Multi-wavelength microresonator based on notched-elliptical polymer microdisks with unidirectional emission

Xiaoming Ma, Heming Wei*, Shuzhen Fan, Abhishek Kottaram Amrithanath, Jiaxiong Fang, Sridhar Krishnaswamy

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A three-dimensional notched-elliptical microdisk with a wavelength-size notch on the boundary is proposed as a multi-wavelength and unidirectional emission lasing source. The device contains multiple properly designed two-dimensional whispering gallery mode-based polymer notched microdisks with different dimensions for use as a multi-wavelength source. It can have a relatively high optical quality factor of 4000, unidirectional emission with low far-field divergence_4°, and the efficiency of emission is as high as 84.2%. The effect of the notch size on the far-field divergence is analyzed, and the multi-wavelength lasing performance is characterized, demonstrating that the resonator is robust and reliable. This work paves a unique but generic way for the design of compact multi-wavelength microlasers.

Original languageEnglish (US)
Pages (from-to)23928-23935
Number of pages8
JournalOptics Express
Issue number16
StatePublished - Aug 3 2020

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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