Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2005-05-31
2008-09-02
Connelly-Cushwa, Michelle R. (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
Reexamination Certificate
active
07421163
ABSTRACT:
A grating assisted optical waveguide for use in free space optical detection is disclosed. High speed, high sensitivity, large field of view, and relaxed tolerance on alignment are enabled. The grating converts a free space incoming optical beam into guided mode. Converted optical signals propagate along the waveguide, and can be directed to an optical detector. As such, the optical intensity at the active area of the detector is increased significantly. A number of optical beam converter gratings for free space light collection can be used, including linear and ring structure gratings, chirped gratings, and multilayer gratings. Such a grating assisted optical waveguide can be used, for example, in a digital wireless multimedia system, where digital content is wirelessly transmitted from a source to a target destination, such as home-based video and audio entertainment systems.
REFERENCES:
patent: 5621715 (1997-04-01), Ohyama
patent: 6111677 (2000-08-01), Shintani et al.
patent: 6748144 (2004-06-01), Lindsey
patent: 6766078 (2004-07-01), Canning
patent: 6915080 (2005-07-01), Heminger et al.
patent: 2002/0095618 (2002-07-01), Orcutt et al.
patent: 2003/0043435 (2003-03-01), Oettinger et al.
patent: 2004/0156590 (2004-08-01), Gunn et al.
patent: 2004/0218870 (2004-11-01), Blauvelt et al.
patent: 2005/0078913 (2005-04-01), Blauvelt et al.
patent: 2005/0111309 (2005-05-01), Peng
patent: 2288907 (1995-01-01), None
patent: 2288138 (1995-08-01), None
Microwave and Optical Waveguides, Nigel J Cronin, 1995. pp. 53 and 61-63.
Bell, Ian; NEC Develops Wireless HDTV Tranceiver, Designtechnica News, Apr. 6, 2005, [online], [retrieved on Sep. 20, 2005]. Retrieved from the Internet <URL: http: http:/
ews.designtechnica.com/article7034.html>, pp. 1-5.
Case, Loyd, ViXS Enables Wireless HDTV, 01-09-04, PCMagazine [online], [retrieved on Sep. 20, 2005]. Retrieved from the Internet <URL: http: http://www.pcmag.com/article2/0,4149,1429995,00.asp>, pp.1-7.
Chen, Ray, et al.; Fully Embedded Board-Level Guided-Wave Optoelectronic Interconnects, Proceedings of the IEEE, vol. 88, No. 6, Jun. 2000 [online], [retrieved on Sep. 20, 2005]. Retrieved from the Internet <URL: http://129.116.90.208/GroupPapers/2.pdf>, pp. 780-793.
Chen, Ray, et al.; Si CMOS process-compatible guided-wave optical interconnects; Proc. SPIE vol. 3632, Optoelectronic Interconnects VI, Julian P. Bristow; Suning Tang; Eds, Apr. 1999, pp. 22-27.
Blair Randall
Tong Xiaolin
Tzeng Shing-Wu P.
Zhang Hua
Connelly-Cushwa Michelle R.
Fenwick & West LLP
OWLink Technology, Inc.
Rahll Jerry T
LandOfFree
High speed free space optical detection with grating... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High speed free space optical detection with grating..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High speed free space optical detection with grating... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3985439