Polarization Division Multiplexing Emulator PDME0 pages

Polarization Division
Multiplexing Emulator

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PDME

1 – Description
The Polarization Division Multiplexing Emulator (PDME) is a device that enables to control the delay between
both polarizations. The PDME can be used to emulate Polarization Division Multiplexing (PDM) signal by
launching a polarized signal with a given modulation format. At the output of the device the modulation
format will be emulated on both polarizations. For example, if QPSK is launched at the input, PDM-QPSK will
be emulated at the output. The PDME can also be used to emulate Polarization Mode Dispersion (PMD).
Several options are available on the PDME, such as ON/OFF switch, Variable Optical Attenuator, Variable
Optical Delay Line or long free space delay.

PDME (standard device)

PDME with VOA, VODL and SWITCH options

2 – Block diagram

delay ~ 10ns

input (PMF)

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output (SMF)

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Block diagram: PDME

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PDME

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