Controlled multiwavelength emission using semiconductor ring laser with on-chip filtered optical feedback

M. Khoder, G. Verschaffelt, R.M. Nguimdo, X.J.M. Leijtens, J. Bolk, J. Danckaert

Research output: Contribution to journalArticleAcademicpeer-review

25 Citations (Scopus)
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Abstract

We report on an integrated approach to obtain multiwavelength emission from semiconductor ring lasers with filtered optical feedback. The filtered feedback is realized on-chip employing two arrayed-waveguide gratings to split/recombine light into different wavelength channels. Through experimental observations and numerical simulations, we find that the effective gain of the different modes is the key parameter which has to be balanced in order to achieve multiwavelength emission. This can be achieved by tuning the injection current in each amplifier
Original languageEnglish
Pages (from-to)2608-2610
Number of pages3
JournalOptics Letters
Volume38
Issue number14
DOIs
Publication statusPublished - 2013

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