发明名称 |
PHOTONIC CRYSTAL WAVEGUIDE |
摘要 |
<p>A waveguide structure according to the invention comprises a core layer (10), having a refractive index ncore, and an array of rods (11) in the core layer having a refractive index nrods The refractive indices satisfy the inequality nrods>ncore In a planar waveguide structure buffer (12) and cladding (13) layers are included, having a refractive index nbuffer and ncladding respectively The refractive indices then satisfy the inequality nrods>ncore>ncladding and nbuffer This condition provides greater vertical confinement of the E-field of an optical signal passing through the waveguide. Furthermore, it allows waveguides to be formed of a glassy material having a similar refractive index and core dimensions to that of a fibre A high refractive index contrast within the photonic crystal region is used while totally eliminating the need for mode conversion to launch light in and out of the waveguide</p> |
申请公布号 |
EP1521987(A2) |
申请公布日期 |
2005.04.13 |
申请号 |
EP20030764016 |
申请日期 |
2003.07.15 |
申请人 |
MESOPHOTONICS LIMITED |
发明人 |
PARKER, GREG;CHARLTON, MARTIN;ZOOROB, MAJD |
分类号 |
G02B6/122;(IPC1-7):G02B6/12 |
主分类号 |
G02B6/122 |
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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