Characteristics of dispersion-tuning in harmonically mode-locked fiber laser

Author

Shu, C. ; Zhao, Y.

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, Hong Kong

Volume

10

Issue

8

fYear

1998

Firstpage

1106

Lastpage

1108

Abstract

We investigate the characteristics of dispersion-tuning in an actively mode-locked fiber ring laser. A continuous tuning range over 20 nm at about 1-GHz operation is realized. The range can be extended by optimizing the polarization to attain a flattened spectral gain in the Er-doped fiber. The influence of the harmonic order of operation together with the amount of dispersion in the fiber ring have been experimentally studied. Rational harmonic mode-locking is first demonstrated in the dispersion-tuned laser to increase the output repetition rate. Our results agree well with theory, showing that dispersion-tuning is a reliable, economic, and effective way to generate widely tunable pulses.

Keywords

erbium; fibre lasers; laser mode locking; laser reliability; laser tuning; optical fibre dispersion; optical fibre polarisation; ring lasers; 1 GHz; Er-doped fiber; GHz operation; actively mode-locked fiber ring laser; continuous tuning range; economic; flattened spectral gain; harmonic order; harmonically mode-locked fiber laser; laser dispersion-tuning; output repetition rate; rational harmonic mode-locking; reliable; widely tunable laser pulse generation; Dispersion; Fiber lasers; Laser mode locking; Laser theory; Laser tuning; Optical fiber polarization; Optical fiber theory; Optical pulse generation; Reliability theory; Ring lasers;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.701517

Filename

701517