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Kvantovaya Elektronika, 2020, Volume 50, Number 8, Pages 734–741 (Mi qe17291)  

This article is cited in 1 scientific paper (total in 1 paper)

Control of laser radiation parameters

Optomechanical interaction in fibre lasers with micro-optomechanical resonance structures

F. A. Egorov, V. T. Potapov

Kotelnikov Institute of Radioengineering and Electronics, Fryazino Branch, Russian Academy of Sciences
References:
Abstract: We report the results of studies of fibre lasers with passive modulators based on light-excited micro-optomechanical resonance structures (micro-oscillators). It is shown that in fibre lasers based on active fibres doped with rare-earth elements (Er, Er/Yb, Yb, Nd), the optomechanical interaction of laser radiation with micro-oscillators of various types (fibre-optic, microvolume) leads to self-oscillations of the characteristics of laser radiation at frequencies of relaxation oscillations and intermode beats synchronised with the frequencies of elastic eigenoscillations of micro-oscillators. It is found that in an ultra-long erbium – ytterbium fibre laser with a nonlinear mirror based on a microcantilever, laser photothermal excitation of the second mode of elastic transverse oscillations of the microcantilever makes it possible to perform passive mode locking exclusively due to Q-switching of the laser cavity. Pulsed lasing with a controlled repetition rate (~76 kHz), a pulse duration of 2 – 5 μs and an output energy of 0.1 μJ per pulse is implemented. Based on a simplified physical model of the indicated fibre lasers with micro-oscillators, we have developed an approximate mathematical model describing the regimes of passive mode locking of fibre lasers with micro-oscillators that play the role of mirrors with a nonlinear reflection coefficient in the laser cavity. The prospects for the development and application of the considered laser systems are discussed.
Keywords: fibre laser, micromechanical resonator, optomechanical interaction, passive Q-switching, mode locking, resonance, selfoscillation.
Received: 27.08.2019
Revised: 05.12.2019
English version:
Quantum Electronics, 2020, Volume 50, Issue 8, Pages 734–741
DOI: https://doi.org/10.1070/QEL17116
Bibliographic databases:
Document Type: Article
Language: Russian


Citation: F. A. Egorov, V. T. Potapov, “Optomechanical interaction in fibre lasers with micro-optomechanical resonance structures”, Kvantovaya Elektronika, 50:8 (2020), 734–741 [Quantum Electron., 50:8 (2020), 734–741]
Linking options:
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  • https://www.mathnet.ru/eng/qe/v50/i8/p734
  • This publication is cited in the following 1 articles:
    Citing articles in Google Scholar: Russian citations, English citations
    Related articles in Google Scholar: Russian articles, English articles
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