Title :
Femtosecond laser writing of optical waveguides using astigmatic-elliptical beams produced by a phase-only spatial light modulator
Author :
De La Cruz, A. Ruiz ; Ferrer, A. ; Galvan-Sosa, M. ; Puerto, D. ; Gawelda, W. ; Siegel, J. ; Solis, J.
Author_Institution :
Laser Process. Group, Inst. de Opt.-CSIC, Madrid, Spain
Abstract :
In this work, we have analysed the feasibility of producing waveguides by direct fs-laser writing using astigmatic-elliptical beams generated with a SLM. As a consequence of the beam astigmatism two foci laying in orthogonal planes are produced, whose separation along the beam propagation axis and length-to-width aspect ratio can be controlled through the amount of astigmatic deformation of the wavefront.
Keywords :
aberrations; high-speed optical techniques; laser materials processing; optical fabrication; optical waveguides; spatial light modulators; astigmatic wavefront deformation; astigmatic-elliptical beam generation; beam propagation axis; femtosecond laser writing; length-to-width aspect ratio; optical waveguides; orthogonal planes; phase-only spatial light modulator; Laser beams; Optical modulation; Optical refraction; Optical variables control; Optical waveguides; Phase modulation; Pulse amplifiers; Ultrafast optics; Waveguide lasers; Writing;
Conference_Titel :
Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-4079-5
Electronic_ISBN :
978-1-4244-4080-1
DOI :
10.1109/CLEOE-EQEC.2009.5192103
