Broadly tunable chromium-doped beryllium aluminate lasers and operation thereof
Patent 4272733 Issued on June 9, 1981. Estimated Expiration Date: 
May 29, 1999. 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.
May 29, 1999. 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 ReferencesChromium-doped beryllium aluminate lasers Patent #: 3997853 InventorsAssigneeApplicationNo. 06/043513 filed on 05/29/1979US Classes:372/20, Tuning372/41Insulating crystalExaminersPrimary: Sikes, William L.Assistant: Scott, Leon Attorney, Agent or FirmInternational ClassesH01S 3/16 (20060101)H01S 3/106 (20060101) AbstractA high power, broadly wavelength-tunable laser is provided which comprises as the laser medium particular single crystals of chromium-doped beryllium aluminate (BeAl2 O4 :Cr3+) having the chrysoberyl structure, means for exciting the laser medium and tuning means. The laser may be operated over a broad temperature range from cryogenic temperatures to elevated temperatures. Elevated temperatures are preferred, however, since they result in higher laser gain. Emission is in a spectral range from red to infrared, and the laser is useful in the fields of defense, communications, isotope separation, photochemistry, etc.CROSS-REFERENCE TO PRIOR APPLICATIONThis application is a continuation-in-part of application Ser. No. 953,067, filed Oct. 20, 1978. | |
