High speed and low noise balance photo detector consists of two matched ultra-low noise analog photodiodes, a low noise broadband transimpedance amplifier and Ultra Low Noise power supply. Due to high gain, high sensitivity, high bandwidth, low noise, and high common mode rejection ratio, the high speed and low noise balance photo detector can effectively reduce the commonmode noise, and improve the signal-to-noise ratio of the system.
Product Model
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 Model
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
Saturated 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)
CMRR
>30
>30
>30
>30
>30
>30
>30
>30
>30
>30
dB
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（or Free Space ）
Radio Frequency Output
SMA
Shape Size
62*47*25
75*55*25
mm
Test Result
Optical path diagram of coherent detection
Bandwidth curve of 300MHz Balance detector
Demodulation phase of PZT vibration point on optical fiber （1KHz）
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InGaAs Balance Photodetector.pdf
