Spectral characteristics of optical waveguides fabricated in glass by femtosecond laser direct writing

• Type: Article in International Conference Proceedings Book
• Date: 2019

Authors

Amorim, VA (Author) Other; Viveiros, D (Author) FCUP; Maia, JM (Author) Other; Marques, PVS (Author) FCUP

Conference proceedings International

Title: FOURTH INTERNATIONAL CONFERENCE ON APPLICATIONS OF OPTICS AND PHOTONICS

4th International Conference on Applications of Optics and Photonics (AOP)

Univ Lisbon, Lisbon, PORTUGAL, MAY 31-JUN 04, 2019

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Other information

Authenticus ID: P-00R-8AB

DOI: 10.1117/12.2527400

Abstract (EN): The fabrication of optical waveguides with femtosecond laser direct writing is reported in two materials, Suprasil1 and Eagle2000. The influence of typical fabrication parameters, such as pulse energy and scan velocity, on the waveguide's spectral characteristics is explored from 500 to 1700 nm. Tests conducted in Suprasil1 evidence a strong presence of Rayleigh scattering, hindering the production of low-loss waveguides at short wavelengths. On the other hand, optical waveguides fabricated in Eagle2000 exhibited lower insertion losses at short wavelengths, enabling the fabrication of low-loss broadband optical waveguides with a two order of magnitude higher scan velocity when compared with Suprasil1.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 5