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Wavelength combining fused-taper couplers with low sensitivity to polarisation for use with 1480 nm-pumped erbium-doped fibre amplifiers

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2 Author(s)
Minelly, J.D. ; Dept. of Electron. & Comp. Sci., Southampton Univ., UK ; Suyoma, M.

Fused-taper wavelength division multiplexing (WDM) couplers for use in combining the 1480 nm pump wavelength with the 1540 nm signal wavelength of erbium-doped fibre amplifier systems are reported. Output port isolation in excess of 15 dB has been achieved at the centre of each channel with very low polarisation sensitivity of <0.2 dB over a 30 nm range about the channel centres.

Published in:

Electronics Letters  (Volume:26 ,  Issue: 8 )