Polarization dynamics of Nd:YAG laser with weakly anisotropic Fabry-Perot cavity

Khandokhin, P. A.; Milovsky, N. D.; Mamaev, Yu. A.; Ovchinnikov, E.; Shirokov, Evgeny Yu

doi:10.1117/12.334797

Cited by 10 publications

(3 citation statements)

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“…34,35) On the other hand, the pump-induced gain anisotropy could manifest itself in the dependence of the lasing thresholds and the polarization mode intensities on the pump polarization orientation. 36,37) Therefore, pump polarization offers another degree of freedom for controlling the lasing characteristics of miniature waveguide lasers.…”

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confidence: 99%

Wavelength-switchable 9.5 GHz graphene mode-locked waveguide laser

Ponarina¹,

Охримчук²,

Alagashev³

et al. 2021

Appl. Phys. Express

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A multi-wavelength compact ultrafast laser based on a single-mode waveguide inscribed in Nd:YAG and graphene saturable absorber is developed. By changing the pump parameters, we demonstrate single-, dual-and multi-wavelength mode-locking regimes. Accurate control of intracavity losses provides stable CW passive mode-locking at a wavelength of 1064 nm and dual-wavelength mode-locking at 1061 and 1064 nm with a pulse repetition rate of 9.5 GHz.

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confidence: 99%

Wavelength-switchable 9.5 GHz graphene mode-locked waveguide laser

Ponarina¹,

Охримчук²,

Alagashev³

et al. 2021

Appl. Phys. Express

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“…The polarization cross-saturation coefficient β is one of the key parameters to describe the behaviors of multimode lasers or laser eigenstates. Indeed, this coefficient characterizes the coupling between two laser fields that, for instance, induces antiphase polarization dynamics between laser eigenstates in all kinds of lasers [1][2][3][4][5]. Similar behavior can also be seen in multimode lasers, where antiphase dynamics appears between different longitudinal modes [6].…”

Section: Introductionmentioning

confidence: 82%

Measurement of a polarization cross-saturation coefficient in two-mode Nd:YAG lasers by polarized optical feedback

Tan¹,

Zhang²,

Ren³

et al. 2008

J. Phys. B: At. Mol. Opt. Phys.

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We demonstrate experimentally that both the intensities of the two modes in Nd:YAG lasers are modulated reversely with unequal depths, which relates to the cross-saturation effect between these two laser fields, when the laser is subjected to polarized optical feedback (POF). We show that, remarkably, the results can be interpreted by a multimode rate equation model considering the coupling between two laser fields and the external optical feedback. An original and simple method of measuring the polarization cross-saturation coefficient is performed based on POF. This method is applicable to most kinds of lasers. Moreover, polarization switching is observed under higher optical feedback. Our numerical results are in very good agreement with the experiments.

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“…The interplay of the polarization degrees of freedom can lead to antiphase oscillations between two orthogonal polarization eigenstates in a great variety of lasers, such as fiber lasers [1,2], Nd:YAG lasers [3,4], VCSELs [5], CO 2 lasers [6], and Nd-doped microchip glass lasers [7]. Examples of applications based on polarization dynamics are transmission of encoded information [8,9], heterodyne detection systems [10], Doppler velocimetry [11], and optical microwave systems [12].…”

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confidence: 99%