Efficient lasing in Nd:GdVO4 depressed cladding waveguides produced by femtosecond laser writing

Hongliang Liu; Javier R. Vázquez de Aldana; Feng Chen

doi:10.1117/12.2049489

1 May 2014 Efficient lasing in Nd:GdVO₄ depressed cladding waveguides produced by femtosecond laser writing

Hongliang Liu, Javier R. Vázquez de Aldana, Feng Chen

Proceedings Volume 9133, Silicon Photonics and Photonic Integrated Circuits IV; 913315 (2014) https://doi.org/10.1117/12.2049489
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We report on waveguide lasers at 1064.5 nm in femtosecond laser written double cladding waveguides in Nd:GdVO₄ crystals. The core waveguide guides both TE and TM polarized modes with considerably symmetric single modal profiles, and show good transmission property (propagation loss as low as 1.0 dB/cm). Under the optical pumping at 808 nm, maximum output power up to 0.43 W of the continuous wave waveguide laser with a slope efficiency of 52.3% have been achieved, which is 21.6% and 23% higher than those of the laser generated from single depressed cladding waveguide, respectively. Furthermore, the maximum output power of the waveguide laser is 72% higher than that of the double-line waveguide.

Citation Download Citation

Hongliang Liu, Javier R. Vázquez de Aldana, and Feng Chen "Efficient lasing in Nd:GdVO₄ depressed cladding waveguides produced by femtosecond laser writing", Proc. SPIE 9133, Silicon Photonics and Photonic Integrated Circuits IV, 913315 (1 May 2014); https://doi.org/10.1117/12.2049489

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