Q-switching of a thulium-doped fibre laser using a holmium-doped fibre saturable absorber

Sadovnikova, Ya.E.; Kamynin, V. A.; Kurkov, Andrei S; Medvedkov, O.I.; Marakulin, A V; Minashina, L A

doi:10.1070/qe2014v044n01abeh015310

Cited by 20 publications

(8 citation statements)

References 11 publications

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“…The SNR is comparable to some figures in the previous literatures. [21][22][23][24] This laser is considered stable since the SNR was above 50 dB. It is worthy to note that the laser operation was shifted to longer wavelength with the increase of HBEDF length, and the Q-switching operation was not possible at longer wavelength since the linear absorption of BDF is significantly lower at longer wavelength.…”

Section: Resultsmentioning

confidence: 99%

“…Thulium-doped fiber, samarium-doped fiber, holmiumdoped fiber, and titanium dioxide doped fiber have been previously reported as a Q-switcher. [21][22][23][24] This is attributed to the absorption profile of these fibers, which falls within the erbium fiber amplification region. Thus, it allows the intracavity loss modulation action in the erbium-doped fiber laser (EDFL) cavity to generate Q-switched laser.…”

Section: Introductionmentioning

confidence: 98%

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Bismuth‐doped fiber as Q‐switcher in hafnium bismuth erbium co‐doped fiber laser

Ahmad

Harun

Paul

et al. 2020

Micro & Optical Tech Letters

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We demonstrate a compact, all‐fiber Q‐switched hafnium bismuth erbium co‐doped fiber laser based on bismuth‐doped fiber (BDF) as the saturable absorber (SA). The laser cavity was constructed using a homemade hafnium bismuth erbium co‐doped fiber as gain medium. It was found that stable Q‐switched pulses operating at 1531.74 nm can be readily generated when the 980 nm pump power is raised above the threshold of 96 mW. By increasing the pump power to the maximum power of 198 mW, the repetition rate was tunable from 27.2 to 59.1 kHz while the pulse width reduces from 36.3 to 6.8 μs. At the maximum pump power, the Q‐switched laser produced a pulse energy of 10.1 nJ. The finding provides evidence of the possibility of BDF as an effective SA for Q‐switched laser operating in 1.5 μm region.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Bismuth‐doped fiber as Q‐switcher in hafnium bismuth erbium co‐doped fiber laser

Ahmad

Harun

Paul

et al. 2020

Micro & Optical Tech Letters

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“…2 µm pulse lasers have been widely applied in coherent Doppler wind lidars, differential absorption lidars, and nonlinear frequency conversion [5][6][7][8][9][10][11]. Generally, the 2 µm pulse laser can be generated through an active or passive modulation technique such as Q-switching or mode-locking, which requires the placing of additional modulation elements in the resonator [12][13][14][15][16][17][18]. Self-pulsing is an efficient method for obtaining a pulse laser, which is simpler and lower in cost compared with other modulation methods, due to not requiring special modulation elements in the laser cavity.…”

Section: Introductionmentioning

confidence: 99%

Stable pulse output of a diode-pumped Tm:YAP laser based on the longitudinal mode beating effect

Zhang

Zhong

et al. 2020

Laser Phys.

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We successfully demonstrate the stable pulse output of a diode-end-pumped Tm:YAP laser based on the longitudinal mode beating technique. Without any additional modulation elements in the cavity, the stable pulse output of a Tm:YAP laser at 1937 nm is achieved. At an absorbed pump power of 6 W, the average output power of 1.14 W is obtained with a slope efficiency of 23%, and the pulse duration is 5.3 ns with a pulse repetition frequency of 89 MHz. To the best of our knowledge, this is the first 2 µm self-pulsing solid-state laser based on the longitudinal mode beating effect.

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“…However, the thicker graphene layer takes a lot of time because of more difficult absorption [7]. It is worth to note that Sadovnikova et al [8] used a thulium-doped fiber laser with heavily holmium-doped fiber as SA acquiring low pulse energy. A passively Q-switched pulse of Brillouin fiber laser (BFL) is reported using multi-walled carbon nanotubes (MWCNTs) by Arman Zarei et al [9] with 0.13 nJ pulse energy.…”

Section: Introductionmentioning

confidence: 99%

Black Phosphorus Saturable Absorber for Pulse Generation Using Q-switched Teachnique

Hamida¹,

Hussein²,

Khan³

et al. 2018

IJEECS

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This paper reported a passive Q-switched erbium doped fiber laser (EDFL) using two-dimensional (2D) material of black phosphorus saturable absorber (BP-SA). The maximum output power reached is 3.54 mW, which is generated by pump power of 42.327 mW. The results show that a stable pulse was generated with repetition rate starts at about 9.606 kHz and ends at about 44.72 kHz and very narrow pulse width between 40.01 µs and 9.84 µs and pulse energy 80 nJ. Clearly, the stability of the Q-switched pulse train was achieved because the BP-SA film was inserted in the laser ring cavity.

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Q-switching of a thulium-doped fibre laser using a holmium-doped fibre saturable absorber

Cited by 20 publications

References 11 publications

Bismuth‐doped fiber as Q‐switcher in hafnium bismuth erbium co‐doped fiber laser

Bismuth‐doped fiber as Q‐switcher in hafnium bismuth erbium co‐doped fiber laser

Stable pulse output of a diode-pumped Tm:YAP laser based on the longitudinal mode beating effect

Black Phosphorus Saturable Absorber for Pulse Generation Using Q-switched Teachnique

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