Just like their lower-frequency counterparts, these 10 MHz (205x) photoreceivers are the ideal optical front ends for systems requiring low-noise input. They have been engineered to eliminate most common sources of noise and drift, and have enough gain to pick up even very weak signals.



Features

10 MHz Versions of our Popular 200 kHz Photoreceivers

In response to customer requests, we’ve extended the bandwidth of our popular 200 kHz photoreceivers to 10 MHz to provide faster photodetection for our customers.

Adjustable High and Low Pass Filters

The DC/30 setting prevents your signal from going off-scale due to DC amplitude fluctuations, without attenuating fast signals. The high-pass filter can be adjusted to eliminate residual 60-Hz noise, and the independent low-pass filter can be set to dampen noisy signals.

Variable-gain Transimpedance Amplifier

Variable gain of up to 90 dB in 10-dB steps gives you a useful input range from 1 pW to 10 mW. For small signals requiring 80-dB or greater gain, the maximum bandwidth is reduced from 10 MHz to 1 MHz.

Silicon or InGaAs Versions

2002-2001_2011responsivity

Silicon models provide wavelength coverage from 300-1050 nm and InGaAs models provide coverage from 900-1700 nm.

Flexibility for a Wide Range of Applications

The flexibility and high performance of these photoreceivers means that they can be used in a wide range of applications. Use them as low-noise DC-coupled photoreceivers/preamplifiers in servo-control systems requiring near-zero phase shifts. Or use them in lock-in amplifier systems to take advantage of their shot-noise-limited performance and 90-dB maximum gain.

Specifications



2051-FC 2051-FS 2053-FC 2053-FS
Wavelength Range (nm) 300-1050 300-1050 900-1700 900-1700
Bandwidth (-3 dB) 10 MHz, 5 MHz, 150 kHz 10 MHz, 5 MHz, 150 kHz 10 MHz, 5 MHz, 150 kHz 10 MHz, 5 MHz, 150 kHz
Rise Time (ns) 80 80 80 80
Conversion Gain, Maximum (V/W) 9.2x106 9.2x106 18.4 x 106 18.4 x 106
Responsivity (Peak) () 0.5 A/W 0.5 A/W 1.0 A/W 1.0 A/W
Maximum Transimpedance Gain () 18.4x106 V/A 18.4x106 V/A 18.4x106 V/A 18.4x106 V/A
Output Impedance (Ω) 16 16 16 16
NEP (pW/√Hz) 0.68 0.68 0.34 0.34
Saturation Power CW 10 mW @ 850 nm 10 mW @ 850 nm 10 mW @ 1600 nm 10 mW @ 1600 nm
Damage Threshold 10 mW 10 mW 10 mW 10 mW
Optical Input FC Free Space FC Free Space
Detector Diameter (mm) 0.9 0.9 0.3 0.3
Detector Material Silicon Silicon InGaAs InGaAs
Output Connector SMA SMA SMA SMA
Power Requirements ±15 VDC or 9-V Battery ±15 VDC or 9-V Battery ±15 VDC or 9-V Battery ±15 VDC or 9-V Battery


Dimensions

205Xarc