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: Chapter in Book/Report/Conference proceedingConference contribution


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)
Title of host publicationCLEO
Subtitle of host publicationScience and Innovations, SI 2016
PublisherOptica Publishing Group (formerly OSA)
ISBN (Electronic)9781557528209
StatePublished - 2016
EventCLEO: Science and Innovations, SI 2016 - San Jose, United States
Duration: Jun 5 2016Jun 10 2016

Publication series

NameOptics InfoBase Conference Papers


ConferenceCLEO: Science and Innovations, SI 2016
Country/TerritoryUnited States
CitySan Jose

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials


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