发明名称 |
PRISM-COUPLING SYSTEMS AND METHODS FOR CHARACTERIZING LARGE DEPTH-OF-LAYER WAVEGUIDES |
摘要 |
Prism-coupling systems and methods for characterizing large depth-of-layer waveguides are disclosed. The systems and methods utilize a coupling prism having a coupling angle α having a maximum coupling angle αmax at which total internal reflection occurs. The prism angle α is in the range 0.81αmax≦̸α≦̸0.99αmax. This configuration causes the more spaced-apart lower-order mode lines to move closer together and the more tightly spaced higher-order mode lines to separate. The adjusted mode-line spacing allows for proper sampling at the detector of the otherwise tightly spaced mode lines. The mode-line spacings of the detected mode spectra are then corrected via post-processing. The corrected mode spectra are then processed to obtain at least one characteristic of the waveguide. |
申请公布号 |
EP3146311(A1) |
申请公布日期 |
2017.03.29 |
申请号 |
EP20150733564 |
申请日期 |
2015.05.20 |
申请人 |
Corning Incorporated |
发明人 |
LI, Shenping;ROUSSEV, Rostislav Vatchev |
分类号 |
G01N21/41;G01J4/04;G01N21/84 |
主分类号 |
G01N21/41 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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