Silicon photonic on-chip trace-gas spectroscopy of methane

Eric J. Zhang, Lionel Tombez, Jason S. Orcutt, Swetha Kamlapurkar, Gerard Wysocki, William M.J. Green

Research output: Contribution to journalConference articlepeer-review


We demonstrate a silicon photonic chip sensor for absorption spectroscopy of methane near λ=1651 nm. Noise analysis demonstrates 8.5×10-4 Hz-1/2 minimum fractional absorption and Gaussian noise performance with 20 ppmv detection limit at ~103 s.

Original languageEnglish (US)
Article numberSF2H.1
JournalOptics InfoBase Conference Papers
StatePublished - 2016
EventCLEO: Science and Innovations, SI 2016 - San Jose, United States
Duration: Jun 5 2016Jun 10 2016

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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