Optical waveguides – Integrated optical circuit
Reexamination Certificate
2005-03-22
2005-03-22
Bovernick, Rodney (Department: 2874)
Optical waveguides
Integrated optical circuit
C257S197000
Reexamination Certificate
active
06870977
ABSTRACT:
A monolithic integrated optical component includes a control transistor connected to an electro-optical component including an active waveguide and at least one input waveguide and one output waveguide. The transistor is a heterojunction bipolar transistor including at least one sub-collector layer that is common to a confinement layer of the electro-optical component. The active waveguide of the electro-optical component includes a widened structure under a contact area of the heterojunction bipolar transistor and having substantially the same surface area as the transistor.
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Yu-Heng Jan et al.; “Vertical Monolithic Integration of a GAAS/ALGAAS V-Channeled Substrate Inner Stripe Laser Diode and A Heterojunction Bipolar Transistor” Applied Physics Letters, American Institute of Physics.New York, US, vol. 57, No. 26, Dec. 24, 1990, pp. 2750-2752.
Yoshitaka Okada et al: “Optical Intensity Modulator for.Integrated Optics by use of a Heterojuntion Bipolar Transistor Waveguide Structure” Applied Physics Letters, American Institute of Physics. New York, US, vol. 55, No. 25, Dec. 18, 1989, pp. 2591-2593, XP000126806.
Andre Philippe
Blayac Sylvain
Devaux Fabrice
Avanex Corporation
Bovernick Rodney
Kang Juliana K.
Moser, Patterson & Sheridan L.L.P.
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