Oscillators – Relaxation oscillators
Patent
1977-05-06
1979-01-30
Corbin, John K.
Oscillators
Relaxation oscillators
331 945H, 357 19, G02B 514, H01S 319
Patent
active
041369289
ABSTRACT:
An optical integrated circuit includes a double heterostructure (DH) junction laser and a DH detector formed on an underlying dielectric waveguide. Coupling from the laser to the waveguide and then into the detector is achieved by means of oblique crystal facets formed at the extremities of the laser and detector active regions by a two-step etching process. In the laser the oblique surfaces also provide sufficient optical feedback to define the laser resonator.
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patent: 4007978 (1977-02-01), Holton
Tien et al., "Two-Layered Construction of Integrated Optical Circuits . . . ," Applied Physics Letters, vol. 24, No. 11, Jun. 1, 1974.
Suematsu et al., IEEE (JQE), vol. QE-11, No. 7, Jul. 1975, pp. 457-460.
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Logan Ralph A.
Merz James L.
Bell Telephone Laboratories Incorporated
Corbin John K.
Lee John D.
Urbano Michael J.
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