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  • 400MHz Ultra Low Noise Balance Photodetector

    • 400MHz Ultra Low Noise Balance Photodetector     


    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


    Name Model Price
    400MHz Ultra Low Noise Balance Photodetector   [PDF]  [RFQ]

    UBD-400M-B
    (Stock NO. Not entered)     		[Please inquire]
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    Parameter



    Features

    ● Ultra Low Noise

    ● High Bandwidth

    ● High Transimpedance Gain

    Specifications

    Product Model

    UBD-400M-B

    Unit

    Detector Type

    Si

    Wavelength

    400~1100

    nm

    Bandwidth

    400M

    Hz

    Responsivity

    0.55@850nm

    A/W

    Transimpedance Gain

    20K

    V/W

    Saturated Input Optical Power

    360

    uW

    NEP

    5 (Typical)

    pW/Sqrt(Hz)

    Output Impedance

    50

    Q

    CMRR

    >30

    dB

    Output Coupling Mode

    AC


    Supply Voltage

    5

    V

    Supply Current

    0.5(max)

    A

    Optical Input

    FC/APC


    RF Output

    SMA


    Size

    65*70*25

    mm

    Instructions

    1. Supply Power 5V; Supply Current 0.5A(max).

    2. Input+/Input- are optical input； RF is radio frequency output.

    3. Please ensue that the end face is clean before connecting to the optical input.


    Bandwidth Curve

    20250313-103046.png

    Responsivity Curve

    20250313-103123.png



    Dimension

    Size (Unit: mm)

    20250313-103143.png


    20250313-103159.png

    Application

    ● Optical Fiber Sensing: it-OTDR/ C-OTDR, DAS/DVS, BOTDA/BOTDR

    ● Doppler Wind Lidar

    ● OCT

    ● Others



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