700-kW-Peak-Power Monolithic Nanosecond Pulsed Fiber Laser

Author

Qiang Fang ; Wei Shi ; Jingli Fan

Author_Institution

Shandong HFB Photonics Co., Ltd., Weihai, China

Volume

26

Issue

16

fYear

2014

fDate

Aug.15, 15 2014

Firstpage

1676

Lastpage

1678

Abstract

We report a high-pulse energy, high-peak power, and monolithic nanosecond pulsed fiber laser source at ~1064 nm in master oscillator-power amplifier configuration. The seed source is a directly modulated laser diode, producing nanosecond pulses as short as ~3 ns with ~1-W peak power and a tunable repetition rate. Three core-pumped fiber amplifier stages and two double-cladding fiber amplifier stages were built to boost the peak power and the pulse energy of the ~3-ns seed pulses to ~697 kW and ~2.3 mJ, respectively. The all-fiber construction of the whole laser system enables compact size, maintenance-free, and robust operation.

Keywords

high-speed optical techniques; optical fibre amplifiers; optical pumping; power amplifiers; semiconductor lasers; compact size laser; core-pumped fiber amplifier; directly modulated laser diode; double-cladding fiber amplifier; high peak power fiber laser; high pulse energy fiber laser; maintenance-free laser; master oscillator-power amplifier configuration; monolithic nanosecond pulsed fiber laser; robust operation; tunable repetition rate; Fiber lasers; Laser modes; Measurement by laser beam; Optical fiber amplifiers; Power amplifiers; Power lasers; Semiconductor lasers; Fiber amplifier; Yb-doped fiber; nanosecond pulsed fiber amplifier;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2330766

Filename

6842659