✦ LIBER ✦
In-situ method for removing refractive index chirp in fiber Bragg grating photo-written by Lloyd mirror
✍ Scribed by Michel Gadonna; Philippe Grosso
- Book ID
- 104375481
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 310 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1068-5200
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✦ Synopsis
A novel method to reduce the index chirp of fiber Bragg gratings and improve the spectral response is proposed and demonstrated. The experimental layout includes a doubled Argon UV laser (244 nm) and an interferometric Lloyd mirror assembly mounted on a translation stage. The index chirp removing is achieved by a two steps UV radiation using the same gaussian laser beam and without removing the fiber from the set-up. First, we describe the two steps of the process to remove the unwanted refractive index chirp and second, we show the agreement between theorical and experimental results.