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InGaAs photobalanced detector MBD-400M-A
The high-speed low-noise photoelectric balanced detection module integrates two matched low-noise analog PIN detectors, a low-noise broadband transimpedance amplifier and an ultra-low noise power supply. It has the characteristics of high gain, high sensitivity, high bandwidth, low noise, high common mode rejection ratio, etc. It can effectively reduce the common mode noise of the signal and improve the signal-to-noise ratio of the system.
Product features:Low noise、 High gain、 High bandwidth、 Compact structure、 Built-in low noise isolated power supply
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Application area:Distributed fiber optic sensing、 Laser wind radar、 Optical coherence tomography、 Spectral measurement、 Nanosecond optical pulse detection
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Parameters
PN# | MBD-100M-A | MBD-200M-A | MBD-300M-A | MBD-400M-A | MBD-500M-A | MBD-800M-A | MBD-1G-A | MBD-1.5G-A | MBD-2G-A | MBD-2.5G-A | Unit |
Detector type | InGaAs | ||||||||||
Wavelength | 800~1700 | nm | |||||||||
Bandwidth | 100M | 200M | 300M | 400M | 500M | 800M | 1G | 1.5G | 2G | 2.5G | Hz |
Detector responsivity | 0.95 | 0.95 | 0.95 | 0.95 | 0.95 | 0.95 | 0.95 | 0.95 | 0.95 | 0.95 | A/W@1550nm |
Transimpedance gain | 30K | 30K | 30K | 10K | 5K | 30K | 30K | 30K | 15K | 15K | V/A |
Maximum input optical power | 140 | 140 | 140 | 420 | 840 | 140 | 140 | 140 | 280 | 280 | μW |
NEP | 5 | 5 | 5 | 7 | 7 | 9 | 9 | 9 | 9 | 9 | pW/Sqrt(Hz) |
Output impedance | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | Ω |
Output coupling mode | DC/AC | DC/AC | DC/AC | DC/AC | DC | AC | AC | AC | AC | DC | |
Supply voltage | 5 | 5 | 5 | 5 | 5 | 12 | 12 | 12 | 12 | 12 | V |
Supply current | 0.3(max) | 0.3(max) | 0.3(max) | 0.3(max) | 0.3(max) | 0.3(max) | 0.3(max) | 0.3(max) | 0.3(max) | 0.3(max) | A |
Optical input | FC/APC(Free space light optional) | ||||||||||
RF output | SMA | ||||||||||
Dimensions | 62*47*25 | 75*55*25 | mm | ||||||||
Test results:

Coherent Detection Distributed Fiber Optic Sensing:


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