Femtosecond laser writing of polarization devices for optical circuits in glass

• Type: Article in International Conference Proceedings Book
• Date: 2012

Authors

Fernandes, LA (Author) Other; Grenier, JR (Author) Other; Herman, PR (Author) Other; Aitchison, JS (Author) Other; Marques, PVS (Author) FCUP

Conference proceedings International

Title: Proceedings of SPIE - The International Society for Optical Engineering

Frontiers in Ultrafast Optics: Biomedical, Scientific, and Industrial Applications XII

San Francisco, CA, 22 January 2012 through 25 January 2012

Indexing

ISI Web of Knowledge

Scopus - 4 Citations

Other information

Authenticus ID: P-008-45A

DOI: 10.1117/12.907517

Abstract (EN): In this paper we examine the birefringence of buried optical waveguides written with femtosecond lasers in bulk fused silica glass. We report two modes of low and high birefringence associated with strong form birefringence and the orientation of nanogratings that align perpendicular to the writing laser polarization. The birefringence and waveguide losses are characterized over various laser exposure conditions to facilitate the fabrication of low-loss and compact wave retarders and polarization beam splitters for integration into polarization controlled circuits. Zero-order quarter-wave and half-wave retarders together with polarization beam splitters are demonstrated, all operating at telecom wavelengths. Integration of such devices is targeted for application in photonic quantum circuits. © 2012 SPIE.

Language: English

Type (Professor's evaluation): Scientific