Abstract

We present preliminary data which show that it is possible to prevent longitudinal mode hops in a unidirectional erbium ring fibre laser by including an all fibre etalon formed from chirped fibre Bragg reflectors. A reduction in the relative intensity noise of ∼ 10 dB is observed when the laser is frequency stabilised. A resolution limited linewidth of 170 kHz is observed from the laser.

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