A copper “HyBrID” laser of high-beam quality using an axial unstable cavity

Author

Coutance, Pascal ; Naylor, Graham ; Pique, Jean Paul

Author_Institution

Lab. de Spectrometrie Phys., Univ. Joseph Fourier, Grenoble, France

Volume

31

Issue

10

fYear

1995

fDate

10/1/1995 12:00:00 AM

Firstpage

1747

Lastpage

1752

Abstract

A 100 W copper “HyBrID” laser (CuHBr laser) fitted with an unstable cavity is examined in the far field and compared with a conventional copper vapor laser of similar beam dimensions. In the far field the divergence is about 100 μradians for the HyBrID laser. The copper vapor laser produces a slightly larger central divergence with significant high divergent structure. This is explained to be due to pulse shape and differences in radial variations of the gain onset timing of the two types of laser, improved beam quality is important for efficient pumping of titanium sapphire lasers and micromachining

Keywords

copper; gas lasers; laser beams; laser cavity resonators; laser stability; optical pumping; Cu; Cu vapour laser; HBr; HyBrID laser; axial unstable cavity; beam dimensions; central divergence; copper vapor laser; efficient pumping; far field; gain onset timing; high divergent structure; high-beam quality; improved beam quality; laser beam pumping; micromachining; pulse shape; titanium sapphire lasers; unstable cavity; Atomic beams; Copper; Electron tubes; Gas lasers; Hydrogen; Laser beams; Laser excitation; Power lasers; Pump lasers; Temperature;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.466048

Filename

466048