Phys. Rev. B 72, 035424 (2005) - Random laser emission from a surface-corrugated waveguide

Random laser emission from a surface-corrugated waveguide

Qinghai Song, Lei Wang, Shumin Xiao, Xinchuan Zhou, Liying Liu, and Lei Xu

Phys. Rev. B 72, 035424 – Published 8 July 2005

Abstract

Here we report the random laser emission from surface corrugated waveguides. Discrete lasing modes, super narrow spectral linewidth, and the existence of lasing threshold behavior have been observed. Single mode emission was observed by controlling the gain length. The lasing modes are strongly polarized. A theoretical model was presented to explain the localization phenomena.

Received 26 January 2005

DOI:https://doi.org/10.1103/PhysRevB.72.035424

©2005 American Physical Society

Authors & Affiliations

Qinghai Song, Lei Wang, Shumin Xiao, Xinchuan Zhou, Liying Liu, and Lei Xu^*

State Key Lab for Advanced Photonic Materials and Devices, Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China

^*To whom all correspondence should be addressed. E-mail address: leixu@fudan.ac.cn

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Issue

Vol. 72, Iss. 3 — 15 July 2005

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