Two-dimensional analysis of self-sustained pulsation for narrow-stripe AlGaAs lasers

Masaaki Yuri*, James S. Harris, Toru Takayama, Osamu Imafuji, Hiroki Naito, Masahiro Kume, Kunio Itoh, Takaaki Baba

*この研究の対応する著者

研究成果: Article査読

9 被引用数 (Scopus)

抄録

Self-sustained pulsation in narrow-stripe geometry AlGaAs laser diodes is investigated numerically and experimentally. By taking account of the time-dependent two-dimensional optical field, carrier spreading in the cladding layers, and multilongitudinal modes, we succeeded in clarifying the mechanism for the pulsation. Fluctuation of the optical field plays an important role in forming saturable absorption. The numerical analysis clearly shows that our newly proposed real refractive index-guided structure is very suitable for a pulsation laser in which the optical field distribution and current spreading can be independently controlled. Furthermore, we show that the new structure gives much lower threshold current than that of a conventional loss-guided structure. These predicted advantages of the real refractive index-guided structure are verified experimentally with good agreement.

本文言語English
ページ(範囲)473-479
ページ数7
ジャーナルIEEE Journal on Selected Topics in Quantum Electronics
1
2
DOI
出版ステータスPublished - 1995 6
外部発表はい

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 原子分子物理学および光学

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