Multiwavelength solid state laser using frequency conversion techniques
Patent 5144630 Issued on September 1, 1992. Estimated Expiration Date: 
July 29, 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.
July 29, 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 ReferencesMode-locked optical parametric oscillator apparatus Broadly tunable picosecond IR source Tripled Nd:YAG Pumped Tm3+ laser oscillator Method and apparatus for parametric generation of midinfrared light in KNbO3 Patent #: 5065046 InventorAssigneeApplicationNo. 736931 filed on 07/29/1991US Classes:372/22, Frequency multiplying (e.g., harmonic generator)359/330, Parametric oscillator372/21, Nonlinear device372/23Producing plural wavelength outputExaminersPrimary: Scott, Leon Jr.Attorney, Agent or FirmInternational ClassH01S 003/10AbstractA process and apparatus are disclosed for producing multiwavelength coherent radiations ranging from deep-ultraviolet to mid-infrared. The basic laser is a pulsed Nd:YAG or Nd:YLF laser which is frequency converted by a set of novel nonlinear crystals including D-CDA, LBO, BBO, KTP, and KNbO3, where efficient schemes using noncritical phase matching and cylindrical focusing are employed. A computer controlled integrated system suitable for multiple industrial and medical applications is described, particularly where a UV (at 210 nm and 213 nm) solid state laser is desired such as in refractive surgery. Furthermore, using optical parametric oscillation in nonlinear crystals, the laser system can produce tunable (1.5-4.5 microns) wavelengths covering a variety of medical applications. | |
