Abstract
We demonstrate the design and fabrication of multichannel fibre Bragg gratings (FBGs) with aperiodic channel spacings. These will be suitable for the suppression of specific spectral lines such as OH emission lines in the near infrared (NIR) which degrade ground based astronomical imaging. We discuss the design process used to meet a given specification and the fabrication challenges that can give rise to errors in the final manufactured device. We propose and demonstrate solutions to meet these challenges.
Original language | English |
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Pages (from-to) | 1315-1323 |
Number of pages | 9 |
Journal | Optics Express |
Volume | 26 |
Issue number | 2 |
Early online date | 12 Jan 2018 |
DOIs | |
Publication status | Published - 12 Jan 2018 |
Bibliographical note
© 2018 Optical Society of America under the terms of the OSA Open Access Publishing AgreementKeywords
- Fiber Bragg gratings
- photosensitivity
- Astronomy and astrophysics