发明名称 |
Optical waveguide gratings having roughened cladding for reduced short wavelength cladding mode loss |
摘要 |
In accordance with the invention, an optical waveguide comprising a longitudinally extending core housing an optical grating and a cladding layer peripherally surrounding the core, is provided with an outer surface of the cladding layer having one or more perturbations. Each perturbation has a height with respect to the core that varies by at least 0.1 times a Bragg wavelength of the grating over the surface of the perturbation and covers an extent of the outer surface whose linear dimensions are less than 1 cm. The perturbations suppress cladding mode spectra and reduce short wavelength cladding mode loss.
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申请公布号 |
US6408118(B1) |
申请公布日期 |
2002.06.18 |
申请号 |
US20000648948 |
申请日期 |
2000.08.25 |
申请人 |
AGERE SYSTEMS GUARDIAN CORP. |
发明人 |
AHUJA ASHISH;EGGLETON BENJAMIN JOHN;ENGELBERTH JON W.;HALE ARTURO;KOWACH GLEN ROBERT;RAMANATHAN SHARAD;SIMON STEVEN HERBERT;WESTBROOK PAUL STEPHEN |
分类号 |
G02B6/02;G02B6/12;G02B6/124;G02B6/138;G02B6/14;G02B6/245;G02B6/34;G02B6/36;(IPC1-7):G02B6/34 |
主分类号 |
G02B6/02 |
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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