From Event: SPIE Optical Engineering + Applications, 2016
The spectral noise characteristic and relative intensity noise of an all fibre Sagnac interferometer system consisting of a 980nm pump source at 130mW maximum output power, a 980/1550nm wavelength division multiplexer, a 10m-piece of Erbium-doped fibre, a fibre Bragg grating (FBG) centered at 1.548um, an optical circulator at 1550nm and a 50/50 fibre coupler, were measured with an optical spectrum analyzer (OSA) for fine tuning for a range of temperature between 5 and 180 degrees Celsius in step of 1 degree Celsius. At the probing end, a high-bi piece of fibre and a Peltier were employed for temperature variation of the system. Spectral and temperature response of the noise reduction due to temperature variation was performed remotely using and Arduino micro-controller and a DS18B20 digital sensor, into a local area network. Full optical and thermal characterization of the system will be included in the presentation.
A. Sierra-Calderon, J. C. Rodriguez-Novelo, E. Gamez-Aviles, M. May-Alarcon, H. Toral-Cruz, and J. A. Alvarez-Chavez, "Optimization and thermal ASE noise characterization of an all-fibre Sagnac interferometer via LAN for sensing applications," Proc. SPIE 9974, Infrared Sensors, Devices, and Applications VI, 99740R (Presented at SPIE Optical Engineering + Applications: September 01, 2016; Published: 19 September 2016); https://doi.org/10.1117/12.2237898.
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