Abstract
This paper presents the conceptual design for a new method for the suppression of OH emission lines at near-infrared (NIR) wavelengths by actively adjusting the aperiodic fiber optic Bragg gratings tension. First, we prepared an experimental study in which we simulated an OH emission line using a semiconductor laser at 1548.43 nm and a commercial FBG, with a Bragg wavelength of 1547.76 nm. We demonstrated that the grating Bragg wavelength can be adjusted by controlling the linear deformation of the fiber with a force in the range of 0 to 53.88 gf (0.528 N) that provides a sensitivity of 0.014 nm g−1. Second, we proposed the design of a system connected to the telescope instrumentation, with the different stages that would allow monitoring the suppression of emission lines.
Original language | English |
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Pages (from-to) | 351-361 |
Number of pages | 11 |
Journal | Revista Mexicana de Astronomia y Astrofisica |
Volume | 55 |
Issue number | 2 |
DOIs | |
State | Published - 2019 |
Keywords
- Atmospheric effects
- Infrared: general
- Instrumentation: photometers
- Methods: numerical