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  • Fabry-Perot (F-P) etalon (25GHz finesse: 7.5)

    Our Fabry-Perot etalons are free-space based Fabry-Perot etalons. They provide periodic wavelength comb transmission. They include 2-port transmission type, 3-port transmission/reflection type and 4-port transmission type. The 2-port type provides transmission spectrum, the 3-port type provides transmission and reflection spectrum, and the 4-port type provides a phase delay (when the same signal is input into the two input ports, there is a phase delay at the two output ports). Our company's Fabry-Perot etalons can cover the C-band wavelength, including single-mode and polarization-maintaining fibers. The free-space range (FSR) and finesse (F) of the etalons can be customized according to customer requirements. They are widely used in optical communications, fiber Bragg grating sensors, and tunable fiber lasers.

    Product features:Available in X, O, S, C, and L bands、 Compact passive package、 Low insertion loss、 SM or PM fiber pigtails、 High optical power handling

    Part Number:--

    Application area:Wavelength locker、 Wavelength division multiplexing telecommunication network、 Handheld spectrum analyzer、 Fiber Bragg grating sensing system、 Tunable filter laser、 Tunable filter

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    Main parameters
  • Core parameters
  • Dimension Drawing
  • General Parameters

    Parameters

    Parament

    Value

    Central wavelength

    1550nm(customizable)

    Spectral width

    40nm

    Typical FSR

    25, 50, 100GHz  (customizable)

    Typical FSR tolerance

    ±0.005GHz  for  100GHz  FSR

    Fineness

    2.5~40

    Insertion loss

    <0.8dB

    Polarization Dependent Loss(PDL)

    <0. 15dB

    Extinction Ratio(ER)

    >20dB  (PM Fiber)

    Return loss

    >45dB

    Phase delay

    0  to λ/4  (for  4-port  device  only)

    Maximum input power

    500mW (CW)

    Operating temperature

    10  to  50 °C

    Storage temperature

    -20  to  75 °C

    Dimension

    Ø5.5  x  35mm   (L)  or  40mm   (L)


     

    Spectral shape

     1.1.png

        2-Port Pigtail Etalon Spectral Shape

    1.2.png

    3-port pigtail etalon spectral shape

     


    Test the frequency discrimination characteristics of the standard at 1572nm

    Instruments used: 1550nm SLD, spectrometer, laser driver

    Circuit connection diagram

    3.3.png



    Spectrometer test results



    Ordering Information

    WLFE-A-B-C-D-E-F/G-H/I

    A:  Port type

    2: 2 Port

    3: 3 Port

    4: 4 Port

    B: Central wavelength

    1550: 1550nm

    C :  Free space range of etalon in GHz(FSR)

    25: 25GHz,

    100: 100GHz。

    D:  Fineness

    2.5 - 40

    E:  Fiber type

    SM:  Single mode Fiber

    PM:Polarization-mode Fiber

    F:  Pigtail cable diameter(um)

    0.9: 0.9um loose tube diameter

    G:  Pigtail length(m)

    1: 1m

    H/I:  Connector type

    FC/APC

    FC/PC


    Optional Configurations

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