Assessment of Rayleigh and non-Rayleigh Contributions to the Transmission Losses in fs-Laser Written Er/Yb-Codoped Phosphate Glass Waveguides

作者：Valles Juan A^*; Solis Javier; Sanchez Martin Jose A; Ruiz De La Cruz Alexandro; Rebolledo Miguel A; Ferrer Andres

来源：Journal of Laser Micro Nanoengineering, 2010, 5(1): 39-42.

DOI：10.2961/jlmn.2010.01.0009

• fs-laser writing
• active integrated waveguides
• characterization techniques
• rare earth ions
• optical amplifiers

A detailed characterization procedure based on the numerical fit of a reduced number of measurements has been applied to two fs-laser written Er/Yb-codoped phosphate glass waveguides. One of them was written in a single scan writing process using higher peak power pulses, and the other one by using lower energy pulses and scanning the laser repetitively over the same region 20 times. The relative weight of non-Rayleigh transmission-loss mechanisms is analyzed for the different processing conditions. As a result of these measurements a quality parameter for fs-laser written active waveguides is proposed.

• 出版日期2010-2