Multiwavelength solid state laser using frequency conversion tec

Details Multiwavelength solid state laser using frequency conversion tec Multiwavelength solid state laser using frequency conversion tec

1991-07-29

1992-09-01

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Nonlinear device

372 21, 372 23, 359330, H01S 310

Patent

active

051446308

ABSTRACT:
A 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 KNbO.sub.3, 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.

REFERENCES:
patent: 4180751 (1979-12-01), Ammann
patent: 4349907 (1982-09-01), Campillo et al.
patent: 4386428 (1983-05-01), Baer
patent: 5065046 (1991-11-01), Guyer

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