Luna - NRT-2500 Polarization Control Platform

  • 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.

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.

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

More Product Information

Luna Innovations

Luna Innovations mission is to help advance the continuing increase in data transmission rates for the public & private communications network with high speed optical receivers and test products, while also leveraging our unique fiber optic sensing technology to improve the structural testing of new composite elements and components in new aircraft and automobiles. 

Luna Innovations Incorporated (NASDAQ: LUNA) was founded in 1990 and has been successful in taking innovative technologies from the applied research stage to product development and ultimately to the commercial market. In some cases, the successes led to the creation of independent businesses. We have created companies in our area of focus, sold some of them to industry leaders in their fields, raised private capital, formed joint ventures and entered into a number of licensing agreements.


Contact Details 

Luna Innovations Inc. 

301 1st Street, SW, Suite 200, Roanoke, VA 24011, USA

Phone: 540-769-8400 

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Test & Measurement

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Luna - NRT-2500 Polarization Control Platform