Accession Number:

ADD014506

Title:

Apparatus for the Efficient Wavelength Conversion of Laser Radiation.

Descriptive Note:

Patent, Filed 26 Jun 89, patented 6 Mar 90,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Chun, Myung K.
• Goldberg, Lew
• Weller, Joseph F.

Report Date:

1990-03-06

Pagination or Media Count:

16.0

Abstract:

An apparatus for generating coherent radiation at a desired frequency is disclosed. In a preferred embodiment the apparatus comprises an injection-locked semiconductor diode structure having a large active area for emitting a diffraction-limited beam at a preselected frequency optics for focusing the diffraction-limited beam into a focused beam a nonlinear crystal responsive to the focused beam for producing a beam of laser power which includes an output beam at a desired harmonic of the preselected frequency and a device for passing the output beam in a given direction. In a modification of the preferred embodiment, the output of the injection-locked semiconductor diode structure is mixed with an emission from a laser source in the nonlinear crystal to produce a desired sum or difference frequency. Patents. jhd

Descriptors:

• *DIFFERENCE FREQUENCY
• *PATENTS
• COHERENT RADIATION
• FREQUENCY CONVERSION
• CRYSTALS
• CONVERTERS
• DIFFRACTION
• QUANTUM EFFICIENCY
• LASER BEAMS
• SEMICONDUCTOR LASERS
• LIMITATIONS
• NONLINEAR SYSTEMS
• OPTICS
• OUTPUT
• INJECTION DIODES
• POWER

Subject Categories:

• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE