Generation of orange pulse laser in waterproof fluoride glass fibre with graphene thin film

Author

Fujimoto, Yasutaka ; Suzuki, Takumi ; Ochante, R.A.M. ; Hirayama, Takatsugu ; Murakami, M. ; Shiraga, H. ; Yoshida, Manabu ; Ishii, O. ; Yamazaki, M.

Author_Institution

Inst. of Laser Eng., Osaka Univ., Suita, Japan

Volume

50

Issue

20

fYear

2014

fDate

September 25 2014

Firstpage

1470

Lastpage

1472

Abstract

Orange laser pulses were successfully generated in a Pr-doped waterproof fluoride glass fibre (Pr:WPFGF) using a graphene thin film as a saturable absorber (SA). Two pulse generation modes were observed: a continuous mode with 0.47 μs pulse duration with a 2.61 μs repetition period and a single giant pulse mode with 9.7 ns pulse duration. The peak wavelength was 603 nm. This result shows that a graphene thin film can be effective as an SA in the visible region, and in the future a visible ultra-short pulse laser with a modelocking technique may be demonstrated.

Keywords

fibre lasers; fluoride glasses; glass fibres; graphene; laser mode locking; laser modes; optical pulse generation; optical saturable absorption; praseodymium; C; Pr-doped waterproof fluoride glass fibre; continuous mode; graphene thin film; mode-locking technique; orange pulse laser generation; peak wavelength; pulse generation modes; saturable absorber; time 0.47 mus; time 2.61 mus; time 9.7 ns; wavelength 603 nm;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el.2014.2302

Filename

6908654