PMS1000 Polarimeter and Polarization Scrambler/Transformer

PMS1000 is a combination of the PM1000 polarimeter with the EPS1000 polarization scrambler/transformer.

Key features

  • All functionalities and data of PM1000 and EPS1000
  • Ideal for polarimetric characterization of devices under test (DUT) and dynamic tracking/synthesis of desired polarization states
  • Optical 2x2 switch can connect output of LiNbO3 polarization transformer directly to input of polarimeter, as a reference (REF). Insertion loss of each path is therby increased by ~0.5 dB (<1 dB).
  • Another optical 2x2 switch can exchange output of LiNbO3 polarization transformer and input of polarimeter, to determine DUT reciprocity by backward measurement.
  • Polarization scrambler can have optical and electrical feedback inputs and an algorithm which achieves and controls maximum or minimum intensity by setting polarization suitably.
  • With polarimeter, measured polarizations can be memorized and can subsequently be replicated/synthesized using error signal from the polarimeter, without intensity measurement.
  • Power consumption: ~15 W (+5 V from included power supply 100-240 V)
  • Available as 1 or 2 desktop units, 19'' 1U rackmount, and module cards
  • Switching between PM1000 and EPS1000 via control buttons, or parallel operation via USB


  • We repeatably measure connector PDL, for instance of FC/APC. Accuracy can be estimated this way:
  • A patchcord with fixed layout/bends served as REF. The same patchcord was tested >100 times as DUT, each time with different polarization transformations, due to different fiber layouts/bends:
    Measurement time Patchcord PDL
    5 us <0.03 dB
    100 us <0.01 dB
    10 ms <0.005 dB
    100 ms <0.004 dB
  • Polarizer PDL >60 dB can be measured reliably at the high side (method C here).
  • See this early video. Initial polarization search (voltage table generation) has meanwhile been accelerated to just a few seconds. It can be used for millions of measurements thereafter.
  • PMD <10 fs ... 10 ps can be measured with standard deviation ≤3 fs, see here. Upper limit is >1 ns with our standard LU1000.
  • See here for more results.
  • Ideal for optical frequency scans with laser having a known scan speed and trigger input or output. 8M measurements can be stored! We support you in the usage of your tunable laser!
  • Tracking example: PM1000 feeds error signal back to EPS1000 and causes it to generate a trajectory forth and back on an equatorial quarter-circle of the Poincare sphere.


PMS1000 for measurement of Mueller and Jones matrices and PMD of a device under test (DUT). Optional components are shaded. EPS1000 polarization scrambler/transformer and PM1000 polarimeter are also individually accessible.

LiNbO3 device of EPS1000 adjusts polarization for maximum/minimum transmission during a laser sweep. If there is also the polarimeter PM1000, DUT/PIC feedback can subsequently be removed and the polarimeter assures the dynamic setting of the needed polarization(s) during laser frequency sweeps.

PM1000 measures Mueller matrix of DUT or it supplies intensity feedback to EPS1000 for maximum/minimum transmission tracking. Once this is done, EPS1000 and PM1000 dynamically set desired DUT input polarization during laser frequency sweeps. User experiment can be connected at DUT output.