The UBD series ultra-low noise balance detector module is an upgraded product based on the original MBD series. Compared with the original MBD series, its background noise is significantly reduced under the same conditions of other parameters. Under the same bandwidth and gain conditions, its background noise is about one third of the MBD series module. Because of this, its sensitivity is higher and its signal to noise ratio is higher.
Product Model
UBD-100M-A
UBD-200M-A
UBD-300M-A
UBD-400M-A
UBD-500M-A
UBD-800M-A
UBD-1G-A
UBD-1.2G-A
UBD-1.5G-A
UBD-2G-A
UBD-2.5G-A
Unit
Detector Model
InGaAs
Wavelength
800~1700
nm
Bandwidth
100M
200M
300M
400M
500M
800M
1G
1.2G
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
0.95
A/W@1550nm
Transimpedance Gain
30K
30K
30K
20K
10K
30K
30K
30K
30K
30K
30K
V/W
Saturated Input Optical Power
140
140
140
210
420
140
140
140
140
140
140
μW
NEP
2.5
2.5
2.5
2.9
3.1
3.1
3.1
3.1
3.1
3.1
3.1
pW/Sqrt(Hz)
CMRR
>30
>30
>30
>30
>30
>30
>30
>30
>30
>30
>30
dB
Output Impedance
50
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
AC
AC
Supply Voltage
5
5
5
5
5
12
12
12
12
12
12
V
Supply Current
0.5(max)
0.5(max)
0.5(max)
0.5(max)
0.5(max)
0.5(max)
0.5(max)
0.5(max)
0.5(max)
0.5(max)
0.5(max)
A
Optical Input
FC/APC（or Free Space ）
Radio Frequency Output
SMA
Shape Size
65*70*25
80*90*25
A
Test Result
Bandwidth curve of 200MHz Ultra-Low Noise Balance Detector
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InGaAs Ultra-Low Noise Balance Photodetector.pdf
