Ultra-Low Noise 2 kHz Photoreceiver with InGaAs-PIN Photodiode
Features
InGaAs-PIN detector, 0.5 mm active diameter
Spectral range 900 - 1700 nm
Ultra-low noise, NEP 10 fW/√Hz
Bandwidth DC to 2 kHz
Transimpedance gain switchable 1.0 x 109 V/A, 1.0 x 1010 V/A
Free-space input 1.035"-40 threaded, alternatively 25 mm diameter unthreaded
Easily convertible to fiber optic input (FC and FSMA) with optionally available screw-on adapters
UNC 8-32 and M4 tapped holes for mounting on standard posts with metric and imperial thread
Applications
Spectroscopy, reflection and transmission measurements
Highly sensitive optoelectronic measurements
Applications utilizing optical chopper modulation
Optical front-end for oscilloscopes, A/D converters and lock-in amplifiers
Spectral Response
Specifications
Test conditions
VS = ±15 V, TA = 25 °C, output load impedance 1 MΩ, warm-up 20 minutes (min. 10 minutes recommended)
Gain
Transimpedance gain
1.0 x 109 V/A, 1.0 x 1010 V/A (switchable) (@ output load ≥ 100 kΩ)
Gain accuracy
±1 % (electrical)
Conversion gain
1.1 x 109 V/W, 1.1 x 1010 V/W typ. (switchable) (@ 1580 nm, output load ≥ 100 kΩ)
Frequency Response
Lower cut-off frequency
DC
Upper cut-off frequency (–3 dB)
2 kHz
Rise/fall time (10 % - 90 %)
165 µs
Detector
Detector type
InGaAs-PIN photodiode
Active area
∅ 0.5 mm
Spectral range
900 - 1700 nm
Max. sensitivity
1.1 A/W @ 1580 nm typ.
Input
Input offset current (dark current)
0.6 pA typ.
Input offset current drift factor
2 / 10 °C
Input offset compensation range
±120 pA (adjustable by offset potentiometer)
Optical saturation power
9.1 nW (@ 109 V/A, 1580 nm) 0.91 nW (@ 1010 V/A, 1580 nm)
NEP
10 fW/√Hz (@ 1580 nm, 100 Hz)
Output
Output voltage range
–1.2 V … +10 V (@ ≥100 kΩ output load)
Max. output current
30 mA (short-circuit proof)
Output impedance
50 Ω (terminate with ≥100 kΩ)
Output noise
0.75 mVRMS (5 mVPP) typ. @ 109 V/A, no signal on detector
Power Supply
Supply voltage
±15 V (±14.5 ... 16.5 V)
Supply current
+32 mA / –25 mA (depends on operating conditions, recommended power supply capability minimum ±100 mA)
Case
Weight
207 g (0.46 lbs) PWPR-2K-IN-FS 220 g (0.49 lbs) PWPR-2K-IN-FST incl. coupler ring
Material
AlMg4.5Mn, nickel-plated
Temperature Range
Storage temperature
–30 °C ... +85 °C
Operating temperature
0 °C ... +50 °C
Absolute Maximum Ratings
Optical input power (CW) 10 mW
Power supply voltage
±20 V
Connectors
Input
PWPR-2K-IN-FS 25 mm dia. unthreaded flange for free space applications
PWPR-2K-IN-FST 1.035"-40 threaded flange for free space applications and for use with fiber connector adapters PRA-FC and PRA-FSMA
fixed fiber optic input available as customized unit
Output
BNC jack (female)
Power supply
Lemo® series 1S, 3-pin fixed socket (mating plug type: FFA.1S.303.CLAC52)
Pin 1: +15 V
Pin 2: –15 V
Pin 3: GND
Scope of Delivery
PWPR-2K-IN, internally threaded coupler ring (“FST” version only), Lemo®3-pin connector, datasheet, transport package
Dimensions
PWPR-2K-IN-FS (25 mm dia. unthreaded free space input)
PWPR-2K-IN-FST (1.035"-40 threaded free space input)
商品属性 [活跃直径] 0.5 mm [光谱范围] 900 - 1700 nm [NEP] 10 fW/√Hz [带宽] DC to 2 kHz