Title :
Single-lobe symmetric coupled laser arrays
Author :
Chen, Kun-Long ; Wang, Shuhui
Author_Institution :
University of California, Department of Electrical Engineering & Computer Sciences and Electronic Research Laboratory, Berkeley, USA
Abstract :
We propose a new high-power laser in which an array of N lasers is coupled to another of N + 1 lasers through Y-junctions. The field distributions of the eigenmodes in the N-array are identical to those of the supermodes in the evanescently coupled laser array. The threshold gain for the lowest-order mode is much lower than the higher-order modes. This strong mode discrimination will enable very high-power single-lobe operation.
Keywords :
integrated optics; laser modes; optical waveguides; semiconductor junction lasers; eigenmodes; field distributions; high-power single-lobe operation; integrated optics; mode discrimination; optical waveguides; semiconductor lasers; symmetric coupled laser arrays; threshold gain;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850245
