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1. 发明公开

EP1014124A2 Method of and device for optical fibre grating fabrication 有权
标题翻译：光纤光栅制造方法和装置
公开(公告)号：EP1014124A2
公开(公告)日：2000-06-28
申请号：EP99125282.6
申请日：1999-12-18
申请人： OTC Optical Technologies Center
发明人： Boschis, Laura , Emelli, Enrico , Rossotto, Oriana , Tallone, Luigi
IPC分类号： G02B6/16
CPC分类号： G02B6/02138 , G02B6/02085 , G02B6/02142 , G02B6/02152
摘要： An optical fibre (F) is sequentially submitted to a first and a second exposure to the grating writing radiation. The first exposure (Fig. 1) is performed by positioning the fibre (F) in proximity of a phase mask (3), so as to expose the same fibre (F) to a radiation of which the intensity is spatially modulated by the interference fringes generated by the phase mask (3) itself. The second exposure (Fig. 2) is performed with the fibre spaced apart from the phase mask (3) in the propagation direction of the writing radiation (1) by a sufficient distance in order the radiation incident on the fibre (F) is substantially defined by the first diffraction orders generated by the phase mask (3) in a situation in which there is basically no reciprocal interference among said first orders.
摘要翻译：光纤（F）依次经受对光栅写入辐射的第一次和第二次曝光。通过将光纤（F）定位在相位掩模（3）附近来执行第一次曝光（图1），以便将相同光纤（F）暴露于其强度由干涉空间调制的辐射由相位掩模（3）自身产生的条纹。利用纤维在写入辐射（1）的传播方向上与相位掩膜（3）间隔开足够距离来执行第二次曝光（图2），以便入射到光纤（F）上的辐射基本上由在相位掩模（3）产生的第一衍射级在所述第一级之间基本上不存在相互干涉的情况下定义。

2. 发明公开

EP1014123A3 An optical fibre bragg grating device with passive compensation of temperature 审中-公开
标题翻译：光纤布喇格光栅与被动温度补偿
公开(公告)号：EP1014123A3
公开(公告)日：2000-10-11
申请号：EP99125281.8
申请日：1999-12-18
申请人： OTC Optical Technologies Center
发明人： Boschis, Laura , Rossotto, Oriana , Luigi Tallone
IPC分类号： G02B6/16
CPC分类号： G02B6/0218
摘要： An optical fibre Bragg grating device with passive compensation of temperature comprises a grating (2) manufactured on a conventional optical fibre for telecommunications (1) and having a period such that the mode guided by the core (1A) of the fibre (1) is coupled to the higher order modes of the cladding (1B), and a support (3) on which the fibre length (1) is fixed. The compensation is obtained by making the support (3) in a material whose coefficient of thermal expansion is such as to compensate for the shift of the spectral peak of the grating due to temperature variations.

3. 发明公开

EP1014123A2 An optical fibre bragg grating device with passive compensation of temperature 审中-公开
标题翻译： Optische Faser mit Bragg Gitter mit passiver Temperaturkompensation
公开(公告)号：EP1014123A2
公开(公告)日：2000-06-28
申请号：EP99125281.8
申请日：1999-12-18
申请人： OTC Optical Technologies Center
发明人： Boschis, Laura , Rossotto, Oriana , Luigi Tallone
IPC分类号： G02B6/16
CPC分类号： G02B6/0218
摘要： An optical fibre Bragg grating device with passive compensation of temperature comprises a grating (2) manufactured on a conventional optical fibre for telecommunications (1) and having a period such that the mode guided by the core (1A) of the fibre (1) is coupled to the higher order modes of the cladding (1B), and a support (3) on which the fibre length (1) is fixed. The compensation is obtained by making the support (3) in a material whose coefficient of thermal expansion is such as to compensate for the shift of the spectral peak of the grating due to temperature variations.
摘要翻译：具有无源温度补偿温度的光纤布拉格光栅器件包括在用于通信的常规光纤（1）上制造的光栅（2），并且具有使由光纤（1）的芯（1A）引导的模式为耦合到包层（1B）的较高阶模式，以及固定光纤长度（1）的支撑件（3）。通过将支撑体（3）制成材料，其热膨胀系数由于温度变化而补偿光栅的频谱峰值的偏移，可获得补偿。

4. 发明公开

EP1014124A3 Method of and device for optical fibre grating fabrication 有权
标题翻译：的方法和装置在光纤生产光栅的
公开(公告)号：EP1014124A3
公开(公告)日：2000-10-18
申请号：EP99125282.6
申请日：1999-12-18
申请人： OTC Optical Technologies Center
发明人： Boschis, Laura , Emelli, Enrico , Rossotto, Oriana , Tallone, Luigi
IPC分类号： G02B6/16
CPC分类号： G02B6/02138 , G02B6/02085 , G02B6/02142 , G02B6/02152
摘要： An optical fibre (F) is sequentially submitted to a first and a second exposure to the grating writing radiation. The first exposure (Fig. 1) is performed by positioning the fibre (F) in proximity of a phase mask (3), so as to expose the same fibre (F) to a radiation of which the intensity is spatially modulated by the interference fringes generated by the phase mask (3) itself. The second exposure (Fig. 2) is performed with the fibre spaced apart from the phase mask (3) in the propagation direction of the writing radiation (1) by a sufficient distance in order the radiation incident on the fibre (F) is substantially defined by the first diffraction orders generated by the phase mask (3) in a situation in which there is basically no reciprocal interference among said first orders. Thereby an apodised grating with constant average refractive index can be produced.

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