Photonic device and method for making same

Details Photonic device and method for making same Photonic device and method for making same

2007-02-20

2007-02-20

Pak, Sung (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

C385S015000, C385S014000, C385S050000

Reexamination Certificate

active

11068477

ABSTRACT:
A monolithic device for photonically coupling a first optical waveguide to a second optical waveguide, including: an input being optically coupled to the first waveguide; a first portion being optically coupled to the input; a second portion being optically coupled to the first portion; and, an output being optically coupled to the second portion and the second waveguide; wherein, when an optical signal is provided on the first waveguide, a given part of the signal is provided to the second waveguide dependently upon an angle between the first and second portions. At least one of the waveguides may have an amorphous silicon material coating.

REFERENCES:
patent: 5246734 (1993-09-01), Varaprath et al.
patent: 6671426 (2003-12-01), Litvin
patent: 6788838 (2004-09-01), Ho
patent: 2004/0229539 (2004-11-01), Johnson et al.
Lai, Q et al.: “Arbitrary Ratio Power Splitters Using Angled Silica on Silicon Multimode Interference Couplers” Electronics Letters, vol. 32, No. 17, Aug. 15, 1996, pp. 1576-1577, see entire document, Figure 1.
Heaton, J. et al. “General Matrix Theory of Self-Imaging in Multimode Interference (MMI) Couplers” IEEE Photonics Tech. Letters, vol. 11, No. 2, Feb. 1999, pp. 212-214, see entire document; cited in application.

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