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Wavelength manager covering the EDFA-band and capable of controlling hundreds of transmitters

: Kruger, U.; Kruger, K.; Batchellor, C.R.; Helmolt, C.; Nagengast, U.


Journal of optical communications 18 (1997), No.1, pp.2-4
ISSN: 0173-4911
Journal Article
Fraunhofer HHI ()
fibre lasers; frequency stability; light coherence; measurement errors; optical fibre networks; optical transmitters; wavelength division multiplexing; wavelength manager; edfa-band; transmitters; bbc demonstrator; race project r 2065; multichannel coherent-detection transmission system; observation range; resolution; absolute frequency accuracy; wdm-system; 1525 to 1565 nm

A wavelength manager has been developed for the BBC demonstrator of the RACE project R 2065. In this project a multichannel coherent-detection transmission system has been implemented as an overlay to an existing WDM-system. The wavelength manager has an observation range of more than 40 nm and a resolution of better than 1.5 GHz. The absolute frequency accuracy was measured to be better than +or-2.5 GHz between 1525 nm and 1565 nm.