公开(公告)号：US06920268B2

公开(公告)日：2005-07-19

申请号：US10439028

申请日：2003-05-16

申请人： Oh-Dal Kwon ,  Shin-Young Yoon ,  Sang-Gil Shin ,  Bang-Weon Lee ,  Jeong-Hwan Song ,  Sang-Wook Yoo ,  Young-Gyu Son

发明人： Oh-Dal Kwon ,  Shin-Young Yoon ,  Sang-Gil Shin ,  Bang-Weon Lee ,  Jeong-Hwan Song ,  Sang-Wook Yoo ,  Young-Gyu Son

IPC分类号： G02B6/36 ,  G02B6/30 ,  G02B6/34 ,  G02B6/40 ,  G02B6/26

CPC分类号： G02B6/12016 ,  G02B6/1203 ,  G02B6/30

摘要： Disclosed is a variable alignment-type optical fiber block in which alignment of waveguides can be changed according to temperature. The optical fiber block includes: a substrate having a receiving section formed at one end of the substrate, the receiving section having a predetermined volume; a ferrule seated in the receiving section, the ferrule having a hole in which an optical fiber is inserted; a first expandable block disposed between one side surface of the ferrule and an inner wall surface of the receiving section, which are opposed to each other, the first expandable block having a first thermal expansive coefficient; and, a second expandable block disposed between the other side surface of the ferrule and another inner wall surface of the receiving section, which are opposed to each other, the second expandable block having a second thermal expansive coefficient.

摘要翻译： 公开了可以根据温度改变波导对准的可变对准型光纤块。 所述光纤块包括：具有形成在所述基板的一端的接收部的基板，所述接收部具有预定的体积; 安装在所述接收部中的套圈，所述套圈具有插入光纤的孔; 第一可膨胀块，其设置在所述套圈的一个侧表面和所述接收部分的彼此相对的内壁表面之间，所述第一可膨胀块具有第一热膨胀系数; 以及第二可膨胀块，其设置在所述套圈的另一侧表面和所述接收部分的另一内壁表面之间，所述第二可膨胀块彼此相对，所述第二可膨胀块具有第二热膨胀系数。

公开(公告)号：US06459834B1

公开(公告)日：2002-10-01

申请号：US09621008

申请日：2000-07-20

申请人： Se-Yoon Kim ,  Min-Sung Kim ,  Shin-Young Yoon

发明人： Se-Yoon Kim ,  Min-Sung Kim ,  Shin-Young Yoon

IPC分类号： G02B634

CPC分类号： G02B6/02152 ,  G02B6/02142

摘要： An apparatus for manufacturing long period fiber gratings with low polarization dependence, and a long period fiber grating manufactured by the apparatus, are provided. This apparatus includes an optical fiber, one end of which has been rotated at least once with respect to the other end, an ultraviolet laser source, and an amplitude mask disposed over the optical fiber, for transmitting light emitted from the ultraviolet laser source at periodic distance intervals. In the manufacture of long period fiber gratings, the refractive index of an optical fiber core is perturbed by irradiating UV light to a twisted optical fiber or by irradiating UV light to an optical fiber which is rotating, so that isotropic perturbations in refractive index can be made when it is seen from the total length of the optical fiber.

摘要翻译： 提供一种用于制造具有低偏振度的长周期光纤光栅的装置和由该装置制造的长周期光纤光栅。 该装置包括其一端相对于另一端旋转至少一次的光纤，设置在光纤上方的紫外激光源和振幅掩模，用于以周期性方式透射从紫外激光源发射的光 距离间隔。 在长周期光纤光栅的制造中，光纤芯的折射率通过将UV光照射到扭曲的光纤或通过向正在旋转的光纤照射UV光而受到扰动，使得折射率的各向同性扰动可以是 当从光纤的总长度看时，它是制造的。