Optical: systems and elements – Optical frequency converter – Dielectric optical waveguide type
Patent
1993-02-19
1994-04-05
Lee, John D.
Optical: systems and elements
Optical frequency converter
Dielectric optical waveguide type
359328, 372 22, 385122, G02F 135
Patent
active
053010590
ABSTRACT:
A short-wavelength light generating apparatus comprising a pumping semiconductor laser and an intra-cavity solid state laser, the intra-cavity solid state laser is excited in response to a laser light beam from the semiconductor laser to generate a short-wavelength light beam to an external. Also included in the apparatus is an external grating mirror having on its one surface a reflection type diffraction grating and placed between the semiconductor laser and the intra-cavity solid state laser. The external grating mirror reflects the laser light beam from the semiconductor laser to feedback a portion of the laser light beam to said semiconductor laser so that an oscillated wavelength of the semiconductor laser becomes within a wavelength acceptance of the intra-cavity solid state laser. Further, the external grating mirror supplies a portion of the laser light beam from the semiconductor laser to the intra-cavity solid state laser. This arrangement can output a stable harmonic wave with a high efficiency.
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IEE Proceedings J. Optoelectronics vol. 138, No. 5, Oct. 1991, Stevenage, GB, pp. 337-342, K. O. Nyairo et al. `Multichannel grating cavity (MGC) laser transmitter for wavelength division multiplexing applications`.
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Kato Makoto
Kitaoka Yasuo
Mizuuchi Kiminori
Sogawa Fumihiro
Yamamoto Kazuhisa
Lee John D.
Matsushita Electric - Industrial Co., Ltd.
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