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Polarisation independent tunable WDM filter based on a waveguide Bragg reflector and an optical amplifier

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8 Author(s)
U. Koren ; AT&T Bell Labs., Holmdel, NJ, USA ; B. I. Miller ; M. G. Young ; M. Chien
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The authors demonstrate a polarisation insensitive tunable reflective filter, with an integrated in-line optical amplifier providing a net fibre coupled gain for the device. The filter has a spectral width of 10 Å FWHM, with 1 Å deviation between the TE and TM input polarisations. The filter can be tuned over a spectral range of 95 Å. Tunable filter-amplifier devices can be useful for low noise WDM receivers, and for channel selection in WDM networks

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Electronics Letters  (Volume:31 ,  Issue: 25 )