An important component in optical systems which has to date been difficult to produce in a format compatible with optical fibre systems is the Fabry-Perot (FP) resonator. Although narrow-band devices have been reported with very high finesse, for applications in short pulse lasers and high speed communication system a response over several nanometres or more is required. The primary problem preventing the fabrication of wide-band filters using unchirped Bragg gratings written in photosensitive optical fibre is that the limited /spl Delta/n which may be achieved without loss limits the bandwidth of the device. In this paper we demonstrate a method to produce Fabry-Perot-like structures in which the bandwidth is limited primarily by the range of chirp that can be produced in the grating.
Wide-band Fabry-Perot-like filters in optical fibre
Proceedings of LEOS'94 ; 2 ; 144-145 vol.2
01.01.1994
164908 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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