Phenomenological model of UV-induced Bragg grating growth in germanosilicate fibers

Joerg Huebner; Mikael Svalgaard; Lars Gruener-Nielsen; Martin Kristensen

doi:10.1117/12.264178

23 January 1997 Phenomenological model of UV-induced Bragg grating growth in germanosilicate fibers

Joerg Huebner, Mikael Svalgaard, Lars Gruener-Nielsen, Martin Kristensen

Proceedings Volume 2998, Photosensitive Optical Materials and Devices; (1997) https://doi.org/10.1117/12.264178
Event: Photonics West '97, 1997, San Jose, CA, United States

Abstract

Germanium doped glasses show a permanent increase of the refractive index after illumination with UV light. With a UV interference pattern produced by a phasemask, permanent Bragg gratings can be induced in optical fibers and planar waveguides. The growth of these Bragg gratings shows oscillations meaning that the grating reflectivity raises, reaches a maximum, then vanishes slowly and raises again to another maximum. We have recorded the first oscillation in more than ten different non-sensitized germanosilicate fibers. In this paper we present a model of the growth behavior, relating it to the visibility of the interference pattern generated by the phasemask, showing that the coherence of the laser light used to induce the grating has a strong influence on the growth behavior of the Bragg grating. The model is in excellent agreement with the measured grating growth behavior.

Citation Download Citation

Joerg Huebner, Mikael Svalgaard, Lars Gruener-Nielsen, and Martin Kristensen "Phenomenological model of UV-induced Bragg grating growth in germanosilicate fibers", Proc. SPIE 2998, Photosensitive Optical Materials and Devices, (23 January 1997); https://doi.org/10.1117/12.264178

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available