Power characteristics of planar index-antiguided waveguide lasers with transverse mode competition

We report comprehensive analysis of output characteristics of homogeneously broadened index-antiguided slab lasers with transverse mode competition. Robust single fundamental mode operation is achieved when the distributive modal loss due to index antiguiding dominates the output coupling loss. Maxi...

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Bibliographic Details
Main Authors: Chaofan Wang, Yuanye Liu, Lee W. Casperson, Tsing-Hua Her
Format: Article
Language:English
Published: AIP Publishing LLC 2016-12-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4971307
Description
Summary:We report comprehensive analysis of output characteristics of homogeneously broadened index-antiguided slab lasers with transverse mode competition. Robust single fundamental mode operation is achieved when the distributive modal loss due to index antiguiding dominates the output coupling loss. Maximal laser efficiency under single fundamental mode operation is investigated numerically for various combinations of single-pass gains and losses. We show analytically that an asymptotic limit of such efficiency exists that is solely determined by the loss ratio between the fundamental and 1st higher-order modes, which equals 66.7% for planar index antiguided lasers.
ISSN:2158-3226