Optical waveguides – With optical coupler – Particular coupling structure
Reexamination Certificate
2007-01-30
2007-01-30
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
With optical coupler
Particular coupling structure
C359S580000
Reexamination Certificate
active
11116294
ABSTRACT:
The present invention has an object to provide an optical apparatus of VIPA-type for achieving the reduction of the inter-channel loss deviation to realize a high accurate demultiplexing function. To this end, the optical apparatus according to the present invention comprises: a collimator lens converting an input light into a parallel light; a phase mask changing a phase of the parallel light from the collimator lens to change the intensity distribution into a shape different from the Gaussian distribution; a line focal lens condensing the light output from the phase mask onto a one-dimensional direction; and a VIPA plate multi-reflecting the light condensed by the line focal lens to emit the multi-reflected light.
REFERENCES:
patent: 5930045 (1999-07-01), Shirasaki
patent: 5969865 (1999-10-01), Shirasaki
patent: 6028706 (2000-02-01), Shirasaki et al.
patent: 6185040 (2001-02-01), Shirasaki et al.
patent: 6646805 (2003-11-01), Mitamura et al.
patent: 6900940 (2005-05-01), Mitamura et al.
patent: 2003/0058520 (2003-03-01), Yu et al.
patent: 1237308 (2002-09-01), None
patent: 9-43057 (1997-02-01), None
patent: 2000-111831 (2000-04-01), None
patent: 2000-511655 (2000-09-01), None
patent: 2000-288849 (2000-10-01), None
patent: 98/35259 (1998-08-01), None
patent: 99/9448 (1999-02-01), None
Hirotomo Izumi et al., “Analysis of the incident beam of variable dispersion compensator using Virtually Imaged Phased Array”, Collected Papers of Lecture of the Institute of Electronics, Information and Communication Engineers, 2002, vol. 1, c-3-39, p. 139.
Hirotomo Izumi et al., “A Design of Numerical Simulation for Variable Dispersion Compensator Using Virtually Imaged Phased Array”, The Journal of the Institute Electronics, Information and Communication Engineers, C, vol. J85-C, No. 10, pp. 898-905.
Yuichi Kawahata et al., “Variable Dispersion Compensator Using Virtually Imaged Phased Array” The Journal of the Institute Electronics, Information and Communcation Engineers, C, vol. 86, No. 1, pp. 45-50.
M. Shirasaki et al., “Compensation of the chromatic Dispersion and Dispersion Slope using a Virtually Imaged Phased Array”, Optical Fiber Communication Conference, pp. TuS1-1—TuS1-3.
Motoikazu Ohtsu, “Modern Optical Science I”, 3rdcopy, Asakura Shoten Co., pp. 108-127.
Fukushima Nobuhiro
Izumi Hirotomo
Connelly-Cushwa Michelle
Rahll Jerry T.
Staas & Halsey , LLP
LandOfFree
Optical apparatus provided with demultiplexing function does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Optical apparatus provided with demultiplexing function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical apparatus provided with demultiplexing function will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3754845