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    • 50GHz 850nm photodetector     


    The M-WPDM-50G-MM is a high-performance photodetector optimized for the 850 nm wavelength band, with a broad operating wavelength range of 750–1650 nm for high-speed RF-to-optical signal conversion.It features an integrated internal bias circuit and 50 Ω impedance matching, delivering a 3 dB bandwidth of ≥45 GHz and a responsivity of ≥0.3 A/W at 850 nm.The M-WPDM-50G-MM is ideal for 850 nm optical communications, high-speed RF/optical signal conversion, and advanced test and measurement systems.



    Product model


    Name Model Price
    50GHz 850nm photodetector   [PDF]  [RFQ]

    M-WPDM-50G-MM     		[Please inquire]
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    Parameter


    Features

    ● High bandwidth

    ● Broad spectral response

    ● Low dark current

    ● High responsivity

    Specifications

    Specifications

    Parameter

    Symbol

    Test condition

    Least value

    Representative value

    Crest value

    Unit

    Operating wavelength

    λ


    750


    1650

    nm

     

    Responsivity

     

    R

    λ=785 nm3

    0.3

    0.35


     

     

    A/W

    λ=850 nm3

    0.3

    0.35


    λ=1310 nm4

    0.7

    0.75




    λ=1550 nm4

    0.65

    0.7



    Dark current

    Id

    Vr   =+1.5 V


    20

    50

    nA

    3dB bandwidth 1

    BW

    Vr=   +1.5 V,PRF= - 10 dBm, P opt= 0 dBm

    40

    50


    GHz

    RF return loss

    S22

    Vr   =+1.5 V


    - 105 , -56


    dB

    Saturation optical power 2

    Psat

    Vr   =+1.5 V


    6


    dBm

    Note: Unless otherwise specified, the test temperature is 25 ± 3°

    1 Test at delivery with λ= 1550;

    2 Test at λ=1550 during delivery.

    3 Multi-mode OM3 optical fiber input

    4 Single-mode SMF optical fiber input

    5 Up to 30 GHz

    6 Up to 50 GHz


    Typical Test Curve

    850 nm photodetector1.png


    Absolute Maximum Ratings

    Parameter Name

    Symbol

    Nominal value

    Unit

    Luminous power

    Ps

    10

    dBm

    Bias voltage

    Vr

    6

    V

    Working temperature

    Top

    -40 ~ +70

    ℃

    Storage temperature

    Tstg

    -55 ~ +85

    ℃



    Dimensions and Pin definitions

    850 nm photodetector.png

    unit: mm


    Pin Name

    Interface Definition

    Remarks

    BIAS

    DC bias

    +1–+3   V; recommended: +1.5 V

    GND

    GND

    0V

    RF

    RF output

    1.85 mm coaxial connector (male)

    Light

    Optical input

    OM3   multimode fiber, FC/APC connector


    Precautions for Use

    ● Necessary ESD protection measures should be implemented to prevent static electricity- induced damage.

    ● Do not pull the tail fiber directly to avoid damaging the components.

    ● Keep the optical connector clean to prevent dust or other foreign particles from contaminating it and affecting its performance.


    Ordering Info

    M-

    W

    PD

    M

    -□

    -□



    Product Type

    PD:   Photodetector

    Package

    3dB   bandwidth;  50G refers to 50 GHz 850   detector

    Pigtail   fiber type: MM indicates OM3 multimode fiber.




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