NRT-2500 Polarization platform
NRT-2500

Polarization Control Platform

The Luna NRT-2500 is a versatile Polarization Control Platform, offering multiple built-in polarization control functions for optical transponder, device and sub-system development and manufacturing.

Luna NRT-2500 datasheet
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Product Description

Luna's industry-leading polarization control platform combines an integrated-optic Lithium Niobate (LiNbO3) waveguide polarization-controller device for super-fast polarization response driven by customizable digital signal processors and field programmable gate arrays (DSPs/FPGAs) for full functional flexibility. Together they enable Luna to provide an unprecedented seven polarization operations in one product.

  • Key Features
    • Paddles(Set Polarization) - Full polarization control by rotating any of the 5 electro-optic 1⁄4-wave plates to achieve the desired SOP setting with high accuracy, repeatability and resolution.
    • Scrambler-Uniform polarization scrambling with full Poincaré Sphere coverage and user-selectable Rayleigh distribution scrambling rates.
    • Depolarizer- A single-speed, ultrafast random scrambling mode to reduce the degree of polarization (DOP) of the measured signal or to introduce an extremely fast ΔSOP Impulses for lightning simulation and loop testbeds.
    • Spinner- Superfast SOP rotations/scrambling up to 940,000 rad/sec for characterizing the new generation coherent PM-QPSK transceivers.
    • Tracker- Fast, robust, and endless polarization tracking with no dropouts or ‘glitches’.
    • Acquirer- Acquirer is the automated ‘smart’ paddles mode to drive the SOP to maximize or minimize a feedback signal.
  • Specifications
    Insertion loss < 3dB
    PDL < 0.3 dB
    Optical return loss > 50dB
    Optical power handling <20 dBm
    Operating wavelength 1.55 microns (C- and L-bands)
    Optical connectors FC/UPC, FC/APC, SC
    Scrambling mode (SOP speed distribution) parameters2 rmode≡b0.5< 3,400 radians/second, with ≡1.25 rmode, rmax~3.76 rmode
    Enhanced spinner mode rate 75kHz (or >470,000 rad/sec for SOP aligned in S1-S2plane)
    SOP slew speed ~1.4 microseconds (up to 1,500,000 rad/sec)3

    Tracking speed (closed loop in tracking mode)

    		 ~20 microseconds4
    Power supply

    12 VDC from 100-240 VAC, 50-60 Hz wall AC-DC converter
    Communication interface Ethernet, RS-232
    Dimensions

    H=4.04" (102.6mm)
    W=10.12" (257mm)
    D= 12.32" (313mm)

    2For a Rayleigh distribution: rmodeis the statistical mode of the distribution, is the mean SOP change, and 99.9% of all SOP changes occur before rmax=3~3.76 rmode

    3For π/2 radian SOP transitions in 1μs.

    4This speed is feedback/update algorithm loop time based on reading A/DCs and DESP speed and updating polarization controller voltages. The feedback signal level and customization of the algorithm may slow system response.

    For full specifications, please download the data sheet.

  • Documentation

    新岭技术收购Luna创新s

    NRT-2500 User Manual

    NRT-2500 DLL User Manual

    NRT-2500 Datasheet

    NRT-2500 Datasheet (Chinese)

  • Applications
    • Optical Polarization Demultiplexing
    • PMD tolerance testing of transponders
    • Optical polarization demuxing
    • Testing electronic pol-demux
    • Optical PMD compensation
    • Coherent detection
    • Detector calibration
    • Ultrafast ∆SOP/∆t event generation
    • Power combining

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