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.

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 rmodeb0.5  < 3,400 radians/second, with <r> 1.25 rmode, rmax~3.76 rmode
    Enhanced spinner mode rate 75kHz (or >470,000 rad/sec for SOP aligned in S1-S2 plane)
    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)

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

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

    4  This 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
  • 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

Contact Sales to Learn More

Contact Sales Form

Related Products

PSY-201

Polarization Management and Emulation

PSY-201

Polarization Management and Emulation

Control and manage polarization in your optical system with our lossless fiber-squeezer based multifunctional polarization controllers for highest performance. Emulate all polarization impairment parameters including SOP, PMD, and PDL, with our complete line of emulation products for network and system characterization.
Polarization Control
Polarization Impairment Emulation