Ultrafast laser writing of homogeneous longitudinal waveguides in glasses using dynamic wavefront correction

Cyril Mauclair 1 Alexandre Mermillod-Blondin 1 Nicolas Huot 1 Eric Audouard 1 Razvan Stoian 1, *
* Corresponding author
1 LHC - Laboratoire Hubert Curien [Saint Etienne]
Abstract : Laser writing of longitudinal waveguides in bulk transparent materials degrades with the focusing depth due to wavefront distortions generated at the air-dielectric interface. Using adaptive spatial tailoring of ultrashort laser pulses, we show that spherical aberrations can be dynamically compensated in optical glasses, in synchronization with the writing procedure. Aberration-free structures can thus be induced at different depths, showing higher flexibility for 3D processing. This enables optimal writing of homogeneous longitudinal waveguides over more significant lengths. The corrective process becomes increasingly important when laser energy has to be transported without losses at arbitrary depths, with the purpose of triggering mechanisms of positive refractive index change.
Keywords : Femtosecond phenomena Adaptive optics Laser materials processing Aberration compensation Femtosecond phenomena.
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Journal articles
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https://hal-ujm.archives-ouvertes.fr/ujm-00270505
Contributor : Razvan Stoian <>
Submitted on : Friday, April 4, 2008 - 7:20:03 PM
Last modification on : Wednesday, November 20, 2019 - 2:52:52 AM

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Cyril Mauclair, Alexandre Mermillod-Blondin, Nicolas Huot, Eric Audouard, Razvan Stoian. Ultrafast laser writing of homogeneous longitudinal waveguides in glasses using dynamic wavefront correction. Optics Express, Optical Society of America, 2008, 16 (8), pp.5841. ⟨ujm-00270505⟩

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