Passively Q-switched erbium-doped fiber laser using a graphene saturable absorber

Dong, Zheng; Li, H. P.; Xia, Handing; Liu, Y.; Wang, Z. G.; Chen, Y. F.

doi:10.1364/acp.2012.as1a.2

Cited by 7 publications

(2 citation statements)

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“…Graphene has outstanding linear and non-linear optical properties, such as low threshold level of saturable absorption ( ∼0.7 MW cm −2 ), ultrafast recovery time (200 fs) and an ultrabroad wavelength independent saturable absorption range, which covers the wavelength range from the visible to the mid-IR [15,16]. Recent demonstrations of passively mode-locked or Q-switched fibre lasers focused on the operation in 1 µm [17,18] and 1.5 µm [19,20] region. To date, only a few works on the generation of Q-switched fibre laser near 2 µm wavelength region have been reported.…”

Section: Introductionmentioning

confidence: 99%

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Q‐switched thulium‐doped fibre laser operating at 1900 nm using multi‐layered graphene based saturable absorber

Saidin

Zen

Ahmad

et al. 2014

IET Optoelectronics

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A stable passive Q-switched thulium-doped fibre laser (TDFL) operating at the 1900 nm region is demonstrated by using a multi-layer graphene film-based saturable absorber (SA). The graphene is synthesised by electrochemical exfoliation of graphite at room temperature in 1% sodium dodecyl sulphate aqueous solution. Graphene flakes obtained from the process are mixed with polyethylene oxide as the host polymer to produce free standing composite thin film which acts as a passive Q-switcher in the TDFL ring cavity. At 793 nm pump power of 186 mW, the TDFL generates an optical pulse train with a repetition rate of 7.5 kHz, pulse width of 19.7 μs and a pulse energy of 66.6 nJ. A higher performance Q-switched TDFL could be achieved with the optimisation of the graphene SA and the laser cavity.

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Section: Introductionmentioning

confidence: 99%

“…and 1.5 µm[19,20] region. To date, only a few works on the generation of Q-switched fibre laser near 2 µm wavelength region have been reported.…”

mentioning

confidence: 99%

Q‐switched thulium‐doped fibre laser operating at 1900 nm using multi‐layered graphene based saturable absorber

Saidin

Zen

Ahmad

et al. 2014

IET Optoelectronics

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Q‐switched erbium doped fiber laser using single‐walled carbon nanotubes embedded in polyethylene oxide film saturable absorber

Ahmed

Salleh

Ali

et al. 2014

Micro & Optical Tech Letters

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We demonstrate simple, compact, and low cost passively Q‐switched erbium doped fiber lasers (EDFLs) using a single‐walled carbon nanotubes based saturable absorber (SA), which is prepared using polyethylene oxide as host polymer. The EDFL starts to generate a stable Q‐switching pulse at pump power of 30.8 mW operating at wavelength of 1533.7 nm. The repetition rate of the Q‐switching pulse can be tuned from 8.0 to 29.4 kHz by increasing the pump power from 30.8 to 69.5 mW while the pulse width drops from 24.2 to 11.2 µs. At the maximum pump power of 69.5 mW, the EDFL produces the maximum pulse energy of 93.9 nJ. Besides showing good Q‐switching performance, the SA is easy to fabricate and cheap. This makes the proposed EDFL suitable for applications in metrology, environmental sensing, and biomedical diagnostics. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2734–2737, 2014

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Titanium carbide MXene for generating Q‐switched pulses in erbium‐doped fiber laser cavity

Sahib

Zulkipli

Rosol

et al. 2021

Micro & Optical Tech Letters

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In this paper, a new thin‐film saturable absorber (SA) that belongs to the MXene family is used to generate Q‐switched laser pulses. In constructing the SA, titanium carbide (Ti3C2Tx) powder obtained through a selective etching process is dispersed in polyvinyl alcohol solution before the mixture is dried to form a thin film. A small piece of the film is placed between two fiber ferrules to form a SA device and added to a laser cavity of an erbium‐doped fiber laser to produce Q‐switched pulses in the region of 1561 nm. The repetition rate of the pulses can be varied between 45.25 and 65.59 kHz with the corresponding pulse width of 5.04–3.11 μs when the pump power is increased from 29.8 to 66.3 mW. At the maximum output power of 8.17 mW, the highest pulse energy of 125 nJ is obtained.

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Passively Q-switched erbium-doped fiber laser using a graphene saturable absorber

Cited by 7 publications

References 0 publications

Q‐switched thulium‐doped fibre laser operating at 1900 nm using multi‐layered graphene based saturable absorber

Q‐switched thulium‐doped fibre laser operating at 1900 nm using multi‐layered graphene based saturable absorber

Q‐switched erbium doped fiber laser using single‐walled carbon nanotubes embedded in polyethylene oxide film saturable absorber

Titanium carbide MXene for generating Q‐switched pulses in erbium‐doped fiber laser cavity

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