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1. 发明申请

US20030210864A1 Gires-tournois etalons and dispersion compensation 失效
标题翻译： Gires-tournois标准具和色散补偿
公开(公告)号：US20030210864A1
公开(公告)日：2003-11-13
申请号：US10291898
申请日：2002-11-08
申请人： ASTON PHOTONIC TECHNOLOGIES LTD.
发明人： Catherine Anne Sugden , Xuewen Shu , Lee Ann Kennedy , Kevin Christopher Byron
IPC分类号： G02B006/34 , G02B006/26
CPC分类号： G02B6/29358 , G02B6/02085 , G02B6/12007 , G02B6/29394 , H04B10/2519
摘要： A first embodiment of the invention provides a Gires-Tournois etalon (DGTE) 20 comprising a cladding mode suppressed optical fibre 22, including an etalon section 24 in which a weakly reflective optical waveguide grating 26 and a strongly reflective optical waveguide grating 28 are provided. The two gratings 26, 28 are chirped fibre Bragg gratings (FBGs). The chirped FBGs 26, 28 are arranged to together define an etalon cavity. Another aspect of the invention provides a dispersion compensator 60 comprising two DGTEs 62, 64 according to the first embodiment of the invention The DGTEs 62, 64 have a linearly varying dispersion over a selected optical bandwidth. The first DGTE 62 has a positive dispersion slope and the second DGTE 64 has a negative dispersion slope. The magnitudes of the dispersion slopes of the two DGTEs 62, 64 are substantially equal, so that the dispersion compensator 60 has a constant dispersion across the selected bandwidth. The DGTEs 62, 64 are optically coupled to one another via a four-port optical circulator 66.
摘要翻译：本发明的第一实施例提供了一种包括模包道抑制光纤22的Gires-Tournois标准具（DGTE）20，其包括标准具部分24，其中设置有弱反射光波导光栅26和强反射光波导光栅28。两个光栅26,28是啁啾光纤布拉格光栅（FBG）。啁啾的FBG 26,28被布置成一起限定了标准具腔。本发明的另一方面提供了一种色散补偿器60，其包括根据本发明第一实施例的两个DGTE 62,64。DGTE 62,64在选定的光学带宽上具有线性变化的色散。第一DGTE 62具有正色散斜率，第二DGTE 64具有负色散斜率。两个DGTE 62,64的色散斜率的大小基本相等，使得色散补偿器60在选定的带宽上具有恒定的色散。 DGTE 62,64通过四端口光循环器66彼此光耦合。

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