High average power conductive-cooled diode-pumped Nd:YLF MOPA system

Author

Yanagisawa, T. ; Shoji, Y. ; Imaki, M. ; Ueno, S. ; Hirano, Y. ; Uchino, O. ; Nagai, T. ; Nagasawa, C.

Author_Institution

Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan

fYear

1999

fDate

28-28 May 1999

Firstpage

32

Lastpage

33

Abstract

Summary form only given. Recent progress of diode pumped solid state lasers (DPSSL) has demonstrated its potential for highly efficient and high power operation with good beam quality, compactness and high reliability. Moreover, for space-borne use, conductive-cooling is the preferred system compared with conventional liquid-cooling in ground-based system. However, the cooling techniques for the active medium have been at the development stage. In particular, conductive-cooling for simple rod-type active medium is more difficult than that for slab-type active medium. We have developed a conductive-cooled Q-switched diode-pumped Nd:YLF MOPA system which provides an output average power as high as 50-W. To our knowledge, this is the highest average power for this kind of systems, being an order of magnitude greater than the previously reported conductive-cooled Q-switched rod laser systems.

Keywords

Q-switching; heat conduction; laser beams; laser cooling; laser reliability; lithium compounds; neodymium; optical pumping; power amplifiers; solid lasers; 50 W; LiYF/sub 4/:Nd; Nd:LiYF/sub 4/ MOPA system; Nd:LiYF/sub 4/ laser; Q-switched high average power operation; Q-switched laser; active medium; average power; beam quality; compactness; conductive-cooled Q-switched rod laser systems; conductive-cooling; conventional liquid-cooling; cooling techniques; development stage; diode pumped solid state lasers; diode-pumped laser; ground-based system; high average power conductive-cooled diode-pumped MOPA system; high average power conductive-cooled laser; high power operation; high reliability; highly efficient operation; output average power; simple rod-type active medium; slab-type active medium; space-borne use; Absorption; Cooling; Diodes; Electrons; Laser excitation; Laser modes; Laser theory; Power lasers; Pump lasers; Slabs;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-595-1

Type

conf

DOI

10.1109/CLEO.1999.833839

Filename

833839