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Zero-loss polarisation-independent four-channel tunable optical filter in InGaAsP/InP

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3 Author(s)
Weber, J.-P. ; Ericsson Components AB, Stockholm ; Stoltz, B. ; Dasler, M.

A multi-grading filter with polarisation-independent channel positions and integrated with two amplifiers has been fabricated in InGaAsP/InP. The four tunable Bragg gratings allow the selection of one out of four channels in a WDM system at 1.55 μm. A packaged device with no fibre-to-fibre loss and worst case crosstalk below -16 dB has been fabricated

Published in:

Electronics Letters  (Volume:31 ,  Issue: 3 )