Multiple-stage optical Kerr gate system
Patent 5227912 Issued on July 13, 1993. Estimated Expiration Date: 
October 30, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 30, 2011. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1913795 3408133 3521069 3675022 3701956 Passive and active pulse stacking scheme for pulse shaping Optical switching device including polarization preserving coupler utilizing Kerr effect and method of using same Integrated Kerr shutter and fiber laser optical modulation Patent #: 5111326 InventorsApplicationNo. 784220 filed on 10/30/1991US Classes:359/258, Kerr cell359/259, Plural modulation cells372/700OPTICAL DELAYExaminersPrimary: Lerner, MartinAttorney, Agent or FirmForeign Patent References
International ClassesG02F 001/03H01S 003/11 AbstractA multiple-stage optical Kerr gate system for gating a probe pulse of light. In a first embodiment, the system includes at least two optical Kerr gates, each Kerr gate including a polarizer, an optical Kerr cell actuable by a pump pulse, and an analyzer. In a second embodiment, at least one of the Kerr cells may be eliminated by arranging the respective sets of polarizers and analyzers so that they share a common Kerr cell. Gated pulses obtained using the present system typically have a signal to noise ratio that is at least 500 times better than that for gated pulses obtained using a single optical Kerr gate system. The system of the present invention may also include means for causing the pump pulse to arrive at the second Kerr cell (in the case of the first embodiment) or at a single Kerr cell a second time (in the case of the second embodiment) non-synchronously with the arrival of the probe pulse thereat. In this manner, gated pulses may be obtained that are much shorter in duration than pulses gated with a single optical Kerr gate system.Other References
| |
