Photoinduced modifications in fiber gratings inscribed directly by infrared femtosecond irradiation

Amós Martínez, Mykhaylo Dubov, Igor Khrushchev, Ian Bennion

Research output: Contribution to journalArticlepeer-review

Abstract

The structure of fiber Bragg gratings inscribed pointby-point by an infrared femtosecond laser is studied by quantitative phase microscopy. Results show that these gratings present a central region with a depressed refractive index surrounded by an outer corona with increased refractive index. The refractive index profile suggests the presence of microvoids embedded in a region of the core. © 2006 IEEE.

Original languageEnglish
Pages (from-to)2266-2268
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number21
DOIs
Publication statusPublished - 1 Nov 2006

Keywords

  • femtosecond microfabrication
  • fiber Bragg gratings (FBGs)

Fingerprint Dive into the research topics of 'Photoinduced modifications in fiber gratings inscribed directly by infrared femtosecond irradiation'. Together they form a unique fingerprint.

Cite this