Temperature dependence of femtosecond laser induced refractive index change in Nd3+-doped phosphate glass

✍ Scribed by Quan-Zhong Zhao; Jian-Rong Qiu; Xiong-Wei Jiang; Qin-Ling Zhou; Chong-Jun Zhao; Cong-Shan Zhu

• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 304 KB
• Volume: 27
• Category: Article
• ISSN: 0925-3467
• DOI: 10.1016/j.optmat.2004.09.011

✦ Synopsis

We report refractive index change in a femtosecond laser irradiated Nd 3+ -doped phosphate glass. The effects of annealing temperature on the refractive index change of the glass have been investigated. Absorption spectra of the glass sample before and after femtosecond laser irradiation and subsequent annealing were measured. The results indicate that multiphoton absorption can undertake although there are intrinsic absorption for the glass in irradiation wavelength. The results may be useful for fabrication of three-dimensional integrated optics devices and waveguide laser devices in this glass.