Double cladding structure in optical multimode fibers fabricated by a high-intensity femtosecond laser

Author

Sung-Hak Cho ; Kumagai, H. ; Midorikawa, K. ; Obara, M.

Volume

1

fYear

1999

fDate

Aug. 30 1999-Sept. 3 1999

Firstpage

88

Abstract

To understand the relationship between solid-density plasma formation and input intensity, a multimode optical fiber was used, in which the behavior of plasma formation for various input intensities could be studied in situ. We report the experimental observation of laser induced long plasma formation and bulk modification in a multimode optical fiber excited by a high intensity (above 10/sup 12/ W/cm/sup 2/) femtosecond Ti:sapphire laser.

Keywords

laser materials processing; optical fibre cladding; optical fibre fabrication; optical self-focusing; refractive index; solid-state plasma; 1 W; 110 fs; bulk modification; double cladding structure; high intensity femtosecond Ti:sapphire laser; high-intensity femtosecond laser; input intensity; laser induced long plasma formation; multimode optical fiber; solid-density plasma formation; Fiber lasers; Optical fibers; Optical pumping; Optical refraction; Optical variables control; Power lasers; Refractive index; Solid lasers; Ultrafast electronics; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on

Conference_Location

Seoul, South Korea

Print_ISBN

0-7803-5661-6

Type

conf

DOI

10.1109/CLEOPR.1999.811637

Filename

811637