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Optical amplifier configurations with low polarisation sensitivity

: Grosskopf, G.; Ludwig, R.; Waarts, R.G.; Weber, H.G.

Electronics Letters 23 (1987), No.25, pp.1387-8
ISSN: 0013-5194
Journal Article
Fraunhofer HHI ()
amplifiers; light polarisation; optical communication equipment; semiconductor junction lasers; sensitivity; series arrangement; semiconductor lasers; low polarisation sensitivity; optical amplifiers; signal polarisation; parallel arrangement; polarisation-insensitive amplification; 80 GHz

The sensitivity of optical amplifiers to signal polarisation is avoided with use of configurations in which two amplifiers are combined. The authors describe experiments with a series and a parallel arrangement of two optical amplifiers. The experiments demonstrate a polarisation- insensitive amplification for both configurations over a spectral range of at least 80 GHz.