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Proceedings Paper

Oscillation wavelength shifts of diode lasers in a magnetic field
Author(s): Takashi Sato; Hidetoshi Kawashima; Tomoya Hoshi; Shigeki Yamamoto; Masashi Ohkawa; Takeo Maruyama; Minoru Shimba
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Paper Abstract

Research conducted in the early 1960s showed that the oscillation wavelength of a semiconductor laser shifted when exposed to a magnetic field. These experiments were conducted at very low temperatures and in very strong magnetic fields. We observed the wavelength shift toward a longer wavelength and the threshold current increase, in certain types of laser diodes in relatively weak magnetic fields at room temperature using recently developed Fabry-Perot type laser diodes. The shift mechanism, however, is not yet fully understood. We may assume that the presence of a magnetic field affects the current density in certain types of laser diodes, which in turn, affects the temperature around the active layer. This temperature change would then influence oscillation wavelength and threshold current. This means our measurement provides vital information about the current confinement characteristics of laser didoes.

Paper Details

Date Published: 1 June 1994
PDF: 9 pages
Proc. SPIE 2148, Laser Diode Technology and Applications VI, (1 June 1994); doi: 10.1117/12.176640
Show Author Affiliations
Takashi Sato, Niigata Univ. (Japan)
Hidetoshi Kawashima, Niigata Univ. (Japan)
Tomoya Hoshi, Niigata Univ. (Japan)
Shigeki Yamamoto, Niigata Univ. (United States)
Masashi Ohkawa, Niigata Univ. (Japan)
Takeo Maruyama, Niigata Univ. (Japan)
Minoru Shimba, Tokyo Denki Univ. (Japan)

Published in SPIE Proceedings Vol. 2148:
Laser Diode Technology and Applications VI
Pei Chuang Chen; Lawrence A. Johnson; Henryk Temkin, Editor(s)

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