Lowest-order axial and ring mode lasing in confocal quasi-stadium laser diodes

Takehiro Fukushima, Satoshi Sunada, Takahisa Harayama, Koichiro Sakaguchi, Yasunori Tokuda

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We investigated the lasing modes of quasi-stadium laser diodes that have confocal cavity geometries, with stripe electrode contacts formed either along the cavity axis or a diamond-shaped trajectory. It was clearly demonstrated thatbyusing narrow electrode contact patternsof 2 μm width, the lowest-order axial and ring modes were excited selectively. On the other hand, the second-lowest-order axial and ring modes were excited by using broad electrode patterns of 14 μm width. Experimentally obtained far-field patterns for lasers with broad and narrow electrode contact patterns agree very well with the simulation results obtained using an extended Fox-Li mode calculation method.

Original languageEnglish
Pages (from-to)2515-2520
Number of pages6
JournalApplied Optics
Volume51
Issue number14
DOIs
Publication statusPublished - 2012 May 10
Externally publishedYes

Fingerprint

axial modes
Stadiums
Semiconductor lasers
lasing
semiconductor lasers
Electrodes
electrodes
rings
cavities
far fields
Diamonds
diamonds
Trajectories
trajectories
Geometry
Lasers
geometry
lasers
simulation

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Lowest-order axial and ring mode lasing in confocal quasi-stadium laser diodes. / Fukushima, Takehiro; Sunada, Satoshi; Harayama, Takahisa; Sakaguchi, Koichiro; Tokuda, Yasunori.

In: Applied Optics, Vol. 51, No. 14, 10.05.2012, p. 2515-2520.

Research output: Contribution to journalArticle

Fukushima, T, Sunada, S, Harayama, T, Sakaguchi, K & Tokuda, Y 2012, 'Lowest-order axial and ring mode lasing in confocal quasi-stadium laser diodes', Applied Optics, vol. 51, no. 14, pp. 2515-2520. https://doi.org/10.1364/AO.51.002515
Fukushima, Takehiro ; Sunada, Satoshi ; Harayama, Takahisa ; Sakaguchi, Koichiro ; Tokuda, Yasunori. / Lowest-order axial and ring mode lasing in confocal quasi-stadium laser diodes. In: Applied Optics. 2012 ; Vol. 51, No. 14. pp. 2515-2520.
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