Self-mode locking in a Q-switched erbium-doped fiber laser

Myśliński, P.; Chrostowski, J.; Koningstein, J. A.

doi:10.1364/ao.32.000286

Cited by 82 publications

(36 citation statements)

References 18 publications

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“…This self-mode-locking modulation happened at P abs 42.3 W, and also the modulation depth increased with pump power. This phenomenon has been reported in Q-switched fiber lasers [25,28,29] and also self-pulsed fiber laser [30], and usually was attributed to the mode beats between axial modes of the cavity and was supported by further mode coupling caused by self-phase modulation [31].…”

Section: Resultssupporting

confidence: 57%

Azimuthally polarized, passively Q-switched Yb-doped fiber laser

Zou

Yao

Han

et al. 2015

Optics Communications

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Section: Resultssupporting

confidence: 57%

Azimuthally polarized, passively Q-switched Yb-doped fiber laser

Zou

Yao

Han

et al. 2015

Optics Communications

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“…3, inset) comprises a main pulse and much lower-power satellite pulses before and after the main pulse. Similarly short pulses were observed previously in Q-switched Er-doped fiber lasers, and various explanations for this behavior, such as the conjunction of Q-switched operation with self-mode locking owing to self-phase modulation 15,16 and the effect of stimulated Brillouin scattering, 17,18 have been proposed. Further research to determine the origin of the short-pulse generation for our passively Q-switched f iber laser is in progress.…”

supporting

confidence: 74%

Compact diode-pumped passively Q-switched tunable Er–Yb double-clad fiber laser

et al. 2002

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Efficient repetitive passive Q switching of a cladding-pumped Er -Yb fiber laser has been demonstrated by use of an external-cavity configuration containing a Co 21 : ZnS crystal as a saturable absorber. Energies of as much as 60 mJ in pulses of durations as short as 3.5 ns (FWHM), corresponding to a peak power of .10 kW, have been generated, and the maximum slope efficiency with respect to the absorbed pump power was 13%. Using a bulk diffraction grating in the Littrow configuration to provide wavelength-selective feedback, we tuned the passively Q-switched fiber laser over 31 nm from 1532 to 1563 nm. The prospects for further improvement in performance are discussed. © 2002 Optical Society of America OCIS codes: 060.2320, 140.3480, 140.3540, 140.3510, 140.3600. Over the past decade, progress in the development of efficient diode-pumped, pulsed solid-state lasers operating in the eye-safe wavelength regime near 1.5 mm has been dramatic, fueled by the needs of a variety of scientific, industrial, and defense applications. For some of these applications (e.g., range finding and remote sensing) the requirement for short pulses (a few nanoseconds) has led to the development of compact Er-Yb-doped glass microlasers with active or passive Q switching. By virtue of their very short cavity lengths (typically a few millimeters), these lasers can generate pulses of ,8-ns duration and .3-mJ energy. 1An alternative method for producing pulsed output in the 1.5-mm spectral range is to Q switch an Er -Yb-codoped fiber laser. This approach has the potential attraction that output powers should be scalable to much higher levels without degradation in beam quality by the use of a double-clad fiber design and cladding -pumping. To simplify the resonator design and eliminate the need for external Q-switching electronics, passive Q switching of single-clad Er-doped fiber lasers has also been attempted with a liquefying gallium mirror, 9 a semiconductor saturable absorber, 10 and a Co 21 :ZnSe crystal as the saturable absorber.11

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“…The repetition rate and duration of the pulse width did not vary while we increased pump power. Therefore, the observed split pulses in a Q-switched envelope are caused by the self mode-locking effect, which is frankly met in actively Q-switched fiber lasers [8], [9] . To the best of our knowledge, the self mode-locking effect in the self Q-switched Er/Yb co-doped fiber ring laser with such experimental setup is observed experimentally for the first time.…”

Section: Experimenal Resultsmentioning

confidence: 99%

All-fiber Q-switched Er/Yb co-doped fiber ring laser

Xie

Zhang

et al. 2005

SPIE Proceedings

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In this paper, a novel all-fiber Q-switched single mode Er/Yb co-doped double clad fiber ring laser operating in 1548.11nm is reported, which exploits fiber Bragg grating Sagnac loop mirror as a wavelength-selective device. To obtain higher output power, the laser is pumped by six CW laser diodes operating at 976nm through six pigtails of a Tapered Fiber Bundle connected with the EYDF. When the pump power is 718.9mW, stable self Q-switched pulse series with pulse width of 2.8μs, repetition rate of 50kHz and peak power of 274.3mW are achieved. Self mode-locked pulse is also obtained in such experimental setup.

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Self-mode locking in a Q-switched erbium-doped fiber laser

Abstract: Stable and efficient self-mode locking in a Q-switched highly doped erbium fiber laser has been demonstrated. The proposed mechanism of the pulse formation based on self-phase modulation agrees well with the observed pulse characteristics.

Cited by 82 publications

References 18 publications

Azimuthally polarized, passively Q-switched Yb-doped fiber laser

Azimuthally polarized, passively Q-switched Yb-doped fiber laser

Compact diode-pumped passively Q-switched tunable Er–Yb double-clad fiber laser

All-fiber Q-switched Er/Yb co-doped fiber ring laser

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