Browsing by Author "Yertutanol, Aylin"

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    Fiber-optic gyroscope for the suppression of a Faraday-effect-induced bias error
    (Optica, 2021-09-01) Yertutanol, Aylin; Akçaalan, Önder; Öğüt, Serdar; Özbay, Ekmel; Ceylan, Abdullah
    Inertial rotation sensors, interferometric fiber-optic gyro scopes (IFOGs), are widely used in military and industrial applications due to their high sensitivity and stability. In this Letter, a new, to the best of our knowledge, fiber coil design is proposed to reduce magnetic field sensitivity without adding any optical components or electronic algo rithms to the IFOG system. It is shown that this design can be applied without disturbing the simplest IFOG struc ture. Considering the fact that the magnetic field has an invertible effect on polarization, the compensation of the Faraday-effect-induced bias error has been demonstrated theoretically and experimentally by allowing two different polarizations to travel inside the fiber coil. According to the experimental results, the bias error was reduced approxi mately 20 times from ± 9.6◦ /h/mT to ± 0.5◦ /h/mT.
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    Optimization of ASE light source design for enhancement of wavelength stability
    (IEEE, 2023-11-28) Akbaş, Erkut Emin; Yertutanol, Aylin; Andaç, Tuğba; Özbay, Ekmel; Azizian-Kalandaragh, Yashar
    This study proposes a novel design approach to optimize Amplified Spontaneous Emission (ASE) light sources and compares its efficiency and performance with the conventional design. According to the experimental results, the wavelength stability of the proposed design is approximately 2.5 times more stable with respect to temperature than the conventional ASE light source design.