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Er-doped fibre ring resonator applied to optical spectrum analyser with less than 100 kHz resolution

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2 Author(s)
H. Okamura ; NTT Transmission Syst. Labs., Kanagawa, Japan ; K. Iwatsuki

A fibre optic ring resonator is proposed which uses an Er-doped fibre amplifier to compensate for round-trip optical loss thereby enhancing resonator finesse. It is operated as a scanning-ring spectrum analyser and attains a resolution better than 100 kHz.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 12 )