Study of extra wide coherent optical combs generated by a QW-based integrated passively mode-locked ring laser

V. Moskalenko, J. Koelemeij, K.A. Williams, E.A.J.M. Bente

Research output: Contribution to journalArticleAcademicpeer-review

16 Citations (Scopus)
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Abstract

We present an investigation of an InP quantum-well-based integrated extended cavity passively mode-locked laser which shows extra broad frequency comb generation. The ring laser was characterized in frequency and time domains for a range of the current levels injected in the semiconductor optical amplifier. The study showed an increase of the bandwidth to over 40 nm at the -20 dB level. The coherence between the longitudinal modes in the wide comb is demonstrated by the characterization of a spectrally filtered signal in time and RF domains. The relative time delay across the optical comb was measured.

Original languageEnglish
Pages (from-to)1428-1431
Number of pages4
JournalOptics Letters
Volume42
Issue number7
DOIs
Publication statusPublished - 1 Apr 2017

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