| US 7,538,935 B2 | ||
| All-optical, continuously tunable, pulse delay generator using wavelength conversion and dispersion | ||
| Alexander Gaeta, Ithaca, N.Y. (US); Jay E. Sharping, Merced, Calif. (US); and Chris Xu, Ithaca, N.Y. (US) | ||
| Assigned to Cornell Research Foundation, Inc., Ithaca, N.Y. (US) | ||
| Filed on Mar. 17, 2006, as Appl. No. 11/377,921. | ||
| Claims priority of provisional application 60/662391, filed on Mar. 17, 2005. | ||
| Prior Publication US 2009/0052011 A1, Feb. 26, 2009 | ||
| Int. Cl. G02F 1/35 (2006.01); G02F 2/02 (2006.01); H04B 10/00 (2006.01); H04B 10/04 (2006.01); H04B 10/12 (2006.01) | ||
| U.S. Cl. 359—326 [359/278; 359/330; 398/81; 398/82; 398/148; 398/161; 398/189] | 16 Claims |
| 1. A method for generating an optical output pulse that is delayed a controllable amount from an optical input pulse comprising
the steps of:
combining said optical input pulse with an optical control signal that interacts with said optical input pulse and forms a
first combined optical signal;
imparting a wavelength shift on said first combined optical signal and thereby forming a wavelength shifted optical signal;
inducing a delay in said wavelength shifted optical signal that is dependent on a magnitude of said wavelength shift;
wavelength shifting said delayed and wavelength shifted optical signal back to an original wavelength of said combined optical
signal and thereby forming a second combined optical signal; and
separating said output optical pulse from said second combined optical signal.
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