Abstract
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 language | English (US) |
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Pages (from-to) | 23928-23935 |
Number of pages | 8 |
Journal | Optics Express |
Volume | 28 |
Issue number | 16 |
DOIs | |
State | Published - Aug 3 2020 |
Funding
Shanghai Young Oriental Scholar Project (QD2019); Higher Education Discipline Innovation Project (D20031); Natural Science Foundation of Shandong Province (ZR2017MF038).
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics