Highly sensitive fiber ring laser sensor for curvature using a modal interferometer
A curvature sensing Ytterbium-doped fiber ring,using a Thin Core Fiber Modal Interferometer (TCFMI) was experimentally demonstrated in this work. The TCFMI was implemented by fusion splicing a segment of a thin-core fiber, with a small core diameter, between two single-mode fiber sections. The propo...
- Autores:
-
Martin Vela, Javier Antonio
Sierra Hernández, Juan Manuel
Jauregui Vázquez, Daniel
Estudillo Ayala, Julián M.
Hernández García, Juan C.
Reyes Ayona, José Roberto
Garcia Mina, Diego Felipe
Rojas Laguna, Roberto
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2020
- Institución:
- Universidad Autónoma de Occidente
- Repositorio:
- RED: Repositorio Educativo Digital UAO
- Idioma:
- eng
- OAI Identifier:
- oai:red.uao.edu.co:10614/13547
- Acceso en línea:
- https://hdl.handle.net/10614/13547
- Palabra clave:
- Optical sensors
Ytterbium
Ring lasers
- Rights
- openAccess
- License
- https://creativecommons.org/licenses/by-nc-nd/4.0/
| Summary: | A curvature sensing Ytterbium-doped fiber ring,using a Thin Core Fiber Modal Interferometer (TCFMI) was experimentally demonstrated in this work. The TCFMI was implemented by fusion splicing a segment of a thin-core fiber, with a small core diameter, between two single-mode fiber sections. The proposed TCFMI functioned as a wavelengthselective filter in the fiber ring laser cavity. It was optimized to achieve a Side Mode Suppression Ratio (SMSR) of 35 dB; the laser emission produced a sensor resolution of 0.37 nm. The experimental results also showed a high curvature sensitivity close to −38.26 nm/m−1 from 0 m−1 to 0.399 m−1 curvature range. Here, the laser sensor exhibited a bandwidth of 16 nm in the 1072 nm to 1056 nm wavelength range. The fiber ring laser is a low-cost alternative for curvature sensing applications |
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