
The 2 µm InGaAs balanced photodetector covers the 800–2200 nm wavelength range.The balanced detection module integrates two matched low-noise analog PIN photodiodes, a low-noise wideband transimpedance amplifier, and an ultra-low-noise power supply.It features high gain, high sensitivity, wide bandwidth, low noise, and a high common-mode rejection ratio, effectively reducing common-mode noise in the signal and improving the system's signal-to-noise ratio.
Product model
| 2GHz 2µm InGaAs Balance Photodetector |
MBD-2G-A22 | Response wavelength 800-2200nm, Bandwidth 2GHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 2GHz |
| 1.5GHz 2µm InGaAs Balance Photodetector |
MBD-1.5G-A22 | Response wavelength 800-2200nm, Bandwidth 1.5GHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 1.5GHz |
| 1GHz 2µm InGaAs Balance Photodetector |
MBD-1G-A22 | Response wavelength 800-2200nm, Bandwidth 1GHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 1GHz |
| 500MHz 2µm InGaAs Balance Photodetector |
MBD-500M-A22 | Response wavelength 800-2200nm, Bandwidth 500MHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 500MHz |
| 400MHz 2µm InGaAs Balance Photodetector |
MBD-400M-A22 | Response wavelength 800-2200nm, Bandwidth 400MHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 400MHz |
| 300MHz 2µm InGaAs Balance Photodetector |
MBD-300M-A22 | Response wavelength 800-2200nm, Bandwidth 300MHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 300MHz |
| 200MHz 2µm InGaAs Balance Photodetector |
MBD-200M-A22 | Response wavelength 800-2200nm, Bandwidth 200MHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 200MHz |
| 100MHz 2µm InGaAs Balance Photodetector |
MBD-100M-A22 | Response wavelength 800-2200nm, Bandwidth 100MHz, Material InGaAs, Detector response 0.95A/W@1550nm, Optical Input Free Space | Response wavelength: 800-2200nm Bandwidth: 100MHz |
Parameter
Features
● Low noise
● High gain
● Wide bandwidth
● Compact structure
● Integrated low-noise isolated power supply
Specifications
Product Model | MBD-100M -A22 | MBD-200M -A22 | MBD-300M -A22 | MBD-400M -A22 | MBD-500M -A22 | MBD-800M -A22 | MBD-1G- A22 | MBD-1.5G -A22 | MBD-2G- A22 | Unit |
Detector Type | InGaAs |
|
Wavelength | 800~2200 | nm |
Bandwidth | 100M | 200M | 300M | 400M | 500M | 800M | 1G | 1.5G | 2G | Hz |
Detector Responsivity | 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 | V/A |
Maximum input optical power | 140 | 140 | 140 | 420 | 840 | 140 | 140 | 140 | 280 | μW |
NEP | 9 | 9 | 9 | 11 | 11 | 14 | 14 | 14 | 14 | pW/Sqrt(Hz) |
CMRR | >25 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | dB |
Output Impedance | 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 |
|
Supply Voltage | 5 | 5 | 5 | 5 | 5 | 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) | A |
Optical input | FC/APC(Free Space optional) |
|
Radio Frequency Output | SMA |
|
Dimensions | 62*47*25 | 75*55*25 | mm |
Test Result

Coherent detection distributed fiber optic sensing

300MHz balanced detector bandwidth curve

2µm detector response curve

Responsibility VS Wavelength
Package Size

Application
● Distributed fiber sensing
● Laser wind LIDAR
● Optical coherence tomography (OCT)
● Spectral measurement
● Nanosecond-level optical pulse detection
The 2 µm InGaAs balanced photodetector covers the 800–2200 nm wavelength range.The balanced detection module integrates two matched low-noise analog PIN photodiodes, a low-noise wideband transimpedance amplifier, and an ultra-low-noise power supply.It features high gain, high sensitivity, wide bandwidth, low noise, and a high common-mode rejection ratio, effectively reducing common-mode noise in the signal and improving the system's signal-to-noise ratio.
Product model
MBD-2G-A22Response wavelength: 800-2200nm
Bandwidth: 2GHz
MBD-1.5G-A22Response wavelength: 800-2200nm
Bandwidth: 1.5GHz
MBD-1G-A22Response wavelength: 800-2200nm
Bandwidth: 1GHz
MBD-500M-A22Response wavelength: 800-2200nm
Bandwidth: 500MHz
MBD-400M-A22Response wavelength: 800-2200nm
Bandwidth: 400MHz
MBD-300M-A22Response wavelength: 800-2200nm
Bandwidth: 300MHz
MBD-200M-A22Response wavelength: 800-2200nm
Bandwidth: 200MHz
MBD-100M-A22Response wavelength: 800-2200nm
Bandwidth: 100MHz
Parameter
● Low noise
● High gain
● Wide bandwidth
● Compact structure
● Integrated low-noise isolated power supply
Product Model
MBD-100M
-A22
MBD-200M
-A22
MBD-300M
-A22
MBD-400M
-A22
MBD-500M
-A22
MBD-800M
-A22
MBD-1G-
A22
MBD-1.5G
-A22
MBD-2G-
A22
Unit
Detector Type
InGaAs
Wavelength
800~2200
nm
Bandwidth
100M
200M
300M
400M
500M
800M
1G
1.5G
2G
Hz
Detector Responsivity
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
V/A
Maximum input optical power
140
140
140
420
840
140
140
140
280
μW
NEP
9
9
9
11
11
14
14
14
14
pW/Sqrt(Hz)
CMRR
>25
>25
>25
>25
>25
>25
>25
>25
>25
dB
Output Impedance
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
Supply Voltage
5
5
5
5
5
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)
A
Optical input
FC/APC(Free Space optional)
Radio Frequency Output
SMA
Dimensions
62*47*25
75*55*25
mm
Test Result
Coherent detection distributed fiber optic sensing
300MHz balanced detector bandwidth curve
2µm detector response curve
Responsibility VS Wavelength
● Distributed fiber sensing
● Laser wind LIDAR
● Optical coherence tomography (OCT)
● Spectral measurement
● Nanosecond-level optical pulse detection