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All fiber mode-locked thulium-doped fiber laser using a novel femtosecond-laser-inscribed 45 degrees-plane-by-plane-tilted fiber grating
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SYSNO ASEP 0518312 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title All fiber mode-locked thulium-doped fiber laser using a novel femtosecond-laser-inscribed 45 degrees-plane-by-plane-tilted fiber grating Author(s) Kanagaraj, Nithyanandan (URE-Y)
Theodosiou, A. (CY)
Aubrecht, Jan (URE-Y) RID
Peterka, Pavel (URE-Y) RID
Kamrádek, Michal (URE-Y)
Kalli, K. (CY)
Kašík, Ivan (URE-Y) RID
Honzátko, Pavel (URE-Y) RIDNumber of authors 8 Article number 095104 Source Title Laser Physics Letters. - : Institute of Physics Publishing - ISSN 1612-2011
Roč. 16, č. 9 (2019)Number of pages 6 s. Publication form Print - P Language eng - English Country DE - Germany Keywords thulium doped fibre ; tilted fiber Bragg grating ; dissipative soliton ; fibre lasers ; soliton mode-locking Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects GA17-20049S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support URE-Y - RVO:67985882 UT WOS 000483050200001 EID SCOPUS 85075800902 DOI 10.1088/1612-202X/ab39db Annotation Using the novel 45 degrees-plane-by-plane-tilted fiber grating inscribed by a femtosecond laser as an in-line fiber polarizer, we demonstrate an all-fiber passively mode-locked thulium-doped fiber laser. We characterize the grating for polarization-dependent loss, indicating high contrast and broad operating wavelength. The 45 degrees-tilted fiber grating together with polarization controller act as an artificial saturable absorber suitable for mode-locking through nonlinear polarization rotation. By properly pre-adjusting the polarization controller, stable mode-locking is achieved for a pump power in the range of 300 mW-400 mW at 1565nm. Owing to the net anomalous dispersion, a stable mode-locked soliton pulse centered at 1870nm with a pulse width of 862 fs is reported at a fundamental repetition rate of 22.34 MHz. A long-term stability test reveals that the laser is quite stable for 24h under laboratory conditions, confirming the capabilities of the 45 degrees-tilted fiber grating for stable laser operation Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2020 Electronic address https://iopscience.iop.org/article/10.1088/1612-202X/ab39db
Number of the records: 1