Titanium-doped sapphire laser research and design study. Final contractor report

Technical Report · Tue Sep 01 00:00:00 EDT 1987

OSTI ID:5895911

Moulton, P F

Three main topics were considered in this study: the fundamental laser parameters of titanium-doped sapphire, characterization of commercially grown material, and design of a tunable, narrow-linewidth laser. Fundamental parameters investigated included the gain cross section, upper-state lifetime as a function of temperature and the surface-damage threshold. Commercial material was found to vary widely in the level of absorption of the laser wavelength with the highest absorption in Czochralski-grown crystals. Several Yi:sapphire lasers were constructed, including a multimode laser with greater than 50mJ of output energy and a single-transverse-mode ring laser, whose spectral and temporal characteristics were completely characterized. A design for a narrow-linewidth (single-frequency) Ti:sapphire laser was developed, based on the results of the experimental work. The design involves the use of a single-frequency, quasi-cw master oscillator, employed as an injection source for a pulsed ring laser.

• Research Organization: Schwartz Electro-Optics, Inc., Concord, MA (USA)
• OSTI ID: 5895911
• Report Number(s): N-87-27998; NASA-CR-4093; NAS-1.26:4093
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
RING LASERS
DESIGN
SAPPHIRE
AMPLIFICATION
CRYSTAL GROWTH
SOLID STATE LASERS
CROSS SECTIONS
CZOCHRALSKI METHOD
TITANIUM ADDITIONS
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CORUNDUM
CRYSTAL GROWTH METHODS
LASERS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
TITANIUM ALLOYS
420300* - Engineering- Lasers- (-1989)