1xN fanout waveguide photodetector

Details 1xN fanout waveguide photodetector 1xN fanout waveguide photodetector

2005-02-15

2005-02-15

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

Reexamination Certificate

active

06856733

ABSTRACT:
A 1×N fanout waveguide detector is disclosed. The detector includes a multiple-mode interference (MMI) cavity with input and output ends. A single-mode waveguide is optically coupled to the input end of the MMI cavity so that the optical power in the guided mode is distributed over N modes. The MMI cavity forms N interference nodes at or near its output end. N waveguide detectors are optically coupled to the output end at or near the N interference nodes. The waveguide detectors each have a waveguide that is evanescently coupled to an intrinsic region of a PIN detector. The width of the detector waveguide core, which can be sub-micron, defines the carrier collection distance between the electrodes of the PIN detector. Further, the length of the detector waveguide can be selected to maximize optical absorption to provide optimum quantum efficiency. The waveguide detectors are connected in parallel to provide a high-output photocurrent.

REFERENCES:
patent: 3952265 (1976-04-01), Hunsperger
patent: 5396328 (1995-03-01), Jestel et al.
patent: 5701396 (1997-12-01), Liedenbaum et al.
patent: 6084992 (2000-07-01), Weber et al.
patent: 20030027797 (2003-02-01), Chu et al.
Sze, S. M.,High-Speed Semiconductor Devices, Sections 10.4-10.5, Wiley-Interscience Publications, John Wiley & Sons, Inc., New York, (1990), 605-613.

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