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

Application area：Distributed fiber optic sensing、 Laser wind radar、 Optical coherence tomography、 Spectral measurement、 Nanosecond optical pulse detection

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Part Number

MBD-400M-A

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General Parameters

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Dimensional Drawing

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	624725					755525					mm

Test results:

Coherent Detection Distributed Fiber Optic Sensing:

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