Optical waveguides – Having nonlinear property
Patent
1989-05-19
1992-06-02
Lee, John D.
Optical waveguides
Having nonlinear property
359328, 359332, G02F 137
Patent
active
051194589
ABSTRACT:
A fibre-type light conversion device for converting the wavelength of an incident light comprises a core and a cladding layer provided around the core. An end surface of the device from which the light beam radiates is made conical, so that the second harmonic wave is collimated without using any additional optical element such as a conical prism. The end surface of the device is formed by a process in which the end surface of the device is polished with a central axis of the device being held at a predetermined angle with respect to a polishing surface while the device is rotated about the central axis.
REFERENCES:
patent: 3617109 (1971-11-01), Tien
patent: 4125768 (1978-11-01), Jackson et al.
patent: 4756598 (1988-07-01), Gerbi et al.
patent: 4830447 (1989-05-01), Kamiyama et al.
patent: 4874221 (1989-10-01), Ohsawa
Chikuma Kiyofumi
Okamoto Sota
Uemiya Takafumi
Lee John D.
Pioneer Electronic Corporation
Sumitomo Electric Industries Ltd.
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