Coherent light generators – Particular active media – Semiconductor
Patent
1982-07-30
1985-07-30
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
350358, 350 9613, 372 20, 372 96, H01S 319
Patent
active
045326320
ABSTRACT:
A tunable semiconductor laser has an active layer, an insulating film made of a piezoelectric material and formed on a portion of the active layer, and an interdigital transducer provided on the insulating film for generating a surface acoustic wave. The laser oscillation wavelength is variable by varying the wavelength of the surface acoustic wave generated by the transducer. When adapted to produce surface acoustic waves of different frequencies at different locations, the transducer affords an enlarged tunable wavelength band. A plurality of Gunn diodes effecting oscillation at different frequencies are usable in place of the transducer.
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Matano Masaharu
Mori Kazuhiko
Ota Norihiro
Yamashita Tsukasa
Davie James W.
Omron Tateisi Electronics Co.
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