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    • 1550nm 25mW SLD Laser Diode

    An SLD (Superluminescent Diode/SLED) light source provides output power equivalent to that of a laser diode, a broad spectral width equivalent to that of an LED (Light-Emitting Diode), and low coherence. Thanks to its narrow active layer, similar to that of a laser diode, the light it emits is highly suitable for coupling into optical fibers, combining characteristics between those of LDs and LEDs. The 1.55μm SLD (Superluminescent Diode) module developed as an incoherent light source for various optical measurements. The device emits incoherent light with a broad spectral half-width and high output power from a polarization-maintaining fiber (PMF).

    Product features：Broad spectral output; Polarization-maintaining fiber coupling; Low coherence; High stability; Intelligent control

    Part Number：MP-SLD-1550-25-A81-14BF-PA

    Application area：Optical Coherence Tomography | Fiber-optic gyroscopes | Fiber-optic sensing | Device testing | Biological detection

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    Main parameters
  • Core parameters

  • Center Wavelength Output Power

    1550 nm 25 mW

  • Dimension Drawing
    • General Parameters

    General parameters

    Item

    Symbol

    Rating

    Unit

    SLD Forward Current

    IF

    600

    mA

    SLD Reverse Voltage

    VR

    2

    V

    PD Forward Current

    IFD

    10

    mA

    PD Reverse Voltage

    VRD

    10

    V

    Operating Case Temperature

    TC

    -20 to +75

    °C

    Storage Temperature

    Tstg

    -40 to +85

    °C

    Cooler Current

    IC

    2

    A

    Exceeding the absolute maximum rating may result in failure.


    Pin definition

     

     图片5.png

    图片4.png


     

    Optical and electrical characteristics

    Optical and electrical characteristics (TSLD=25°C, TC=25°C).

    Item

    Symbol

    Test condition

    Min.

    Typ.

    Max.

    Unit

    Forward Voltage

    Forward voltage

    VF

    Pf = 25mW



    2.4

    V

    Forward Current (BOL)

    Forward current (BOL).

    IF

    Pf = 25mW



    500

    mA

    Center Wavelength

    Center wavelength

    λC

    Pf = 25mW, -3dB

    1530

    1550

    1570

    nm

    Spectrum Bandwidth

    Spectral bandwidth

    Δλ

    Pf = 25mW, FWHM

    55

    60


    nm

    Spectral Ripple

    Spectral ripples

    M

    Pf = 25mW, res =   0.1nm



    0.6

    dB

    Monitor Current

    Monitor current

    Im

    Pf = 25mW, VRD = 5V

    400


    2000

    μA

    PD Dark Current

    PD dark current

    Id

    VRD = 5V



    0.1

    μA

    Tracking Error

    Tracking errors

    ΔPf

    Im = const, TC = -20 to 75°C



    0.5

    dB

    Cooler Voltage

    Cooler voltage

    Vc

    IF = *EOL, TC = 75°C



    3.5

    V

    Cooler Current

    Cooler current

    Ic

    IF = *EOL, TC = 75°C



    1.2

    A

    Thermistor Resistance

    Thermistors

    Rth

    TSLD = 25°C, B   = 3900±100K

    9.5

    10

    10.5

    kΩ

    Optical Isolation

    Optical isolation

    Ro

    λ = 1550nm, TSLD = 25°C


    30


    dB

    (Note) IF(EOL)=IF(BOL)×1.2


    Optional Configurations

    --

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  • Product title: 1550nm 25mW SLD Laser Diode
  • Product link: https://www.idealphotonics.com/product/detail/1340.html

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    • 10000 10k + Diodes sold worldwide
    • 30 30+ Invention patent
    • 10 10+ Advanced Optical Solutions

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