Ring and axis mode lasing in quasi-stadium laser diodes with concentric end mirrors

Takehiro Fukushima, Takahisa Harayama, Peter Davis, Pablo O. Vaccaro, Takehiro Nishimura, Tahito Aida

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We fabricated quasi-stadium laser diodes whose resonators consist of two concentric curved end mirrors and two straight sidewall mirrors. We observed two lasing modes that correspond to different beam propagations along the cavity axis and along a ring trajectory, and different far-field patterns with wide angular separation. The modes can be selected by control of an electrode pattern. We also show that the far-field patterns numerically obtained by the extended Fox-Li mode calculation method are in good agreement with the experimental results.

Original languageEnglish
Pages (from-to)1430-1432
Number of pages3
JournalOptics Letters
Volume27
Issue number16
DOIs
Publication statusPublished - 2002 Aug 15
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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    Fukushima, T., Harayama, T., Davis, P., Vaccaro, P. O., Nishimura, T., & Aida, T. (2002). Ring and axis mode lasing in quasi-stadium laser diodes with concentric end mirrors. Optics Letters, 27(16), 1430-1432. https://doi.org/10.1364/OL.27.001430