Accession Number:

ADD014527

Title:

A Room-Temperature, Laser Diode-Pumped, Q-Switched, 2 Micron, Thulium-Doped, Solid State Laser.

Descriptive Note:

Patent Application, Filed 30 Mar 90,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

• Esterowitz, Leon
• Stoneman, Robert C.

Report Date:

1990-03-30

Pagination or Media Count:

18.0

Abstract:

A room-temperature, laser-pumped, Q-switched, thulium-doped, solid state laser for producing pulses of laser emission at substantially 2 microns is disclosed. In a preferred embodiment, the laser comprises a laser cavity defined by first and second reflective path elements opposing each other on a common axis to form a reflective path there between a laser crystal disposed in the laser cavity, the laser crystal having a host material doped with an amount of thulium activator ions sufficient to produce a laser emission at substantially 2 microns from the 3F4 to 3H6 laser transition in the thulium activator ions when the laser crystal is enabled and is pumped by a CW pump beam at a preselected wavelength a pump laser for pumping the laser crystal with the CW pump beam at the preselected wavelength and a Q-switch disposed in the laser cavity between the laser crystal and the second reflective element for periodically enabling the laser crystal to produce a pulsed laser emission at substantially 2 microns when the crystal is also pumped by the CW pump beam. Patent applications. jhd

Descriptors:

• *PATENT APPLICATIONS
• *PULSED LASERS
• *SOLID STATE LASERS
• ACTIVATION
• CRYSTALS
• EMISSION
• IONS
• LASER CAVITIES
• LASER PUMPING
• Q SWITCHING
• ROOM TEMPERATURE
• DOPING
• PATHS
• PULSES
• REFLECTION
• REFLECTIVITY
• THULIUM

Subject Categories:

• Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE