Temperature tunable whispering gallery modes laser based on a capillary tube

S. Zhang; T. Zhai

doi:10.1117/12.2589053

18 April 2021 Temperature tunable whispering gallery modes laser based on a capillary tube

S. Zhang, T. Zhai

Proceedings Volume 11772, Optical Sensors 2021; 1177214 (2021) https://doi.org/10.1117/12.2589053
Event: SPIE Optics + Optoelectronics, 2021, Online Only

Abstract

In this work, a temperature tunable capillary-based polymer whispering gallery modes laser was proposed. The WGM laser device was fabricated by filling the liquid polymer into the capillary tubes. Due to the thermal-optic effect of the polymer, the emission wavelength of the laser device can be continuously tuned from 601.4 nm to 581.9 nm with the varying temperature. Moreover, the suppression of modes was observed owing to the two-ring coupling effect in the capillary cavity. The easy-fabricated and very low-cost method of the temperature tunable WGM laser was verified which exhibits the potentiality for applications of photothermic and sensing devices.

Citation Download Citation

S. Zhang and T. Zhai "Temperature tunable whispering gallery modes laser based on a capillary tube", Proc. SPIE 11772, Optical Sensors 2021, 1177214 (18 April 2021); https://doi.org/10.1117/12.2589053

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