Passive synchronization of fiber laser modes by a microcavity reflector

Egorov, F. A.; Потапов, В. Т.

doi:10.1134/s1063785009090144

Tech. Phys. Lett.

2009

DOI: 10.1134/s1063785009090144

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Passive synchronization of fiber laser modes by a microcavity reflector

F. A. Egorov

В. Т. Потапов

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Optomechanical interaction in fibre lasers with micro-optomechanical resonance structures

Egorov¹,

Потапов²

2020

Quantum Electron.

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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.

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Optomechanical interaction in fibre lasers with micro-optomechanical resonance structures

Egorov¹,

Потапов²

2020

Quantum Electron.

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Fiber-optic sensors based on fiber-optic lasers and microoptomechanical resonance structures

Egorov

Потапов

2011

Laser Phys.

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Passive synchronization of fiber laser modes by a microcavity reflector

Cited by 2 publications

References 0 publications

Optomechanical interaction in fibre lasers with micro-optomechanical resonance structures

Optomechanical interaction in fibre lasers with micro-optomechanical resonance structures

Fiber-optic sensors based on fiber-optic lasers and microoptomechanical resonance structures

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