Inline depolarisers for low insertion loss

Edited by the Electronicstalk editorial team Aug 12, 2003

Intelmac's inline depolarisers are all-fibre Lyot type devices producing a very low degree of polarisation.

Several single-mode optical fibre applications benefit from the use of depolarised light.

Examples include suppression of polarisation hole burning in erbium-doped amplifiers, reduction of polarisation dependent loss (PDL) arising from fibre components such as couplers and WDMs, signal fading in fibre sensors and coherent detection systems.

Intelmac's inline depolarisers are all-fibre Lyot type devices producing a very low degree of polarisation (DOP), less than 2.5% for any random input state of polarisation (SOP).

They offer low insertion loss, typically 0.2dB, and residual extinction ratio less than 0.1dB.

For FWHM linewidths above 20nm the depolarisers offer a DOP less then 0.5% and residual extinction ratio below 0.01dB.