发明名称 OPTICAL DEVICE WITH ATHERMAL SLOTS FOR TEMPERATURE DEPENDENCE CURVATURE REDUCTION
摘要 In one aspect of the invention, roughly stated, Applicants have discovered that a compensation material within slot elongated in a direction parallel to a segment of waveguide in an arrayed waveguide grating apparatus can compensate for both first and second order change in refractive index of the base waveguide material over temperature. Unlike the transverse slots of conventional linear athermalization techniques, the elongated slot generally parallel to the base material defines a composite waveguide section having a second order effective index of refraction temperature dependency which can be utilized to accurately minimize the temperature dependence of the overall optical path length to both the first and second order. The techniques described herein are also generalizeable to neutralization of the optical path length temperature dependence to any order.
申请公布号 US2011229080(A1) 申请公布日期 2011.09.22
申请号 US201113051900 申请日期 2011.03.18
申请人 GEMFIRE CORPORATION 发明人 BULTHUIS HINDRIK FREERK;MC DADE PAULA;BEELEN GUNTER B.
分类号 G02B6/34;G02B6/10 主分类号 G02B6/34
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