Femtosecond laser fabrication of birefringent directional couplers as polarization beam splitters in fused silica

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Luis A Fernandes (Author) Other; Jason R Grenier (Author) Other; Peter R Herman (Author) Other; Stewart S Aitchison (Author) Other; Paulo V S Marques (Author) FCUP

Journal

Title: Optics Express

Vol. 19

Pages: 11992-11999

ISSN: 1094-4087

Publisher: Optical Society of America

Indexing

ISI Web of Knowledge - 61 Citations

Scopus - 66 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-002-QE2

DOI: 10.1364/oe.19.011992

Abstract (EN): Integrated polarization beam splitters based on birefringent directional couplers are demonstrated. The devices are fabricated in bulk fused silica glass by femtosecond laser writing (300 fs, 150 nJ at 500 kHz, 522 nm). The birefringence was measured from the spectral splitting of the Bragg grating resonances associated with the vertically and horizontally polarized modes. Polarization splitting directional couplers were designed and demonstrated with 0.5 dB/cm propagation losses and -19 dB and -24 dB extinction ratios for the polarization splitting. (C) 2011 Optical Society of America

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8