Coherent light generators – Particular beam control device – Nonlinear device
Patent
1995-03-16
1997-04-01
Scott, Jr., Leon
Coherent light generators
Particular beam control device
Nonlinear device
372 92, 372 97, 372 27, 372 5, 372 64, 372 19, 372 98, 372101, 372 96, 372102, 372 20, H01S 310
Patent
active
056174357
ABSTRACT:
A semiconductor laser emits semiconductor laser light with TM-mode oscillation. The emitted semiconductor laser light is collimated by a first collimating lens, passes through a Brewster plate that is arranged so that the direction of Brewster plane's p-polarized light is in alignment with the direction of polarization of the emitted semiconductor laser light, and is coupled to an incident portion of a wavelength-conversion waveguide by means of a focusing lens. While being guided through the waveguide, the emitted semiconductor laser light is converted into second-harmonic light by means of a polarization inversion region. Semiconductor laser light emanating from an emitting portion of the waveguide reflects from an output mirror towards a diffraction grating, for modulation in wavelength. Second-harmonic light emanating from the emitting portion of the waveguide is outputted from the output mirror.
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Risk et al; "Generationm of 425-nm light by waveguide frequency doubling of a GaAlAs laser diode in an extended cavity configuration":Proc. Of Appl. Phys. Lett. 63(23),Dec. 6, 1993,pp. 3134-3136.1993 American Institute Of Phyusics.
W.P. Risk et al., "Generation of 425-nm light by waveguide frequency doubling of a GaAIAs laser diode in an extended-cavity configuration": proc. of Appl. Phys. Lett. 63(23), Dec. 6, 1993, pp. 3134-3136, 1993 American Institute of Physics.
Kume Masahiro
Nagai Hideo
Takayama Toru
Yoshikawa Akio
Jr. Leon Scott
Matsushita Electronics Corporation
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