Fabrication of Nd,Cr codoped GGG waveguide structure by nanosecond KrF laser deposition

Tomoyuki Shimoda; Sachiyo Fukaya; Yoshihisa Ishida; Yong Pyung Kim; Minoru Obara

doi:10.1117/12.407356

16 August 2000 Fabrication of Nd,Cr codoped GGG waveguide structure by nanosecond KrF laser deposition

Tomoyuki Shimoda, Sachiyo Fukaya, Yoshihisa Ishida, Yong Pyung Kim, Minoru Obara

Proceedings Volume 4065, High-Power Laser Ablation III; (2000) https://doi.org/10.1117/12.407356
Event: High-Power Laser Ablation, 2000, Santa Fe, NM, United States

Abstract

The Nd³⁺, Cr⁴⁺ co-doped GGG epitaxial thin films for self Q-switched waveguide laser has been fabricated by a two-target pulsed laser deposition (PLD) method. The concentrations of Nd and Cr ion in the co-doped GGG thin films are well controlled by changing respective KrF laser ablation fluence and repetition rate for Nd:GGG and Cr,Ca:GGG sintered targets. The structure of Nd,Cr:GGG thin films on YAG substrate shows a planar waveguide structure with high numerical aperture. It is confirmed that Nd³⁺ and Cr⁴⁺ ions are optically active as laser active ions and saturable absorbers respectively at 1.06 micrometer to be used for monolithic self-Q-switched waveguide laser to generate high peak power and short pulse output.

Citation Download Citation

Tomoyuki Shimoda, Sachiyo Fukaya, Yoshihisa Ishida, Yong Pyung Kim, and Minoru Obara "Fabrication of Nd,Cr codoped GGG waveguide structure by nanosecond KrF laser deposition", Proc. SPIE 4065, High-Power Laser Ablation III, (16 August 2000); https://doi.org/10.1117/12.407356

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