Abstract
We obtained high-quality lowest-loss-mode lasing in quasi-stadium laser diodes having unstable resonators that consisted of two curved end mirrors and two straight sidewall mirrors. The laser diodes were fabricated by applying a reactive ion etching technique to a metal-organic chemical-vapor deposition–grown graded-index separate-confinement heterostructure single-quantum-well structure. The electrode contact area of the laser diodes was formed along unstable periodic orbits, along which the optical beams are localized. Highly directional fan-out beams corresponding to the numerically obtained lowest loss mode were emitted from the end mirrors under CW operation at room temperature.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
Takehiro Fukushima, Takahisa Harayama, Peter Davis, Pablo O. Vaccaro, Takehiro Nishimura, and Tahito Aida
Opt. Lett. 28(6) 408-410 (2003)
Takehiro Fukushima, Satoshi Sunada, Takahisa Harayama, Koichiro Sakaguchi, and Yasunori Tokuda
Appl. Opt. 51(14) 2515-2520 (2012)
Takehiro Fukushima, Takahisa Harayama, Peter Davis, Pablo O. Vaccaro, Takehiro Nishimura, and Tahito Aida
Opt. Lett. 27(16) 1430-1432 (2002)