Experimental observations of dual-polarization oscillations in laser-diode-pumped wide-aperture thin-slice Nd:GdVO_4 lasers | Zendy

Jing-Yuan Ko | Zendy; Chi-Ching Lin | Zendy; Kenju Otsuka | Zendy; Yoshihiko Miyasaka | Zendy; Koji Kamikariya | Zendy; K. Nemoto | Zendy; MingChung Ho | Zendy; I-Min Jiang | Zendy

Open Access

Experimental observations of dual-polarization oscillations in laser-diode-pumped wide-aperture thin-slice Nd:GdVO_4 lasers

Author(s) -

Jing-Yuan Ko,

Chi-Ching Lin,

Kenju Otsuka,

Yoshihiko Miyasaka,

Koji Kamikariya,

K. Nemoto,

MingChung Ho,

I-Min Jiang

Publication year - 2007

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.15.000945

Subject(s) - optics , lasing threshold , laser , materials science , polarization (electrochemistry) , diode , oscillation (cell signaling) , aperture (computer memory) , semiconductor laser theory , optical pumping , physics , optoelectronics , chemistry , biology , genetics , acoustics

Dual-polarization oscillations (DPO) on different transitions have been observed for the first time in a mirror-coated thin-slice Nd:GdVO(4) laser possessing a large fluorescence anisotropy with laser-diode (LD) pumping. Oscillation spectra, input-output characteristics, pump-dependent pattern formations and noise power spectra are studied experimentally. Simultaneous oscillations of orthogonally-polarized different (higher-order) transverse modes and the resultant violation of inherent antiphase dynamics in multimode lasers have been demonstrated. The experimental results have been explained in terms of the reduced three-dimensional cross-saturation of population inversions among orthogonally-polarized modes peculiar to LD-pumped wide-aperture anisotropic lasers, in which a pumped area is larger than a lasing beam diameter.

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