Visible ns-pulse laser oscillation in Pr-doped double-clad structured waterproof fluoride glass fibre with SESAM
- Author(s): Shota Kajikawa 1 ; Minoru Yoshida 1 ; Shinji Motokoshi 2 ; Osamu Ishii 3 ; Masaaki Yamazaki 4 ; Yasushi Fujimoto 5
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View affiliations
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Affiliations:
1:
Faculty of Science and Engineering , Kindai University , 3-4-1 Kowakae, Higashiosaka City, Osaka 577-8502 , Japan ;
2: Institute of Laser Technology , 1-8-4 Utsubo-Honmachi, Nishi-ku, Osaka 550-0004 , Japan ;
3: Production Engineering Section, Optical Glass Production Department , Sumita Optical Glass, Inc. , 174-1 Tabehara, Tajima, Minamiaizu-gun, Fukushima 967-0004 , Japan ;
4: Glass Research Division, R&D Department , Sumita Optical Glass, Inc. , 4-7-25 Harigaya, Urawa-ku, Saitama City, Saitama 330-8565 , Japan ;
5: Department of Electrical and Electronic Engineering , Chiba Institute of Technology , 2-17-1 Tsudanuma, Narashino, Chiba 275-0016 , Japan
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Affiliations:
1:
Faculty of Science and Engineering , Kindai University , 3-4-1 Kowakae, Higashiosaka City, Osaka 577-8502 , Japan ;
- Source:
Volume 2017, Issue 7,
July
2017,
p.
407 – 409
DOI: 10.1049/joe.2017.0258 , Online ISSN 2051-3305
A visible Q-switched pulse train at 639 nm was successfully generated in a Pr-doped double-clad structured waterproof fluoride glass fibre with a semiconductor saturable absorber mirror. The slope efficiency was calculated as 36.3%. The pulse duration and the radio frequency were measured as 270 ns and 107 kHz at 596 mW of absorbed power, respectively. The pulse energy and the pulse peak power were calculated as 1.32 μJ and 4.87 W, respectively.
Inspec keywords: fibre lasers; glass fibres; laser beams; fluoride glasses; optical glass; Q-switching; optical saturable absorption; optical pulse generation; praseodymium; laser mirrors
Other keywords: energy 1.32 muJ; efficiency 36.3 percent; power 596 mW; absorbed power; visible Q-switched pulse train generation; visible ns-pulse laser oscillation; frequency 107 kHz; wavelength 639 nm; pulse energy; slope efficiency; Pr-doped double-clad structured waterproof fluoride glass fibre; SESAM; pulse peak power; radio frequency; time 270 ns; pulse duration; semiconductor saturable absorber mirror
Subjects: Optical saturation and related effects; Fibre lasers and amplifiers; Optical transient phenomena, self-induced transparency, optical saturation and related effects; Design of specific laser systems; Laser beam modulation, pulsing and switching; mode locking and tuning; Optical lenses and mirrors; Ultrafast optical techniques; Laser beam modulation, pulsing and switching; mode locking and tuning; Laser beam characteristics and interactions; Laser accessories and instrumentation; Fibre lasers and amplifiers
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