Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-06-19
2007-06-19
Pak, Sung (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C385S009000, C385S028000
Reexamination Certificate
active
11042537
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: 4324492 (1982-04-01), Drenckhan et al.
patent: 4827482 (1989-05-01), Towe et al.
patent: 5396328 (1995-03-01), Jestel et al.
patent: 5416861 (1995-05-01), Koh et al.
patent: 5701396 (1997-12-01), Liedenbaum et al.
patent: 5812708 (1998-09-01), Rao
patent: 5889903 (1999-03-01), Rao
patent: 6084992 (2000-07-01), Weber et al.
patent: 6125217 (2000-09-01), Paniccia et al.
patent: 6205163 (2001-03-01), Hamamoto
patent: 6351576 (2002-02-01), Ding
patent: 6400490 (2002-06-01), Hosoi
patent: 6661943 (2003-12-01), Li
patent: 6842472 (2005-01-01), Shimonaka
patent: 6925265 (2005-08-01), Franco et al.
patent: 2001/0026570 (2001-10-01), Hisanaga et al.
patent: 2002/0172464 (2002-11-01), Delwala
patent: 2002/0172894 (2002-11-01), Fallahi et al.
patent: 2003/0002797 (2003-01-01), Chu et al.
patent: 2003/0081878 (2003-05-01), Joyner et al.
patent: 2004/0131310 (2004-07-01), Walker
Koh, Seungug , et al., “Synchronous global clock distribution on multichip modules using optical waveguides”,Optical Engineering, vol. 33, No. 5, (May 1994),1587-1595.
Sze, S. M.,High-Speed Semiconductor Devices, Sections 10.4-10.5; Wiley-Interscience Publications, John Wiley & Sons, Inc., New York,(1990),605-613.
Intel Corporation
Pak Sung
Petkovsek Daniel
Schwegman Lundberg Woessner & Kluth P.A.
LandOfFree
1×N fanout waveguide photodetector does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with 1×N fanout waveguide photodetector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 1×N fanout waveguide photodetector will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3844687