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Temperature Dependence of Faraday Rotation of Glass Optical Fibers Doped with Quantum Dots of CdSe and CdMnTe
Author(s) -
Ju Seongmin,
Lee Yuseung,
Ryu YongTak,
Kang Seong Gu,
Kim Jihoon,
Watekar Pramod R.,
Kim Bok Hyeon,
Lee Youjin,
An Yong Ho,
Kim Cheol Jin,
Han WonTaek
Publication year - 2019
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201800549
Subject(s) - verdet constant , faraday effect , materials science , doping , quantum dot , magnetic field , chemical vapor deposition , fiber , optical fiber , faraday rotator , condensed matter physics , optoelectronics , optics , composite material , physics , quantum mechanics
Specialty optical fibers incorporated with CdSe and CdMnTe quantum dots are fabricated using the modified chemical vapor deposition and high temperature fiber drawing process. Temperature dependence of Faraday rotation angle (FRA) is investigated under magnetic field of 0.126 Tesla (T) upon temperature change from 25 to 120 °C. The FRAs of the CdSe and CdMnTe doped fibers are found to increase linearly with magnetic field and no appreciable change in the FRA of the CdSe doped fiber with the increase of temperature is found regardless of the magnetic field as compared to the CdMnTe doped fiber. Average temperature dependence of the FRA are 16.40 × 10 −4 and −104.90 × 10 −4 degree °C −1 at 0.126 T for the CdSe and CdMnTe doped fibers and the resultant Verdet constants are estimated to be 3.75 ± 0.04 and 3.50 ± 0.12 rad T −1 m −1 , respectively.