Passively high-power Q-switching in Er- and Er/Yb doped fiber with CdTe

Ahmad, Harith; Mansor, Nur Hidayah; Reduan, Siti Aisyah; Samion, Muhamad Zharif; Yusoff, Norazriena; Bayang, Leonard

doi:10.1016/j.optlastec.2022.108510

Cited by 2 publications

(2 citation statements)

References 43 publications

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“…The SESAM provides several benefits, such as being compact, robust and free from optical alignment, and portable. [26][27][28] As an alternative to SESAM, the other saturable absorbers such as twodimensional (2D) materials, specifically, topological insulators (TIs), 2D ternary tellurides, have attracted a lot of attentions due to the virtues of low cost and ideal nonlinear optical properties. [29][30][31] Li et al added a few-layer Bi 2 Se 3 (which is a kind of TIs) saturable absorber in the ring cavity to achieve passive Q-switching, and used an un-pumped erbium-doped fiber together with a 0.06-nm-bandwidth fiber Bragg grating as an ultra-narrow filter to obtain single-frequency pulsed laser with a central wavelength of 1550 nm and a pulse duration of 2.54 µs.…”

Section: Introductionmentioning

confidence: 99%

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

et al. 2023

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We report a single-frequency linearly polarized Q-switched fiber laser based on a Nb2GeTe4 saturable absorber (SA). The Nb2GeTe4 SA triggers passive Q-switching of the laser, and an un-pumped Yb-doped fiber together with a 0.08-nm-bandwidth polarization-maintaining fiber Bragg grating act as an ultra-narrow bandwidth filter to realize single-longitudinal-mode (SLM) oscillation. The devices used in the laser are all polarization-maintaining to ensure linearly polarized laser output. Stable SLM linearly polarized Q-switching operation at 1064.6 nm is successfully achieved with a shortest pulse width of 1.36 μs, a linewidth of 28.4 MHz, a repetition rate of 28.3-95.9 kHz, and a polarization extinction ratio of about 30 dB. It is believed that the single-frequency linearly polarized pulsed fiber laser studied in this paper has great application value in gravitational wave detection, beam combining, nonlinear frequency conversion, and other fields.

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Section: Introductionmentioning

confidence: 99%

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

et al. 2023

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“…Researchers achieved single-frequency pulsed laser output at 1 μm and 2 μm by pumping a linear cavity with a pulsed laser source [12], [13], [14]. Q-switched operation of fiber lasers can be divided into passively and actively mechanism [15]. Passively Q-switched fiber lasers generally use passive complements such as semiconductor saturable absorber mirrors (SESAMs) or saturable absorbers (SAs) to realize pulsed laser output.…”

Section: Introductionmentioning

confidence: 99%

Single-Frequency Linearly-Polarization Q-Switched Nanosecond Fiber Ring-Cavity Laser Enabled by an Electro-Optic Modulator

Chen

Zhang

et al. 2023

IEEE Photonics J.

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We report a single-frequency linearly-polarized nanosecond fiber ring-cavity laser based on an electro-optic modulator. A 0.08-nm-bandwidth fiber Bragg grating combined with a section of 1-m unpumped Yb-doped fiber act as an ultra-narrow bandwidth filter to realize single-frequency laser output. The devices used in the experiments are all polarization-maintaining to ensure the linearly-polarized laser output. Pulsed laser is obtained by using electro-optic modulator to adjust the loss in the laser cavity periodically. And the repetition rate of pulse trains can be flexibly changed from 550 to 1000 kHz with a pulse width of 27-59 ns. By varying the amplitude of the arbitrary function generator, we obtained a single-frequency pulsed laser output with a pulse width of 51-493 ns. The linewidth of the laser is 31.8 MHz, and the polarization extinction ratio was better than 20 dB.

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Passively high-power Q-switching in Er- and Er/Yb doped fiber with CdTe

Cited by 2 publications

References 43 publications

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Single-Frequency Linearly-Polarization Q-Switched Nanosecond Fiber Ring-Cavity Laser Enabled by an Electro-Optic Modulator

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Passively high-power Q-switching in Er- and Er/Yb doped fiber with CdTe

Cited by 2 publications

References 43 publications

Single-frequency linearly polarized Q-switched fiber laser based on Nb2GeTe4 saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb2GeTe4 saturable absorber

Single-Frequency Linearly-Polarization Q-Switched Nanosecond Fiber Ring-Cavity Laser Enabled by an Electro-Optic Modulator

Contact Info

Product

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Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber

Single-frequency linearly polarized Q-switched fiber laser based on Nb₂GeTe₄ saturable absorber