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Gain-switched laser diode seeded TDFA with 409 W picosecond pulses and 142 W spectrally flat supercontinuum output
- Source :
- Optics express. 27(2)
- Publication Year :
- 2019
-
Abstract
- We report on a high-power picosecond all-fiber Tm-doped fiber amplifier (TDFA) seeded by a gain-switched laser diode (LD) in the 2 µm spectral range. A total average output power of 409 W (304 ps) has been generated at 320 MHz of repetition rate with 10 dB bandwidth of ~48 nm centered at 1970 nm. Over 140 W of spectrally flat supercontinuum (SC) output has been produced at 40 MHz of repetition rate with optimized fiber length. The 10 dB spectral bandwidth was 615 nm, ranging from 1965 to 2580 nm. The prospects for further power scaling of LD seeded ~2 µm picosecond all-fiber sources are discussed.
- Subjects :
- Materials science
Laser diode
business.industry
Bandwidth (signal processing)
Ranging
02 engineering and technology
021001 nanoscience & nanotechnology
01 natural sciences
Atomic and Molecular Physics, and Optics
Supercontinuum
law.invention
010309 optics
Optics
law
Fiber laser
Picosecond
0103 physical sciences
Seeding
Laser power scaling
0210 nano-technology
business
Subjects
Details
- ISSN :
- 10944087
- Volume :
- 27
- Issue :
- 2
- Database :
- OpenAIRE
- Journal :
- Optics express
- Accession number :
- edsair.doi.dedup.....694a90e10096c13a4629e927c4f988ba