专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US06307994B1 Multi-cladding optical fiber, long-period optical fiber grating written therein and writing method thereof 失效
标题翻译：多层包层光纤，其中写入的长周期光纤光栅及其写入方法
公开(公告)号：US06307994B1
公开(公告)日：2001-10-23
申请号：US09338572
申请日：1999-06-23
申请人： Un-chul Paek , Kyung-hwan Oh , Young-geun Han
发明人： Un-chul Paek , Kyung-hwan Oh , Young-geun Han
IPC分类号： G02B602
CPC分类号： G02B6/03627 , G02B6/02095 , G02B6/021 , G02B6/02147
摘要： A multi-cladding optical fiber, a long-period optical fiber grating written in the optical fiber, and a writing method thereof are provided. The multi-cladding optical fiber includes a core made of germanium-doped silica (GeO2—SiO2), for guiding light, an inner cladding made of fluorine-doped silica (F—SiO2), the inner cladding having a refractive index smaller than that of the core and surrounding the core, and an outer cladding made of silica, the outer cladding having a refractive index smaller than that of the core and larger than that of the inner cladding and surrounding the inner cladding. Therefore, an optimized optical fiber can be designed. That is to say, an optical fiber having desired characteristics can be fabricated by adjusting at least one of the parameters including the amount of F doped into the inner cladding, the thickness of the inner cladding, the amount of GeO2 doped into the core, the composition of SiO2 in the outer cladding and the drawing tension of the optical fiber. Also, the refractive index of the core is periodically changed by periodically annealing the multi-cladding optical fiber, so that a stress-released long-period optical fiber grating can be obtained.
摘要翻译：提供多层包层光纤，写在光纤中的长周期光纤光栅及其写入方法。多包层光纤包括由锗掺杂二氧化硅（GeO 2 -SiO 2）制成的芯，用于引导光，由氟掺杂二氧化硅（F-SiO 2）制成的内包层，内包层的折射率小于的芯部并且围绕芯部，以及由二氧化硅制成的外包层，外包层的折射率小于芯的折射率，并且大于内包层的折射率并且围绕内包层。因此，可以设计优化的光纤。也就是说，具有期望特性的光纤可以通过调整至少一个参数来制造，所述参数包括掺杂到内部包层中的F的量，内部包层的厚度，掺入到芯中的GeO 2的量，外包层中SiO2的组成和光纤的拉伸张力。此外，通过周期性地退火多包层光纤来周期性地改变芯的折射率，从而可以获得应力释放的长周期光纤光栅。

2. 发明授权

US06636684B1 Dispersive optical fiber using binary component silica 失效
标题翻译：使用二元组分二氧化硅的分散光纤
公开(公告)号：US06636684B1
公开(公告)日：2003-10-21
申请号：US09337761
申请日：1999-06-22
申请人： Un-chul Paek , Kyung-hwan Oh , Hong-seok Seo
发明人： Un-chul Paek , Kyung-hwan Oh , Hong-seok Seo
IPC分类号： G02B600
CPC分类号： G02B6/03611 , G02B6/03694 , G02B6/29368
摘要： A dispersive optical fiber having variable core-cladding refractive index differences depending on wavelength is provided. The dispersive optical fiber includes a core made of silica doped with a first dispersive material, and a cladding made of silica doped with a second dispersive material, wherein the refractive indices of the first and the second dispersive materials cross each other at a predetermined cross wavelength. The first and second dispersive materials include boron and fluorine. The dispersive optical fiber is attained by doping each dispersive material into the core and the cladding, respectively, thereby minimizing transmission loss, and is capable of being coupled to general optical fibers.
摘要翻译：提供了具有取决于波长的可变的芯 - 包层折射率差的分散光纤。分散光纤包括由掺杂有第一分散材料的二氧化硅制成的芯和由掺杂有第二分散材料的二氧化硅制成的包层，其中第一和第二分散材料的折射率以预定的交叉波长彼此交叉。第一和第二分散材料包括硼和氟。分散光纤通过将每个分散材料分别掺入到芯和包层中来实现，从而最小化传输损耗，并且能够耦合到通用光纤。

3. 发明授权

US06233386B1 Optical fiber for use in Bragg grating and fiber Bragg grating using the same 失效
标题翻译：用于布拉格光栅的光纤和使用其的光纤布拉格光栅
公开(公告)号：US06233386B1
公开(公告)日：2001-05-15
申请号：US09337417
申请日：1999-06-22
申请人： Un-chul Paek , Kyung-hwan Oh
发明人： Un-chul Paek , Kyung-hwan Oh
IPC分类号： G02B602
CPC分类号： G02B6/03627 , G02B6/0219
摘要： An optical fiber for use in a fiber Bragg grating and a fiber Bragg grating using the same are provided. The optical fiber includes a core made of a material obtained by adding germanium oxide (GeO2) to silica (SiO2), for guiding light, and a cladding made by adding a material having a negative thermal expansion coefficient to silica (SiO2), the cladding having a refractive index lower than that of the core. Therefore, the change in Bragg wavelength depending on temperature can be minimized by forming the optical fiber using a material having a negative thermal expansion coefficient.
摘要翻译：提供了一种用于光纤布拉格光栅的光纤和使用其的光纤布拉格光栅。该光纤包括由通过向二氧化硅（SiO 2）中添加氧化锗（GeO 2）以引导光而获得的材料的芯和通过将具有负热膨胀系数的材料添加到二氧化硅（SiO 2），包层折射率低于芯的折射率。因此，通过使用具有负热膨胀系数的材料形成光纤，可以最小化布拉格波长随温度的变化。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式