| Autor: |
Martin Heusinger, Christian Matzdorf, Timothy O. Imogore, Stefan Nolte, Thorsten A. Goebel, Ria G. Krämer, Daniel Richter, Maximilian Heck, Uwe D. Zeitner |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV. |
| Popis: |
Atmospheric emission limits observation with ground-based telescopes in the NIR. Those emission lines are very narrow in bandwidth and thus enable for filtering them with fiber Bragg gratings to utilize the light passing in-between. We present a scheme for the compact inscription of multiple notch filters with a semi-aperiodic fiber Bragg grating. Herein, we utilize the interference of neighboring grating sections of a phase mask which then produces the desired resonances inside a fiber. Our current design addresses up to ten wavelengths which are matched with an accuracy better than 175pm. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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