Optical waveguides – Integrated optical circuit
Patent
1990-04-24
1992-06-09
Lee, John D.
Optical waveguides
Integrated optical circuit
385 4, 385 7, 385 1, 369 4412, G02B 612
Patent
active
051214490
ABSTRACT:
Disclosed is an information detecting system of scanning type which comprises a substrate formed with an optical waveguide layer, a laser oscillator emitting a laser beam, a SAW type beam deflecting device formed on the optical waveguide layer, a beam irradiating section irradiating a specimen with the laser beam derived from the optical waveguide layer, a controller controlling the frequency of a high-frequency voltage applied to the SAW type beam deflecting device so as to scan the specimen with the laser beam directed from the beam irradiating section, and a detecting section detecting the position and/or the intensity of the laser beam scanning the specimen with respect to the SAW control signal controlled by the controller.
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Applied Optics, Waveguide optical deflector for an optical disk tracking actuator using a surface acoustic wave device, vol. 29, No. 2, pp. 247-250.
Funatsu Ryuichi
Inagaki Akira
Shiba Masataka
Tanaka Minoru
Taniguchi Motoya
Barns Stephen W.
Hitachi , Ltd.
Lee John D.
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