Influence of temperature on output polarization degree of fiber Lyot depolarizers

DIAO Li; WANG Wenlong; KONG Yong; HAN Hua

doi:10.7510/jgjs.issn.1001-3806.2015.02.016

LASER TECHNOLOGY > 2015 > 39(2): 220-223. > DOI: 10.7510/jgjs.issn.1001-3806.2015.02.016

DIAO Li, WANG Wenlong, KONG Yong, HAN Hua. Influence of temperature on output polarization degree of fiber Lyot depolarizers[J]. LASER TECHNOLOGY, 2015, 39(2): 220-223. DOI: 10.7510/jgjs.issn.1001-3806.2015.02.016

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Influence of temperature on output polarization degree of fiber Lyot depolarizers

College of Electrical and Electronic Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

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Received Date: February 19, 2014
Revised Date: February 26, 2014
Published Date: March 24, 2015

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Abstract

In order to study the influence of temperature on the depolarization performance of optical fiber Lyot depolarizers accurately, based on the structural parameters of fiber depolarizers provided in previous references, an optical fiber Lyot depolarizer was made with a polarization maintaining fiber welding machine and its degree of polarization (DOP)P≤0.5% under the total temperature conditions(-40℃~80℃). The test system of the output DOP of the depolarizer under constant and variable temperature conditions was built. The causes of the change of DOP were analyzed. The measurement results show that the output DOP of the depolarizer remains unchanged basically when the temperature is constant at -40℃ and 80℃.The output DOP will change when the temperature changes at a certain gradient. The study has a certain reference value for the research in optical fiber sensing application.
- fiber optics,
- fiber Lyot depolarizer,
- degree of polarization,
- temperature,
- temperature gradient

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