Self-Q-switching of a loop laser cavity with a self-pumped four-wave phase-conjugate mirror in an active laser medium

Ershkov, M. N.; Solokhin, S. A.; Smetanin, S. N.

doi:10.1134/s0030400x15090088

Cited by 2 publications

(1 citation statement)

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“…It is equipped with a simple structure and is low cost in comparison with other Q-switching methods. In this technique [19], no special modulation elements are required inside the laser cavity to initiate and sustain the pulse mechanism. The laser cavity simply consists of a pump source, a suitable gain medium, and an optical resonator.…”

Section: Introductionmentioning

confidence: 99%

Self Q-switched characteristic based on single longitudinal DBR erbium-doped fiber laser with narrow linewidth pulse output

Lyu¹,

Zhang²,

Zhang³

et al. 2017

Laser Phys.

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The self Q-switched characteristic of the single longitudinal-mode distributed Bragg reflector (DBR) erbium-doped fiber laser (EDFL) with narrow linewidth pulse output is demonstrated without any extra saturable absorber or electro-optic and acoustic-optic modulator, and it is provided with a simpler structure and lower cost. The proposed pulse laser operates at approximately 1550.33 nm with a 20 dB bandwidth of 0.56 nm and signal-to-noise ratio of about 55 dB. By increasing the 980 nm pump power from 80-330 mW, the repetition rate of the output pulse increases from 73.53-147.1 kHz while the pulse width decreases from 1.4-0.2 µs, which shows the feature of the narrow linewidth ideally. The maximum pulse energy of 0.379 nJ and peak power of 1897.2 µW are generated with a repetition rate and pulse width of 147.1 kHz and 0.2 µs, respectively. The result shows that the self Q-switched pulse of the DBR EDFL is obviously dependent on the applied pump power and possesses the characteristic of the single longitudinal mode and the narrow linewidth, offering potential utilization in industrial processing and scientific research.

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Section: Introductionmentioning

confidence: 99%