Fabrication of photonic devices directly written in glass using ultrafast Bessel beams

Véronique Zambon; Nathalie McCarthy; Michel Piché

doi:10.1117/12.807194

12 August 2008 Fabrication of photonic devices directly written in glass using ultrafast Bessel beams

Véronique Zambon, Nathalie McCarthy, Michel Piché

Proceedings Volume 7099, Photonics North 2008; 70992J (2008) https://doi.org/10.1117/12.807194
Event: Photonics North 2008, 2008, Montréal, Canada

Abstract

Optical waveguides have been inscribed in fused silica by focusing femtosecond laser pulses with an axicon. The axicon is a conical lens that allows obtaining an optical beam with a transverse intensity profile that follows a zero-order Bessel function. This profile is invariant along a certain distance (>1 cm). The advantage of using axicon is that the beam is focused along a narrow focal line of a few micron width. Therefore the inscription of waveguides can be done without moving the glass sample. The waveguides so fabricated exhibit low losses and no detectable birefringence due their excellent circular symmetry. By translating the glass sample during the inscription process, we have induced a refractive index change along a thin plane in order to fabricate planar waveguides.

Citation Download Citation

Véronique Zambon, Nathalie McCarthy, and Michel Piché "Fabrication of photonic devices directly written in glass using ultrafast Bessel beams", Proc. SPIE 7099, Photonics North 2008, 70992J (12 August 2008); https://doi.org/10.1117/12.807194

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