Selective excitation of lowest-order transverse ring modes in a quasi-stadium laser diode

Takehiro Fukushima, Susumu Shinohara, Satoshi Sunada, Takahisa Harayama, Kenichi Arai, Koichiro Sakaguchi, Yasunori Tokuda

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

For a two-dimensional quasi-stadium laser diode, we demonstrate stable excitation of the lowest-order transverse ring modes by optimally designing the confocal end mirrors of the laser cavity based on extended Fox-Li mode calculations. We observe kink-free light output versus injection current characteristics and highly directional single-peak emissions corresponding to the diamond-shaped trajectory in the cavity. These results provide convincing evidence for selective excitation of the lowest-order transverse modes.

Original languageEnglish
Pages (from-to)4158-4161
Number of pages4
JournalOptics Letters
Volume38
Issue number20
DOIs
Publication statusPublished - 2013 Oct 15
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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