Laser emission from diode-pumped Nd:YAG ceramic waveguide lasers realized by direct femtosecond-laser writing technique | Zendy

Gabriela Salamu | Zendy; Florin Jipa | Zendy; M. Zamfirescu | Zendy; N. Pavel | Zendy

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Laser emission from diode-pumped Nd:YAG ceramic waveguide lasers realized by direct femtosecond-laser writing technique

Author(s) -

Gabriela Salamu,

Florin Jipa,

M. Zamfirescu,

N. Pavel

Publication year - 2014

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.22.005177

Subject(s) - materials science , laser , optics , cladding (metalworking) , femtosecond , optoelectronics , laser pumping , laser power scaling , diode pumped solid state laser , waveguide , physics , metallurgy

We report on realization of buried waveguides in Nd:YAG ceramic media by direct femtosecond-laser writing technique and investigate the waveguides laser emission characteristics under the pump with fiber-coupled diode lasers. Laser pulses at 1.06 μm with energy of 2.8 mJ for the pump with pulses of 13.1-mJ energy and continuous-wave output power of 0.49 W with overall optical efficiency of 0.13 were obtained from a 100-μm diameter circular cladding waveguide realized in a 0.7-at.% Nd:YAG ceramic. A circular waveguide of 50-μm diameter yielded laser pulses at 1.3 μm with 1.2-mJ energy.

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