TY - GEN
T1 - Anti-resonant hollow core fiber for precision timing applications
AU - Van Newkirk, Amy
AU - Antonio Lopez, J. E.
AU - Amezcua Correa, Rodrigo
AU - Schülzgen, Axel
AU - Mazurowski, John
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Many applications rely on the ultra-precise timing of optical signals through fiber, such as fiber interferometers, large telescope arrays, in phase arrayed antennae, optical metrology, and precision navigation and tracking. Environmental changes, specifically those caused by temperature fluctuations, lead to variations in the propagation delay of optical signals and thereby decrease the accuracy of the system's timing. The cause of these variations in delay is the change in the glass properties of the optical fiber with temperature. Both the refractive index of the glass and the length of the fiber are dependent on the ambient temperature. Traditional optical fiber suffers from a delay sensitivity of 39 ps/km/K. We are reducing the temperature sensitivity of the fiber delay through the application of a novel design of optical fiber, Anti-Resonant Hollow Core Fiber. The major improvement in the thermal sensitivity of this fiber comes from the fact that the light is guided in an air core, with very little overlap into the glass structure. This drastically reduces the impact that the thermally sensitive glass properties have on the propagation time of the optical signal. Additionally, hollow core fiber is inherently radiation insensitive, due to the light guidance in air, making it suitable for space applications.
AB - Many applications rely on the ultra-precise timing of optical signals through fiber, such as fiber interferometers, large telescope arrays, in phase arrayed antennae, optical metrology, and precision navigation and tracking. Environmental changes, specifically those caused by temperature fluctuations, lead to variations in the propagation delay of optical signals and thereby decrease the accuracy of the system's timing. The cause of these variations in delay is the change in the glass properties of the optical fiber with temperature. Both the refractive index of the glass and the length of the fiber are dependent on the ambient temperature. Traditional optical fiber suffers from a delay sensitivity of 39 ps/km/K. We are reducing the temperature sensitivity of the fiber delay through the application of a novel design of optical fiber, Anti-Resonant Hollow Core Fiber. The major improvement in the thermal sensitivity of this fiber comes from the fact that the light is guided in an air core, with very little overlap into the glass structure. This drastically reduces the impact that the thermally sensitive glass properties have on the propagation time of the optical signal. Additionally, hollow core fiber is inherently radiation insensitive, due to the light guidance in air, making it suitable for space applications.
UR - http://www.scopus.com/inward/record.url?scp=85034066162&partnerID=8YFLogxK
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U2 - 10.1117/12.2273873
DO - 10.1117/12.2273873
M3 - Conference contribution
AN - SCOPUS:85034066162
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Photonic Fiber and Crystal Devices
A2 - Yin, Shizhuo
A2 - Guo, Ruyan
PB - SPIE
T2 - Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI 2017
Y2 - 6 August 2017 through 7 August 2017
ER -