公开(公告)号：US5694205A

公开(公告)日：1997-12-02

申请号：US545455

申请日：1995-10-19

申请人： Devlin M. Gualtieri ,  Janpu Hou ,  William R. Rapoport ,  Herman Van de Vaart

发明人： Devlin M. Gualtieri ,  Janpu Hou ,  William R. Rapoport ,  Herman Van de Vaart

IPC分类号： G01L1/24

CPC分类号： G01L1/241

摘要： A birefringent bias is provided to an optical sensor by the addition of one or more single birefringent elements where the total birefringence-length product remains within the accepted tolerances of current devices. The bias provided by two or more elements is such that where each element has a birefringence, a dB/dT and a coefficient of thermal expansion term, the elements are arranged in tandem so that the combined birefringence terms equal the required birefringence bias and the dB/dT and coefficient of thermal expansion terms effectively cancel.

摘要翻译： 通过添加一个或多个单双折射元件向光学传感器提供双折射偏置，其中总双折射长度乘积保持在当前器件的公认误差范围内。 由两个或更多个元件提供的偏压使得当每个元件具有双折射，dB / dT和热膨胀项的系数时，元件串联布置，使得组合双折射项等于所需的双折射偏差和dB / dT和热膨胀系数有效地消除。