Dynamic noise response of DFB fibre lasers in presence of pump fluctuation

Qian Yujun, Poul Varming, Jørn Hedegård Povlsen, Vibeke Claudia Lauridsen

Research output: Contribution to journalJournal articleResearchpeer-review


A model is presented for relative intensity noise (RIN) in DFB fibre lasers which predicts the measured charateristics accurately. Calculation results imply that the RIN decreases rapidly with a stronger Bragg grating and higher pump power.It is shown that intrinsic loss gives servere limitations on the obtainable output power from a distributed feedback fibre laser and that the optimum coupling coeffcient will decrease when the cavity length is increased.
Original languageEnglish
JournalElectronics Letters
Issue number4
Pages (from-to)300-302
Publication statusPublished - 1999

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