Reduced loss ultra-fast semiconductor modulator and switch

Details Reduced loss ultra-fast semiconductor modulator and switch Reduced loss ultra-fast semiconductor modulator and switch

2008-09-02

2008-09-02

Chan, Jason (Department: 2613)

Optical communications

Multiplex

Optical switching

Reexamination Certificate

active

11007858

ABSTRACT:
An optical modulator or switch is disclosed. An apparatus includes an optical splitter disposed in a semiconductor material that splits an optical beam having a first wavelength into first and second portions. The first and second portions of the optical beam are to be directed through first and second optical waveguides, respectively. The first optical waveguide is also optically coupled to receive a pump optical beam to amplify and phase shift the first portion of the optical beam. A diode structure is disposed in the first optical waveguide and is selectively biased to sweep out free carriers from the first optical waveguide generated in response to two photon absorption in the optical waveguide. An optical coupler is disposed in the semiconductor material and is optically coupled to the first and second optical waveguides to combine the first and second portions of the optical beam.

REFERENCES:
patent: 4786129 (1988-11-01), Webb
patent: 5754714 (1998-05-01), Suzuki et al.
patent: 5920666 (1999-07-01), Digonnet et al.
patent: 6563627 (2003-05-01), Yoo
patent: 6674773 (2004-01-01), Cotteverte et al.
patent: 6999670 (2006-02-01), Gunn, III et al.
patent: 2004/0090661 (2004-05-01), Nicolaescu
patent: 2006/0159382 (2006-07-01), Rong
patent: WO 2006/028621 (2006-03-01), None
patent: WO 2006/063348 (2006-06-01), None
patent: PCT/US2005/027631 (2006-09-01), None
Mizunami T. et al., “Short-Wavelength Stimulated Raman Scattering in a Silica Fiber Pumped by an XeBr Excimer Laser,” IEEE Journal of Quantum Electronics, vol. 25, No. 8, pp. 1917-1920, Aug. 1, 1989.
Claps R. et al., “Observation of stimulated Raman amplification in silicon waveguides,” Optics Express, vol. 11, No. 15, pp. 1731-1739, Jul. 28, 2003.
Rong H. et al., “An All-silicon Raman laser,” NATURE, vol. 433, No. 7023, pp. 292-294, Jan. 20, 2005.
U.S. Appl. No. 10/933,652, filed Sep. 2, 2004, Office Action, mailed Jan. 18, 2007.
PCT/US2005/044928; International Preliminary Report on Patentability: Jun. 27, 2007; 7 pages.
PCT/US2005/044928; International Search Report and Written Opinion; Apr. 27, 2006; 10 pages.
U.S. Appl. No. 11/337,214; Non-Final Office Action; mailed Jan. 17, 2007; 9 pages.
U.S. Appl. No. 11/337,214; Final OfficeAction; mailed Jun. 20, 2007; 9 pages.

Affiliated with

Also associated with

Rating

Reduced loss ultra-fast semiconductor modulator and switch does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Reduced loss ultra-fast semiconductor modulator and switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reduced loss ultra-fast semiconductor modulator and switch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3916040