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1. 发明授权

US06459834B1 Apparatus for manufacturing long period fiber gratings with low dependence on polarization and long period fiber gratings manufactured by the same 有权
标题翻译：用于制造具有低偏振度的长周期光纤光栅的装置以及由其制造的长周期光纤光栅
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。

2. 发明授权

US06707956B1 Apparatus for fabricating apodized fiber grating 失效
标题翻译：用于制造变迹光纤光栅的装置
公开(公告)号：US06707956B1
公开(公告)日：2004-03-16
申请号：US09608134
申请日：2000-06-30
申请人： Se-Yoon Kim , Sang-Gil Shin , Min-Sung Kim
发明人： Se-Yoon Kim , Sang-Gil Shin , Min-Sung Kim
IPC分类号： G02F1295
CPC分类号： G02B6/02138 , G02B6/02085
摘要： There is provided an apparatus for fabricating an apodized fiber grating. In the apodized fiber grating fabricating apparatus, a UV (Ultraviolet) laser emits a UV laser beam, a beam splitter splits the UV laser beam emitted from the UV laser into two beams, a plurality of mirrors form light paths to concurrently project the split beams onto an optical fiber from two directions by reflecting the split beams, a phase mask passes the reflected beams therethrough in such a way to form gratings in the optical fiber in a predetermined period, a first blocking device is disposed between the phase mask and one of the mirrors, progressively blocks one of the two beams from being projected toward the optical fiber from one direction, and provides apodization to the formed gratings, and a second blocking device, which is mobile and opposite to the first blocking device with respect to the optical fiber, progressively blocks the other beam from being projected toward the optical fiber from another direction and provides apodization to the formed gratings, so that an average refractive index variation is constant across the whole gratings.
摘要翻译：提供了一种用于制造变迹光纤光栅的装置。在变迹光纤光栅制造装置中，UV（紫外线）激光器发射UV激光束，分束器将从UV激光器发射的UV激光束分成两束，多个反射镜形成光路，以同时投影分束通过反射分束，从两个方向到达光纤，相位掩模以预定的时间间隔使得反射光束通过其中以形成光纤中的光栅，第一阻挡装置设置在相位掩模之间反射镜逐渐地阻止两个光束中的一个从一个方向向光纤投影，并且向形成的光栅提供变迹，以及第二阻挡装置，其相对于光学器件移动并与第一阻挡装置相对纤维逐渐阻止另一束从另一方向向光纤投影，并向形成的光栅提供变迹，使得ave 整个光栅的辐射折射率变化是恒定的。

3. 发明授权

US06314222B1 Long-period optical fiber grating filter device 失效
标题翻译：长周期光纤光栅滤波器
公开(公告)号：US06314222B1
公开(公告)日：2001-11-06
申请号：US09467688
申请日：1999-12-21
申请人： Joo-Nyung Jang , Sun-Wook Kim , Se-Yoon Kim , Min-Sung Kim
发明人： Joo-Nyung Jang , Sun-Wook Kim , Se-Yoon Kim , Min-Sung Kim
IPC分类号： G02B634
CPC分类号： G02B6/02095 , G02B6/0219 , H01S3/0675 , H01S3/1055
摘要： A long-period fiber grating filter device which includes a core having refractive index modulations formed therein at every predetermined distance, a cladding surrounding the core, a coating covering the cladding portion not adjacent to the long-period fiber gratings, a recoating covering the cladding portion adjacent to the long-period fiber gratings, a long-period fiber grating where a coupling wavelength exhibits a negative wavelength shift with respect to temperature change according to the amount of a dopant added to the core, and a recoating material where the refractive index decreases with temperature increase and the coupling wavelength exhibits a positive wavelength shift by the effect of the recoating material, wherein the negative wavelength shift in long-period fiber grating itself and the positive wavelength shift by the effect of the recoating material balance each other to eliminate temperature control in the long-period grating filter device.
摘要翻译：一种长周期光纤光栅滤光器装置，其包括在每个预定距离处形成有折射率调制的芯，围绕芯的包层，覆盖不与长周期光纤光栅相邻的包层部分的涂层，覆盖覆层的覆盖层与长周期光纤光栅相邻的部分，长周期光纤光栅，其中耦合波长相对于根据添加到芯的掺杂剂的量的温度变化而呈现负波长位移;以及重折射材料，其中折射率随着温度的升高而降低，耦合波长通过重涂材料的作用呈现出正的波长偏移，其中长周期光纤光栅本身的负波长偏移和由重涂材料的作用产生的正波长偏移相互平衡以消除长周期光栅滤波器中的温度控制。

4. 发明授权

US07324727B2 Planar lightwave circuit having optical filter 有权
标题翻译：具有光滤波器的平面光波电路
公开(公告)号：US07324727B2
公开(公告)日：2008-01-29
申请号：US11280059
申请日：2005-11-16
申请人： Kyoung-Youm Kim , Jeong-Hwan Song , Se-Yoon Kim
发明人： Kyoung-Youm Kim , Jeong-Hwan Song , Se-Yoon Kim
IPC分类号： G02B6/26 , G02B6/10
CPC分类号： G02B6/1228 , G02B6/12007 , G02B2006/12109
摘要： A planar lightwave circuit having an optical filter, which comprises: a first waveguide; a second waveguide separated from the first waveguide, in which the width of a first cross-section opposite to the first waveguide is wider than that of a second cross-section of the other side; and a trench located between the first and second waveguides, in which the optical filter is positioned.
摘要翻译：一种具有滤光器的平面光波电路，包括：第一波导; 与第一波导分离的第二波导，其中与第一波导相对的第一横截面的宽度比另一侧的第二横截面的宽度宽; 以及位于第一和第二波导之间的沟槽，其中光学滤波器被定位在该沟槽中。

5. 发明授权

US07215884B2 Optical demultiplexer having bragg diffration grating and optical communication module using the optical demultiplexer 有权
标题翻译：具有布喇格扩散光栅的光解复用器和使用该光解复用器的光通信模块
公开(公告)号：US07215884B2
公开(公告)日：2007-05-08
申请号：US10744338
申请日：2003-12-23
申请人： Jun-Mo Koo , Se-Yoon Kim , Kyoung-Youm Kim
发明人： Jun-Mo Koo , Se-Yoon Kim , Kyoung-Youm Kim
IPC分类号： H04J14/02 , H04B10/12 , G02B6/42 , G02B6/34
CPC分类号： H04B10/40
摘要： An optical demultiplexer having at least one Bragg diffraction grating for minimizing crosstalk on the sides of transmitting and receiving optical signals, as well as an optical communication module using the optical demultiplexer. The optical demultiplexer has first and second waveguides arranged adjacent each other in a predetermined section in order to perform mode coupling, so that the optical signals input through one end of the first waveguide are transmitted to a light receiving element through the second waveguide, and in which output light waves inputted through the other end of the first waveguide are output through the one end of the first waveguide. A first Bragg diffraction grating is formed on the second waveguide and haa wavelength selectivity, for minimizing crosstalk by transmitting a reception wavelength of the optical signals at about 100% and by reflecting a wavelength of the output light waves at about 100%.
摘要翻译：一种具有至少一个布拉格衍射光栅的光解复用器，用于最小化发送和接收光信号两侧的串扰，以及使用该光解复用器的光通信模块。光解复用器具有在预定部分中彼此相邻布置的第一和第二波导，以便执行模式耦合，使得通过第一波导的一端输入的光信号通过第二波导传输到光接收元件，并且在其输出通过第一波导的另一端输入的光波通过第一波导的一端输出。在第二波导上形成第一布拉格衍射光栅和波长选择性，以便通过将光信号的接收波长发送到大约100％并通过将输出光波的波长反射到大约100％来最小化串扰。

6. 发明授权

US07146077B2 Optical coupler type filter and wavelength stabilizing apparatus of light source using the same 失效
标题翻译：光耦合器型滤波器和使用其的光源的波长稳定装置
公开(公告)号：US07146077B2
公开(公告)日：2006-12-05
申请号：US10935370
申请日：2004-09-07
申请人： Se-Yoon Kim , Sun-Tae Jung , Jeong-Hwan Song , Kyung-Shik Lee , Jong-Hoon Lim
发明人： Se-Yoon Kim , Sun-Tae Jung , Jeong-Hwan Song , Kyung-Shik Lee , Jong-Hoon Lim
IPC分类号： G02B6/26 , H04J14/02
CPC分类号： G02B6/29334 , H01S5/0264 , H01S5/0683 , H01S5/0687
摘要： Disclosed are an optical coupler type filter, and a wavelength stabilizing apparatus of a light source using the same. The wavelength stabilizing apparatus includes an optical coupler type filter including a first waveguide provided with first and second terminals, a second waveguide provided with a third terminal, a coupling region where the first and second waveguides are adjacent to each other so as to couple lights, and a grating disposed in the coupling region, a light source for outputting light to the first terminal, a first optical detector for detecting extracted light outputted from the third terminal as a first electric signal, a signal processor for determining the wavelength of the light outputted from the light source based on the power of the first electric signal, and outputting a control signal in the case that the wavelength of the light deviates from a stabilizing wavelength, and a driver for controlling the output wavelength of the light source based on the control signal, wherein the length of a sub-region of the coupling region, formed between the grating and the first terminal is set to minimize the power of a recurrent light reflected by the grating and outputted to the first terminal.
摘要翻译：公开了一种光耦合器型滤波器和使用该滤波器的光源的波长稳定装置。波长稳定装置包括：光耦合器型滤光器，包括设置有第一和第二端子的第一波导管，设置有第三端子的第二波导管，第一波导管和第二波导管彼此相邻的耦合区域，以及布置在耦合区域中的光栅，用于向第一端子输出光的光源，用于检测从第三端子输出的提取光作为第一电信号的第一光学检测器，用于确定输出的光的波长的信号处理器基于第一电信号的功率从光源输出光，并且在光的波长偏离稳定波长的情况下输出控制信号;以及驱动器，用于基于控制来控制光源的输出波长信号，其中形成在所述光栅和所述第一端子之间的所述耦合区域的子区域的长度为设置为最小化由光栅反射的并且输出到第一端子的反复光的功率。

7. 发明申请

US20050226558A1 Optical coupler type filter and wavelength stabilizing apparatus of light source using the same 失效
标题翻译：光耦合器型滤波器和使用其的光源的波长稳定装置
公开(公告)号：US20050226558A1
公开(公告)日：2005-10-13
申请号：US10935370
申请日：2004-09-07
申请人： Se-Yoon Kim , Sun-Tae Jung , Jeong-Hwan Song , Kyung-Shik Lee , Jong-Hoon Lim
发明人： Se-Yoon Kim , Sun-Tae Jung , Jeong-Hwan Song , Kyung-Shik Lee , Jong-Hoon Lim
IPC分类号： G02B6/34 , H01S5/0683
CPC分类号： G02B6/29334 , H01S5/0264 , H01S5/0683 , H01S5/0687
摘要： Disclosed are an optical coupler type filter, and a wavelength stabilizing apparatus of a light source using the same. The wavelength stabilizing apparatus includes an optical coupler type filter including a first waveguide provided with first and second terminals, a second waveguide provided with a third terminal, a coupling region where the first and second waveguides are adjacent to each other so as to couple lights, and a grating disposed in the coupling region, a light source for outputting light to the first terminal, a first optical detector for detecting extracted light outputted from the third terminal as a first electric signal, a signal processor for determining the wavelength of the light outputted from the light source based on the power of the first electric signal, and outputting a control signal in the case that the wavelength of the light deviates from a stabilizing wavelength, and a driver for controlling the output wavelength of the light source based on the control signal, wherein the length of a sub-region of the coupling region, formed between the grating and the first terminal is set to minimize the power of a recurrent light reflected by the grating and outputted to the first terminal.
摘要翻译：公开了一种光耦合器型滤波器和使用该滤波器的光源的波长稳定装置。波长稳定装置包括：光耦合器型滤光器，包括设置有第一和第二端子的第一波导管，设置有第三端子的第二波导管，第一波导管和第二波导管彼此相邻的耦合区域，以及布置在耦合区域中的光栅，用于向第一端子输出光的光源，用于检测从第三端子输出的提取光作为第一电信号的第一光学检测器，用于确定输出的光的波长的信号处理器基于第一电信号的功率从光源输出光，并且在光的波长偏离稳定波长的情况下输出控制信号;以及驱动器，用于基于控制来控制光源的输出波长信号，其中形成在所述光栅和所述第一端子之间的所述耦合区域的子区域的长度为设置为最小化由光栅反射的并且输出到第一端子的反复光的功率。

8. 发明授权

US07099357B2 Wavelength-tunable laser apparatus 有权
标题翻译：波长可调激光设备
公开(公告)号：US07099357B2
公开(公告)日：2006-08-29
申请号：US10721711
申请日：2003-11-25
申请人： Se-Yoon Kim
发明人： Se-Yoon Kim
IPC分类号： H01S3/10
CPC分类号： G02B6/124 , G02B6/42 , H01S5/026 , H01S5/0261 , H01S5/141 , H01S5/146
摘要： A wavelength-tunable laser apparatus includes a semiconductor substrate, a Fabry-Perot (FP) laser, and a planar lightwave circuit. The FP laser is formed on the semiconductor substrate at one side thereof, and has a plurality of longitudinal modes. The planar lightwave circuit is formed on the semiconductor substrate at the other side thereof, and includes a waveguide and a clad surrounding the waveguide with a grating carved into a portion of the waveguide. Light outputted from the FP laser is coupled to the waveguide, the grating reflects a plurality of light beams of different wavelengths, and the FP laser is wavelength-locked by one of the light beams reflected from the grating.
摘要翻译：波长可调激光装置包括半导体衬底，法布里 - 珀罗（FP）激光器和平面光波电路。 FP激光器在其一侧形成在半导体衬底上，并且具有多个纵向模式。平面光波电路在其另一侧形成在半导体衬底上，并且包括波导和围绕波导的包层，其具有雕刻到波导的一部分中的光栅。从FP激光器输出的光耦合到波导，光栅反射多个不同波长的光束，并且FP激光器被从光栅反射的光束之一波长锁定。

9. 发明申请

US20060104571A1 Planar lightwave circuit having optical filter 有权
标题翻译：具有光滤波器的平面光波电路
公开(公告)号：US20060104571A1
公开(公告)日：2006-05-18
申请号：US11280059
申请日：2005-11-16
申请人： Kyoung-Youm Kim , Jeong-Hwan Song , Se-Yoon Kim
发明人： Kyoung-Youm Kim , Jeong-Hwan Song , Se-Yoon Kim
IPC分类号： G02B6/26 , G02B6/10
CPC分类号： G02B6/1228 , G02B6/12007 , G02B2006/12109
摘要： A planar lightwave circuit having an optical filter, which comprises: a first waveguide; a second waveguide separated from the first waveguide, in which the width of a first cross-section opposite to the first waveguide is wider than that of a second cross-section of the other side; and a trench located between the first and second waveguides, in which the optical filter is positioned.
摘要翻译：一种具有滤光器的平面光波电路，包括：第一波导; 与第一波导分离的第二波导，其中与第一波导相对的第一横截面的宽度比另一侧的第二横截面的宽度宽; 以及位于第一和第二波导之间的沟槽，其中光学滤波器被定位在该沟槽中。

10. 发明授权

US06501881B2 Device for fabricating polarization insensitive long period fiber grating 有权
标题翻译：用于制造偏振不敏感长周期光纤光栅的器件
公开(公告)号：US06501881B2
公开(公告)日：2002-12-31
申请号：US09917975
申请日：2001-07-30
申请人： Se-Yoon Kim
发明人： Se-Yoon Kim
IPC分类号： G02B634
CPC分类号： G02B6/02109 , G02B6/02095 , G02B6/02142
摘要： Disclosed is a device for fabricating a polarization insensitive long-period fiber grating which includes: an ultraviolet laser for irradiating a ultraviolet laser beam; an ultraviolet polarizer for converting a polarization status of the ultraviolet laser beam into a linear polarization status in parallel along the longitudinal direction of a fiber; a lens for adjusting a focus of the ultraviolet laser beam from the ultraviolet polarizer; an amplitude mask for selectively passing the ultraviolet laser beam from the lens; and, a mount for holding both ends of the fiber so that the outer circumferential surface of the fiber can be exposed to the ultraviolet laser beam from the amplitude mask.
摘要翻译：公开了一种用于制造偏振不敏感长周期光纤光栅的装置，其包括：用于照射紫外激光束的紫外激光; 紫外线偏振器，用于将紫外激光束的偏振状态沿着光纤的长度方向平行地转换为线偏振状态; 用于调节来自紫外线偏振器的紫外激光束的焦点的透镜; 用于选择性地使来自透镜的紫外激光束的幅度掩模; 以及用于保持纤维的两端的安装件，使得光纤的外周面能够从振幅掩模暴露于紫外线激光束。

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