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 nm to 1700 nm	900 nm to 1700 nm
Peak wavelength	1550 nm	1550 nm
Optical input power	0 µW to 50 µW	0 µW to 50 µW
Photodiode peak responsivity	0.90 A/W	0.90 A/W
Small signal bandwidth	1 Hz to 400 kHz at 3 dB	0 Hz to 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 (L setting, high impedance)	240 kV/A	240 kV/A
Transimpedance gain (L setting, 50 Ω)	120 kV/A	120 kV/A
Transimpedance gain (H setting, high impedance)	2400 kV/A	2400 kV/A
Transimpedance gain (H setting, 50 Ω)	1200 kV/A	1200 kV/A
Output impedance	50 Ω	50 Ω
Output noise	300 µV_RMS (1 Hz to 400 kHz)	300 µV_RMS (1 Hz to 400 kHz)
Output current max	20 mA	20 mA
Output dark offset	250 µV	250 µV
Output voltage (high impedance)	28 V_pp	28 V_pp
Output voltage (50 Ω)	2 V_pp	2 V_pp
Output slew rate (high impedance)	20 V/µs	20 V/µs
Output slew rate (50 Ω)	10 V/µs	10 V/µs
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 to 50 °C	0 °C to 50 °C