Nonlinear spectrum broadening of femtosecond laser pulses in photorefractive waveguide arrays

Autor(en)

Zhen-Hua Wang, Qiang Wu, Chengliang Yang, Xin-Zheng Zhang, Zhigang Chen, Romano Rupp, Jing-Jun Xu

Abstrakt

In photorefractive waveguide arrays, the process and extent of spectral broadening of femtosecond laser pulse caused by self-phase modulation are studied theoretically and experimentally. The threshold of self-phase modulation is more than two times larger than the common threshold in a bulk sample, which affects the extent of spectral broadening dramatically. The coupling length and the ratio between the common threshold and the input peak intensity of the femtosecond laser pulse are the two key parameters dominating these phenomena. The experimental results confirm the theoretical expectation.

Organisation(en)

Physik Funktioneller Materialien

Externe Organisation(en)

Nankai University

Journal

Optics Express

Band

18

Seiten

10112-10119

Anzahl der Seiten

8

DOI

https://doi.org/10.1364/OE.18.010112

Publikationsdatum

2010

Peer-reviewed

Ja

ÖFOS 2012

1030 Physik, Astronomie

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/bdd82875-838f-489f-ba6c-49a64dcfec96