Passively mode locked operation of diode pumped Nd:YVO<sub>4</sub> laser using either second harmonic nonlinear mirror or semiconductor saturable absorber

Alena Zavadilova; Vaclav Kubecek; Jean-Claude Diels; Andreas Stintz

doi:10.1117/12.675741

18 April 2006 Passively mode locked operation of diode pumped Nd:YVO₄ laser using either second harmonic nonlinear mirror or semiconductor saturable absorber

Alena Zavadilova, Vaclav Kubecek, Jean-Claude Diels, Andreas Stintz

Author Affiliations +

Proceedings Volume 6180, Photonics, Devices, and Systems III; 61801M (2006) https://doi.org/10.1117/12.675741
Event: Photonics, Devices, and Systems III, 2005, Prague, Czech Republic

Abstract

Results of experimental investigation of diode pumped Nd:YVO₄ laser passively mode locked using either second harmonic nonlinear mirror or semiconductor saturable absorber are reported. As an active element the 5mm long Nd:YVO₄ crystal end pumped by 20 W fiber coupled laser diode was used. The linear folded resonator has on the other end either saturable absorber with single 15 nm thick In _0.25 Ga_0.75 As quantum well layer integrated on the top of Bragg mirror (SESAM) either nonlinear mirror (NLM) consisting of a dichroic dielectric mirror and 10 mm long type I LBO crystal critically phase matched for second harmonic generation. Using the nonlinear mirror the threshold for mode locked operation was 10 W of pump power and we obtained 4.5 W of output power with single pulse duration of 6.2 Ps for pump power of 15 W. Using the SESAM the pulse duration of 13-16 ps was achieved for pump power from 3W to 18 w for low output coupling.

Citation Download Citation

Alena Zavadilova, Vaclav Kubecek, Jean-Claude Diels, and Andreas Stintz "Passively mode locked operation of diode pumped Nd:YVO₄ laser using either second harmonic nonlinear mirror or semiconductor saturable absorber", Proc. SPIE 6180, Photonics, Devices, and Systems III, 61801M (18 April 2006); https://doi.org/10.1117/12.675741

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