期刊
OPTICS EXPRESS
卷 17, 期 17, 页码 15023-15031出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.17.015023
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Temperature dependent structural distortion at the contacted mirrors of low-expansion glass cavities can introduce changes to the cavity length independent of the length of the spacer. There are resulting temperature sensitivities of the path (m/K) at each end of a cavity that are proportional to the difference of the coefficient of thermal expansion (alpha) at the contact. The temperature sensitivity of the resonant frequency can be a minimum at a temperature TC if the product of length times alpha(T-C) of the spacer approximately offsets the combined sensitivities of the ends, even if alpha(T-C) of the spacer is significantly nonzero. (C) 2009 Optical Society of America
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