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PM Circuits

PLC Connections' staff have been pigtailing and packaging polarization maintaining (PM) circuits since 1993. Most PLC circuits possess sufficient birefringence to maintain polarization when bonded with PM fiber. We understand the difficulties and issues associated with PM circuits over temperature and humidity extremes, and can offer our customers the best PM circuit performance in the industry.

Specifications & Options

  • Active alignment of PM axis.
  • Available with any type of PM fiber (Panda style standard).
  • Any type of PLC circuit can be pigtailed with PM fibers.
  • ER measurements over customer-specified wavelength, temperature, and humidity.
  • ER specifications for PM arrays are >26 dB; typical ER after pigtailing an optical circuit with an input and output array is >22 dB.

Performance Details

Splitter Type Package Size Extinction Ratio
1x2 50 x 10 x 6 mm 28 dB
1x4 60 x 10 x 6 mm 26 dB
1x8 70 x 10 x 6 mm 24 dB
1x16 80 x 10 x 6 mm 22 dB
1x32 90 x 12 x 6 mm 20 dB
  • 2xn versions also available.
  • Package size is nominal; devices with connectors will be slightly longer.
  • For connectorized splitters, ER will be reduced by approximately 2 dB.

SM Circuits

PLC Connections offers a full line of 1xn single mode optical power splitters, in addition to other types of SM circuits. Many options are available for case size, fiber jacketing, and optical connectors.

Specifications & Options

  • Custom packaging and connectors available.
  • Ruggedized assemblies for extreme environments with high temperature epoxies and polyimide fibers.
  • Non-standard wavelengths available.
  • COTS splitters with standard 250 µm input fiber and fiber ribbon output.
  • Splitter circuits with fiber input and polished output facet (waveguide arrays) are for free-space launch.

Performance Details

Splitter Type 1x4 1x8 1x16 1x32
Insertion Loss (dB) < 7.5 < 10.5 < 13.5 < 17.0
Uniformity (dB) < 0.8 < 0.8 < 1.0 < 1.3
PDL (dB) < 0.2 < 0.2 < 0.2 < 0.2
  • Loss and uniformity are measured without connectors.
  • Typical insertion loss values are about 0.5 dB lower than the maximum shown in table.