Realization of a narrowband single wavelength microring mirror

Amir Arbabi, Young Mo Kang, Ching Ying Lu, Edmond Chow, Lynford L. Goddard

Research output: Contribution to journalArticlepeer-review


We present a small footprint narrowband on-chip mirror made by integration of a distributed Bragg reflector (DBR) inside a microring resonator. The DBR covers half of the ring's circumference and is only reflective at one of the ring resonances. Design, fabrication, and characterization of the proposed device are presented. A single reflection peak with maximum power reflectivity of 92.3% and full width at half maximum of 0.4 nm is demonstrated. The device has potential application as an in-line mirror for low-threshold, narrow linewidth single mode laser diodes.

Original languageEnglish (US)
Article number091105
JournalApplied Physics Letters
Issue number9
StatePublished - Aug 29 2011

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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