------ The KY-BPRM series
Key Features
lSpectral Range 400-1700nm
lVarious 3dB band-width options
lWith output monitoring
lRise time Min.<0.2ns
lCMRR>30dB
lLow noise
lSingle power supply DC 12V
lDimensions 47x42x20mm
lCan be customized
Applications
lNanosecond optical pulse detection
lLaser radar
lBrillouin Optical Fiber Sensing System
lf-OTDR
lOCT(Optical coherent tomography)
Options
lPhotosensitive surface
lBand-width
lGain
lOutput Coupling
Description
The KY-BPRM series balanced photoreceiver integrates two matched high linearity analog PIN detector and low noise broadband transimpedance amplifier, with high gain, high sensitivity, DC coupling output and high common-mode rejection ratio(CMRR). This can effectively reduce the common mode noise of the input light and improve the signal to noise ratio of the system. The module is powered by positive 12V, and the input optical interface is optional for optic fiber or space incidence. The electric signal is SMA output, mainly used in nanosecond optical pulse detection, laser radar, optical coherent tomography,fiber optic sensing systems and other fields.
Block diagram
Performance Parameters
Si Balanced Photoreceiver |
PN | KY-BPRM-BW-S-FA/FS |
Detector type | Si / PIN |
Input | Free Space or FC/APC |
Spectral range | 400-1100nm |
Peak responsivity | 0.5 A/W @ 905 nm |
Detector diameter | 1.2mm | 0.5 mm |
CMRR | >25 dB (typ. >30 dB) |
|
Band-width(3dB) | RF OUTPUT | 10MHz | 350MHz |
Peak Gain@ High resistance | 26x103V/W | 5x 103 V/W |
Rise time | 30ns | 1ns |
Saturated optical power | Unbalanced | 115uW | 0.76mW |
Balanced | 5mW |
Coupling | DC/AC |
Impedance | 50W |
Equivalent noise power NEP | 7.0 pW/√Hz | 42.7 pW/√Hz |
Total output noise voltage | <0.3mVRMS | <4mVRMS |
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 | 10MHz | 75MHz | 200MHz | 500MHz | 30K~1.5GHz |
Peak Gain @High resistance | 51x 103 V/W | 250x 103 V/W | 40 x 103 V/W | 10x 103 V/W | 2x 103 V/W |
Rise time | 30ns | 4.5ns | 1.8ns | 0.7ns | 0.2ns |
CMRR | >30 dB | >30 dB | >25 dB |
Saturated optical power | Unbalanced | 58.8uW | 12.5uW | 97.5uW | 0.38mW | 1mW |
Balanced | 5mW |
Coupling | DC | AC only |
Impedance | 50W |
Equivalent noise power NEP | 4.1pW/√Hz | 6.9pW/√Hz | 11.2pW/√Hz | 17.9 pW/√Hz | 12.9pW/√Hz |
Total output noise voltage | <0.3mVRMS | <15mVRMS | <6.3mVRMS | <4mVRMS | <1mVRMS |
InGaAs Balanced Photoreceiver (Free Space Input) |
PN | KY-BPRM-BW-I-FS |
Detector type | InGaAs / PIN |
Input | Free Space |
Spectral range | 800-1700nm |
Peak responsivity | 0.9A/W @ 1550 nm |
Detector diameter | 500mm |
Band-width(3dB) | RF OUTPUT | 75MHz |
Peak Gain@ High resistance | 10x 103 V/W |
Rise time | 4.7ns |
CMRR | >30 dB |
Saturated optical power | Unbalanced | 0.38mW |
Balanced | 5mW |
Coupling | DC |
Impedance | 50W |
Equivalent noise power NEP | 54.4 pW/√Hz |
Total output noise voltage | < 2.1 mVRMS |
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General Parameters
Parameters | Typ. | Remarks |
RF OUT side | Output electrical signal interface | SMA(Female) |
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Output DC offset | +/-3mV | No input |
Maximum output voltage | ±3.8V | High resistance |
±1.9V | 50W |
Power interface | Aviation plug |
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Powered by | DC 12V | Operating Voltage |
<100mA | Working current |
Light damage threshold | 10mW | CW or Peak power |
Operating temperature | -20~65°C |
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Characteristic Curve
Si Spectral response
InGaAs Spectral response
Dimensions(Unit:mm)
optical fiber interface
Space optical interface (with adapter plate for M4 optical post)
Ordering Information
KY – BPRM - BW- S/I - FA/FS - XX
BW---Band-width
S/I --- S: Si; I: InGaAs
FA/FS --- FA: FC/APC FS: Free Space
XX --- Other requirements