mm x 54 mm x 14 mm
Weight	15 g	15 g
Output	SMA	SMA
Photodiode connector	FC	FC
Mechanical details	Compatible with M6 metric breadboards (25 mm spacing)	Compatible with M6 metric breadboards (25 mm spacing)
Operating temperature	0 °C - 50 °C	0 °C - 50 °C