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1. 发明授权

US06845202B2 Optical fiber maximizing residual mechanical stress 失效
标题翻译：光纤使残余机械应力最大化
公开(公告)号：US06845202B2
公开(公告)日：2005-01-18
申请号：US10354113
申请日：2003-01-30
申请人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Yong-Woo Park , Hyun-Soo Park , Kyung-Ho Kwack
发明人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Yong-Woo Park , Hyun-Soo Park , Kyung-Ho Kwack
IPC分类号： G02B5/18 , C03B37/10 , C03C13/04 , G02B6/00 , G02B6/02 , G02B6/036 , G02B6/10
CPC分类号： G02B6/03694 , G02B6/02095 , G02B6/021 , G02B6/02114 , G02B6/02147 , G02B6/03627
摘要： An optical fiber for maximizing residual mechanical stress and an optical fiber grating fabricating method using the optical fiber are provided. The optical fiber includes a core formed of silica, for propagating light, and a cladding formed of boron-doped silica, surrounding the core. Alternatively, the optical fiber includes a core formed of phosphorous-doped silica and a cladding formed of silica, surrounding the core.
摘要翻译：提供了用于使残余机械应力最大化的光纤和使用该光纤的光纤光栅制造方法。光纤包括由二氧化硅形成的芯，用于传播光，以及由硼掺杂的二氧化硅形成的包围该芯的包层。或者，光纤包括由磷掺杂二氧化硅形成的芯和由二氧化硅形成的包围芯的芯。

2. 发明授权

US06385370B1 Device and method for forming anti-symmetric long period optical fiber gratings by microbending 有权
标题翻译：通过微弯形成反对称长周期光纤光栅的装置和方法
公开(公告)号：US06385370B1
公开(公告)日：2002-05-07
申请号：US09524278
申请日：2000-03-13
申请人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Jong-Ho Kim , Hyun-Soo Park , Kyung-Ho Kwack
发明人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Jong-Ho Kim , Hyun-Soo Park , Kyung-Ho Kwack
IPC分类号： G02B634
CPC分类号： G02B6/02071 , G02B6/02095 , G02B6/02147
摘要： There is provided a device and method for forming optical fiber anti-symmetric long period gratings by microbending. In the optical fiber grating forming device, a laser system emits a CO2 laser beam, a lens focuses the CO2 laser beam on an optical fiber in a predetermined width, an optical fiber support fixes both ends of the optical fiber and imparts tensile strain to the optical fiber, and a controller controls the intensity of the CO2 laser beam, the focusing distance of the lens, and the tensile force applied by the optical fiber support.
摘要翻译：提供了通过微弯曲形成光纤反对称长周期光栅的装置和方法。在光纤光栅形成装置中，激光系统发射CO2激光束，透镜将CO 2激光束聚焦在预定宽度的光纤上，光纤支撑件固定光纤的两端，并向光纤，并且控制器控制CO 2激光束的强度，透镜的聚焦距离以及由光纤支撑件施加的张力。

3. 发明授权

US06516112B1 Optical wavelength filter and demultiplexer 失效
标题翻译：光波长滤波器和解复用器
公开(公告)号：US06516112B1
公开(公告)日：2003-02-04
申请号：US08980308
申请日：1997-11-28
申请人： Joo-nyung Jang , Kyung-ho Kwack
发明人： Joo-nyung Jang , Kyung-ho Kwack
IPC分类号： G02B628
CPC分类号： G02B6/29317 , G02B6/2938 , H04J14/02 , H04J14/0204 , H04J14/0206 , H04J14/0209 , H04J14/0213
摘要： A low-loss, high-efficiency optical demultiplexer has a plurality of first optical devices and a plurality of second optical devices serially connected among the first optical devices. Each first optical device has first, second and third ports, receives an input optical signal via the first port, directs the input optical signal to the second port, and directs an optical signal returning via the second port only to the third port. Each second optical device has fourth and fifth ports connected between the first port of a corresponding first optical device and the second port of another corresponding first optical device, reflects only an optical signal having a corresponding wavelength component in the optical signal received via the fourth port, and passes an optical signal having the other wavelength components to the fifth port. In the second optical devices, different wavelength components of an optical signal received via the fourth port are reflected. In addition, optical signals having respective wavelength components reflected from the second optical devices are received in the first optical device via the second port thereof, and output from the first optical device via the third port thereof. In the present invention, power loss of a divided optical signal is far less than in a conventional 1×n coupler method.
摘要翻译：低损耗高效光解复用器具有多个第一光学器件和在第一光学器件之间串联连接的多个第二光学器件。每个第一光学装置具有第一，第二和第三端口，经由第一端口接收输入光信号，将输入光信号引导到第二端口，并将经由第二端口返回的光信号引导到第三端口。每个第二光学装置具有连接在相应的第一光学装置的第一端口和另一相应的第一光学装置的第二端口之间的第四和第五端口仅反射经由第四端口接收的光信号中具有相应波长分量的光信号并将具有其他波长分量的光信号传递到第五端口。在第二光学装置中，经由第四端口接收的光信号的不同波长分量被反射。此外，具有从第二光学装置反射的各波长分量的光信号经由其第二端口被接收在第一光学装置中，并且经由其第三端口从第一光学装置输出。在本发明中，分割的光信号的功率损耗远小于传统的1xn耦合器方法中的功率损耗。

4. 发明授权

US06229941B1 Apparatus and method of fabricating long-period fiber grating 失效
标题翻译：制造长周期光纤光栅的装置和方法
公开(公告)号：US06229941B1
公开(公告)日：2001-05-08
申请号：US09413797
申请日：1999-10-07
申请人： Shin-young Yoon , Se-yoon Kim , Kyung-ho Kwack
发明人： Shin-young Yoon , Se-yoon Kim , Kyung-ho Kwack
IPC分类号： G02B634
CPC分类号： G02B6/02095 , G02B6/02142 , G02B6/02152
摘要： An apparatus and method of fabricating long-period fiber grating is provided. The apparatus includes a fiber, a string, one end of which is fixed, that is located over the fiber and vibrates at a predetermined vibration frequency, a vibrating portion, which vibrates the string at the vibration frequency, to which the other end of the string is connected, and a laser source for illuminating a laser on the string and the fiber, wherein the laser is periodically transmitted by the fiber due to the vibration of the string, and thus the refractive index of the fiber is changed. The long-period fiber grating is easily formed by locating the string, which vibrates at a predetermined vibration frequency, over the fiber and illuminating a laser to the resultant structure.
摘要翻译：提供了一种制造长周期光纤光栅的设备和方法。该装置包括纤维，一端固定在纤维上并以预定的振动频率振动的弦，振动部分，其以振动频率振动，弦的另一端连接灯串和用于照射灯串和光纤上的激光的激光源，其中激光由于灯丝的振动而被光纤周期性地传输，因此光纤的折射率发生变化。通过将以预定振动频率振动的弦线定位在光纤上并将激光照射到所得结构上来容易地形成长周期光纤光栅。

5. 发明授权

US06568220B1 Method of fabricating optical fiber gratings maximizing residual mechanical stress in the optical fibers 失效
标题翻译：制造光纤光栅的方法使光纤中的残余机械应力最大化
公开(公告)号：US06568220B1
公开(公告)日：2003-05-27
申请号：US09521433
申请日：2000-03-08
申请人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Yong-Woo Park , Hyun-Soo Park , Kyung-Ho Kwack
发明人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Yong-Woo Park , Hyun-Soo Park , Kyung-Ho Kwack
IPC分类号： C03B37018
CPC分类号： G02B6/03694 , G02B6/02095 , G02B6/021 , G02B6/02114 , G02B6/02147 , G02B6/03627
摘要： An optical fiber for maximizing residual mechanical stress and an optical fiber grating fabricating method using the optical fiber are provided. The optical fiber includes a core formed of silica, for propagating light, and a cladding formed of boron-doped silica, surrounding the core. Alternatively, the optical fiber includes a core formed of phosphorous-doped silica and a cladding formed of silica, surrounding the core.
摘要翻译：提供了用于使残余机械应力最大化的光纤和使用该光纤的光纤光栅制造方法。光纤包括由二氧化硅形成的芯，用于传播光，以及由硼掺杂的二氧化硅形成的包围该芯的包层。或者，光纤包括由磷掺杂二氧化硅形成的芯和由二氧化硅形成的包围芯的芯。

6. 发明授权

US06392789B1 Erbium-doped optical fiber having gratings formed therein and fabrication method thereof 有权
标题翻译：其中形成有光栅的掺铒光纤及其制造方法
公开(公告)号：US06392789B1
公开(公告)日：2002-05-21
申请号：US09521940
申请日：2000-03-09
申请人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Young-Geun Han , Hyun-Soo Park , Kyung-Ho Kwack
发明人： Un-Chul Paek , Young-Joo Chung , Chang-Seok Kim , Young-Geun Han , Hyun-Soo Park , Kyung-Ho Kwack
IPC分类号： H01S300
CPC分类号： H01S3/06754 , G02B6/02147 , H01S3/0064 , H01S3/06708 , H01S3/09415 , H01S3/1608 , H01S2301/04
摘要： An erbium-doped optical fiber (EDF) and a fabricating method thereof The erbium-doped optical fiber has a core formed by substantially doping silica with erbium and having gratings formed therein at a predetermined period, for propagating light therethrough, and a cladding surrounding the core and having a lower refractive index than the core. Since the erbium-doped optical fiber acts as a gain flattening filter, an erbium-doped fiber amplifier formed out of the erbium-doped optical fiber obviates the need of splicing an erbium-doped optical fiber with a gain flattening filter.
摘要翻译：掺铒光纤（EDF）及其制造方法铒掺杂光纤具有芯，其通过基本上掺杂有铒的二氧化硅和在其中以预定的周期在其中形成光栅并通过其传播光而形成的芯，并且具有比芯部更低的折射率。由于掺铒光纤作为增益平坦化滤波器，所以由掺铒光纤形成的掺铒光纤放大器不需要利用增益平坦化滤波器对掺铒光纤进行拼接。

7. 发明授权

US06170297B2 Jig for manufacturing long period grating filter and apparatus and method for manufacturing long period grating filter using the same 失效
标题翻译：用于制造长周期光栅滤波器的夹具及使用其制造长周期光栅滤波器的装置和方法
公开(公告)号：US06170297B2
公开(公告)日：2001-01-09
申请号：US09140389
申请日：1998-08-26
申请人： Joo-nyung Jang , Kyung-ho Kwack
发明人： Joo-nyung Jang , Kyung-ho Kwack
IPC分类号： G01N2300
CPC分类号： G02B6/02071 , B24B19/226
摘要： An apparatus and method used in manufacturing a long period grating filter are provided. The apparatus used in manufacturing a long period grating filter includes an upper body including a plurality of teeth spaced from each other by a predetermined distance and a lower body having teeth spaced from each other by the same distance as the teeth of the upper body and a plurality of grooves in a direction perpendicular to the teeth in which an optical fiber is loaded, wherein the upper and lower bodies are engaged with each other, and a plurality of grooves are formed in the loaded optical fiber by abrading the loaded optical fiber by moving the upper body in a direction parallel to the teeth. According to the present invention, an excimer laser, various other expensive equipment, and an optical fiber sensitive to ultraviolet rays are not required for manufacturing the long period grating filter. Accordingly, complicated hydrogen processing is not necessary. Also, stability to temperature is excellent, since the resultant filter is not obtained by changing the refractive index of the optical fiber.
摘要翻译：提供了用于制造长周期光栅滤波器的装置和方法。用于制造长周期光栅滤光器的装置包括上主体，其包括彼此间隔开预定距离的多个齿，下体具有彼此间隔与上体的齿相同的距离，在垂直于加载有光纤的齿的方向上的多个槽，其中上部和下部主体彼此接合，并且在加载的光纤中通过移动来研磨加载的光纤而形成多个槽上身在平行于牙齿的方向上。根据本发明，制造长周期光栅滤波器不需要准分子激光器，各种其他昂贵的设备和对紫外线敏感的光纤。因此，不需要复杂的氢处理。此外，由于通过改变光纤的折射率不能获得所得到的滤光片，因此对温度的稳定性是优异的。

8. 发明授权

US6004703A Amplitude mask and apparatus for manufacturing long period grating filter using the same 失效
标题翻译：用于制造使用其的长周期光栅滤波器的幅度掩模和装置
公开(公告)号：US6004703A
公开(公告)日：1999-12-21
申请号：US119783
申请日：1998-07-21
申请人： Joo-nyung Jang , Kyung-ho Kwack , Bo-hun Choi
发明人： Joo-nyung Jang , Kyung-ho Kwack , Bo-hun Choi
IPC分类号： G02B5/18 , G02B5/20 , G02B6/02 , G03F7/00 , G03F9/00
CPC分类号： G03F7/001 , G02B6/02095 , G02B6/02142 , G03F1/50
摘要： An amplitude mask used in a long period grating filter manufacturing apparatus includes a metal substrate having a periodic transmission area having a period for selectively transmitting light and a non-transmission area through which light does not pass; and a piezo-electric transducer located on the non-transmission area of the metal substrate for changing the period of the periodic transmission area. The periodic transmission area is located in the middle of the metal substrate and the piezo-electric transducer is located on opposite sides of the periodic transmission area. Piezo-electric transducers may be located on the non-transmission area to vary the period of the periodic transmission area.
摘要翻译：在长周期光栅滤波器制造装置中使用的幅度掩模包括具有周期性传输区域的金属基板，该周期性传输区域具有用于选择性地透射光的周期和光不通过的非透射区域; 以及位于金属基板的非透射区域上的压电换能器，用于改变周期性传输区域的周期。周期性传输区域位于金属基板的中间，压电换能器位于周期性传输区域的相对侧。压电换能器可以位于非透射区域上以改变周期性传输区域的周期。

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