Optical functional circuit

Details Optical functional circuit Optical functional circuit

2005-07-01

2009-08-25

Kim, Ellen (Department: 2874)

Optical waveguides

Integrated optical circuit

C385S039000, C385S049000

Reexamination Certificate

active

07580597

ABSTRACT:
The present invention provides an optical functional circuit where a holographic wave propagation medium is applied and a circuit property is excellent such as small transmission loss and crosstalk. The optical functional circuit where a plurality of circuit elements are formed on a substrate includes the wave propagation medium for converting an optical path of a leakage light so that the leakage light that is not emitted from a predetermined output port of the circuit element is not coupled to a different circuit element. This wave propagation medium is constituted by an optical waveguide that is provided with a clad layer formed on the substrate and a core embedded in the clad layer, and a part of the optical waveguide is formed in accordance with a refractive index distribution which is multiple scattered.

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Yabu Tetsuro et al.,New Design Method for Low Loss Y-branch Waveguides, The Institute of Electronics, Information and Communication Engineers, vol. 100, No. 68, May 12, 2000, pp. 65-72.

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