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�������պ����ѧѧ�� 2012, Vol. 38 Issue (6) :819-822    DOI:
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Transmitting spectra-temperature characteristic of single-mode fiber coupler
Li Yan, Zhang Min, Li Lijing, Yang Dewei*
School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The output spectra of fiber sources which transmitted through a single-mode fiber coupler were measured by changing temperature. When the input wave of Sagnac interferometer from the fiber coupler were transmitting wave and coupling wave respectively, the temperature characteristics of signal-errors outputted from Sagnac interferometer were simulated. The above experimental results demonstrate that the output power and mean-wavelength of the spectra traveling through the arm of directly-transmission and that of the coupling of coupler will both change when the temperature changes. And the temperature-stability of output power and mean-wavelength of the directly-transmission arm is higher than that of the coupling arm. The simulated results demonstrate that the interferometers errors caused by the light wave outputting from the directly-transmission arm of SM fiber coupler are one order smaller than that of the coupling arm.
Keywords�� fiber coupler   spectrum   stability   fiber-optic gyroscope     
Received 2011-04-02;
Fund:������Ȼ��ѧ����������Ŀ(60207002)
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����, ����, ������, ���ΰ.��ģ����������Ĵ�������¶�����[J]  �������պ����ѧѧ��, 2012,V38(6): 819-822
Li Yan, Zhang Min, Li Lijing, Yang Dewei.Transmitting spectra-temperature characteristic of single-mode fiber coupler[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(6): 819-822
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http://bhxb.buaa.edu.cn//CN/     ��     http://bhxb.buaa.edu.cn//CN/Y2012/V38/I6/819
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