Title :
Femtosecond direct laser writing of buried diffractive optical elements in glasses
Author :
Ng, M.L. ; Eaton, S.M. ; Chanda, D. ; Herman, P.R.
Author_Institution :
Toronto Univ., Toronto
Abstract :
This paper reports direct laser writing of buried DOEs in Corning 7980 fused silica (n=1.457), and Ohara S-TIH6 glass (n=1.799) with a focused Yb-fiber amplified femtosecond laser (IMRA FCPA muJewel), at various repetition rates (0.1 to 1 MHz). These glasses were examined with the purpose of providing high index contrast with submicron features that enable high resolution DOE applications in the visible spectrum.
Keywords :
diffraction gratings; diffractive optical elements; fibre lasers; high-speed optical techniques; laser materials processing; optical fabrication; optical focusing; optical glass; refractive index; ytterbium; Corning 7980 fused silica glass; JkJk:Yb; Ohara S-TIH6 glass; buried DOE; buried diffractive optical elements; femtosecond direct laser writing; focused Yb-fiber amplified femtosecond laser; high index contrast; high resolution DOE applications; visible spectrum; volume gratings; Glass; Gratings; Laser theory; Optical diffraction; Optical refraction; Optical variables control; Refractive index; Silicon compounds; Ultrafast optics; Writing;
Conference_Titel :
Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on
Conference_Location :
Munich
Print_ISBN :
978-1-4244-0931-0
Electronic_ISBN :
978-1-4244-0931-0
DOI :
10.1109/CLEOE-IQEC.2007.4386209
