Optimising microring resonator based optical frequency comb distillation for optical communications systems

Chawaphon Prayoonyong, Bill Corcoran

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2 Citations (Scopus)


Microring resonators (MRR) can be used as devices for filtering out broadband noise on optical frequency combs, in cases where significant amplification of a generated comb is required. While comb distillation has been demonstrated experimentally for optical communication systems, approaches to optimise device and sub-system parameters have not been explored. Here, we investigate how the performance of comb distillation through micro-ring filtering depends on device parameters. We also explore device parameter dependent performance when the comb and MRR are misaligned in line spacing. For the device platform we investigate, we find that the required optical signal-to-noise ratio (OSNR) of a comb line can be reduced by 16 dB, independent of modulation format, using a MRR with a resonance bandwidth of 100 MHz and coupling loss of 3 dB.

Original languageEnglish
Pages (from-to)17836-17847
Number of pages12
JournalOptics Express
Issue number11
Publication statusPublished - 9 May 2022

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