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

Xiaoming Ma | Zendy; Heming Wei | Zendy; Shuzhen Fan | Zendy; Abhishek Kottaram Amrithanath | Zendy; Jiaxiong Fang | Zendy; Sridhar Krishnaswamy | Zendy

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

Author(s) -

Xiaoming Ma,

Heming Wei,

Shuzhen Fan,

Abhishek Kottaram Amrithanath,

Jiaxiong Fang,

Sridhar Krishnaswamy

Publication year - 2020

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.397372

Subject(s) - whispering gallery wave , lasing threshold , optics , wavelength , resonator , materials science , optoelectronics , q factor , near and far field , whispering gallery , photonics , physics

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.

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