Feature
Low noise, High bandwidth, High gain, Compact structure
Application
Distributed fiber sensing, Laser wind radar, Optical coherence tomography, Spectral measurement/ns-level optical pulse detection
400MHz Low Noise Balance Photodetector
Low noise
High bandwidth
High gain
Compact structure
Distributed fiber sensing (ψ-OTDR/ C-OTDR, DAS/DVS, BOTDA/ BOTDR)
Laser wind radar
Optical coherence tomography
Spectral measurement/ns-level optical pulse detection
Specification
Product model
MBD-400M-A
Unit
Detector type
InGaAs
Wavelength
800~1700
nm
Bandwidth
400M
Hz
Detector responsivity
0.95@1550nm
A/W
Transimpedance gain
10K
V/A
Saturated input optical power
420
uW
NEP
7（Typical）
pW/Sqrt(Hz)
Spectrum
50
Ω
Output impedance
>30
dB
Common mode rejection ratio
DC/AC
Output coupling method
5
V
Supply voltage
0.3(max)
A
Supply current
FC/APC
Optical input
SMA
RF output
62*47*25
mm
Dimension
Operating wavelength: 800-1700nm
Optical input：Optical fiber，Responsivity：0.9A/W@1550nm
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