Key Features
lSpectral Range 800-1700nm
lVarious 3dB band-width options
lLarge dynamic range
lUltra low noise
lCMRR>30dB
lSingle power supply DC 12V
lDimensions 86x47x36mm
lCan be customized
Applications
lLaser radar
lBrillouin Optical Fiber Sensing System
lf-OTDR
lOptical heterodyne detection system
Options
lBand-width
lGain
lOutput Coupling
lChannels
Description
The KY-BPRM-LN series large dynamic range ultra-low noise balanced photoreceiver is specially developed for long-distance measurement applications in optical heterodyne detection systems, each balanced photoreceiver integrates two matched high linearity analog PIN detectors and an ultra low noise wideband transimpedance amplifier with large dynamic range, ultra-low noise, and high common-mode rejection ratio(CMRR). This can effectively reduce the common mode noise of the input light and improve the measurement range and signal to noise ratio of the system. The module is powered by positive 12V, and the input optical interface is fiber incidence. The electric signal is SMA output, mainly used in laser radar, optical fiber sensing systems and other fields.
Performance Parameters
InGaAs Balanced Photoreceiver (Fiber Input) |
PN | KY-BPRM-BW-I--FA |
Detector type | InGaAs / PIN |
Input | FC/APC |
Spectral range | 800-1700nm |
Peak responsivity | 0.9A/W @ 1550 nm |
Detector diameter | 75mm |
Band-width(3dB) | RF OUTPUT | 20MHz | 50MHz | 100MHz |
Peak Gain @High resistance | 50x 103 V/W | 30x 103 V/W | 5 x 103 V/W |
Rise time | 17ns | 7ns | 3.5ns |
CMRR | >30 dB |
Saturated optical power | Unbalanced | 76uW | 127uW | 1.6mW |
Balanced | 5mW |
Coupling | DC |
Impedance | 50W |
Equivalent noise power NEP | 3.7pW/√Hz | 7.9pW/√Hz | 6.7pW/√Hz |
Total output noise voltage | 0.8mVRMS | 1.5mVRMS | 0.3mVRMS |
Coupling | 3.8V | 3.8V | 8V |
General Parameters
Parameters | Typ. | Remarks |
RF OUT side | Output electrical signal interface | SMA(Female) |
|
Output DC offset | +/-3mV | No input |
Power interface | 2P Aviation plug |
|
Powered by | DC 12V | Operating Voltage |
<100mA | Working current |
Light damage threshold | 10mW | CW or Peak power |
Dimensions | 47x43x20mm |
|
Operating temperature | -20~65°C |
|
Dimensions(Unit:mm)
![Large Dynamic Range Ultra Low Noise Balanced Photoreceiver]( "Large Dynamic Range Ultra Low Noise Balanced Photoreceiver")
Ordering Information
KY – BPRM - BW- S/I - FA/FS - LN
BW—Bandwidth
S/I --- S: Si; I: InGaAs
FA/FS --- FA: FC/APC FS: Free Space