发明名称 |
COMPENSATION APPARATUS AND METHOD UTILISING SAMPLED BRAGG GRATINGS |
摘要 |
Dispersion compensation devices are described which comprise waveguides including sampled Bragg gratings which exhibit comb-like reflectance characteristics. The profile of effective refractive index along the length of the grating is controlled to adjust the position of the teeth and/or to control the dispersion exhibited by the device (i.e. to control the chirp of the grating). The devices can thus be used to provide dispersion compensation to any one of a number of wavelength channels in a WDM system. In preferred arrangements, the effective refractive index distribution is set by a applying a temperature distribution along the length of the grating, or by setting an applied electric field,
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申请公布号 |
CA2389445(A1) |
申请公布日期 |
2002.12.07 |
申请号 |
CA20022389445 |
申请日期 |
2002.06.06 |
申请人 |
NORTEL NETWORKS LIMITED |
发明人 |
CLAPP, TERRY V.;ROBINSON, ALAN |
分类号 |
G02B6/12;G02B6/34;(IPC1-7):H04B10/18;G02B5/18 |
主分类号 |
G02B6/12 |
代理机构 |
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