A new all-PANDA-fibre multi/demultiplexer, which consists of 1.65 m PANDA-fibre wavelength-selective region, fibreoptic polarising beam splitter and fibre polarisers, is demonstrated at 1.53 μm. To show the feasibility of the fibre-optic multi/demultiplexer in wavelength-division multiplexing (WDM), two different spectral components of the multimode laser (δλ = 13.8 Å) were successfully separated, with an extinction ratio of 23 dB and an insertion loss of 1.5 dB.
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Okamoto et al. (1986) studied this question.
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