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。

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。

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。

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。

公开(公告)号：US20100103426A1

公开(公告)日：2010-04-29

申请号：US12566403

申请日：2009-09-24

申请人： Chang-Seok Kim ,  Myung-Yung Jeong ,  Jae-Seok Park ,  Eun-Joo Jung ,  Hyung-Seok Lee

发明人： Chang-Seok Kim ,  Myung-Yung Jeong ,  Jae-Seok Park ,  Eun-Joo Jung ,  Hyung-Seok Lee

IPC分类号： G01N21/47 ,  G01J3/44

CPC分类号： G01J3/2889 ,  G01D5/35316 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/10 ,  G01J3/26 ,  G01J3/42 ,  G01J3/4338

摘要： Provided is an optical sensor interrogation system. The optical sensor interrogation system includes: a light source unit which matches round-trip time of light and wavelength tunable cycle time of light in a resonator and emits light; a sensing unit which receives an optical signal in which a center wavelength periodically tunes, from the light source unit and tunes the center wavelength of the optical signal according to physical changes applied from the outside; and a signal processing unit which receives the optical signal reflected from the sensing unit, detects data, and images the data. In particular, the light source unit includes a delaying unit which delays the round-trip time of light and a tunable filter which tunes the wavelength of light so as to match the round-trip time of light with the wavelength tunable cycle time of light. Accordingly, a Fourier domain mode locking (FDML) wavelength swept laser, which operates at speed of several tens kHz or above, is used as a light source so that strain of a fluid, which changes in a short time interval of 0.1 msec or below, is precisely measured and thus a real-time analysis may be performed at high speed.

摘要翻译： 提供了一种光学传感器询问系统。 光传感器询问系统包括：光源单元，其匹配谐振器中的光的往返时间和波长可调周期时间，并发光; 感测单元，其从光源单元接收中心波长周期性地调谐的光信号，并根据从外部施加的物理变化调谐光信号的中心波长; 以及信号处理单元，其接收从感测单元反射的光信号，检测数据并对数据进行成像。 特别地，光源单元包括延迟光的往返时间的延迟单元和调节光的波长的可调谐滤波器，以便将光的往返时间与光的波长可调周期时间相匹配。 因此，以几十kHz或更高速度运行的傅立叶域模式锁定（FDML）波长扫描激光器被用作光源，使得在0.1msec或更短的时间间隔内变化的流体应变 ，被精确测量，因此可以高速执行实时分析。

公开(公告)号：US08400640B2

公开(公告)日：2013-03-19

申请号：US12566403

申请日：2009-09-24

申请人： Chang-Seok Kim ,  Myung-Yung Jeong ,  Jae-Seok Park ,  Eun-Joo Jung ,  Hyung-Seok Lee

发明人： Chang-Seok Kim ,  Myung-Yung Jeong ,  Jae-Seok Park ,  Eun-Joo Jung ,  Hyung-Seok Lee

IPC分类号： G01B9/02

CPC分类号： G01J3/2889 ,  G01D5/35316 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0245 ,  G01J3/10 ,  G01J3/26 ,  G01J3/42 ,  G01J3/4338

摘要： Provided is an optical sensor interrogation system. The optical sensor interrogation system includes: a light source unit which matches round-trip time of light and wavelength tunable cycle time of light in a resonator and emits light; a sensing unit which receives an optical signal in which a center wavelength periodically tunes, from the light source unit and tunes the center wavelength of the optical signal according to physical changes applied from the outside; and a signal processing unit which receives the optical signal reflected from the sensing unit, detects data, and images the data. In particular, the light source unit includes a delaying unit which delays the round-trip time of light and a tunable filter which tunes the wavelength of light so as to match the round-trip time of light with the wavelength tunable cycle time of light. Accordingly, a Fourier domain mode locking (FDML) wavelength swept laser, which operates at speed of several tens kHz or above, is used as a light source so that strain of a fluid, which changes in a short time interval of 0.1 msec or below, is precisely measured and thus a real-time analysis may be performed at high speed.

摘要翻译： 提供了一种光学传感器询问系统。 光传感器询问系统包括：光源单元，其匹配谐振器中的光的往返时间和波长可调周期时间，并发光; 感测单元，其从光源单元接收中心波长周期性调谐的光信号，并根据从外部施加的物理变化调谐光信号的中心波长; 以及信号处理单元，其接收从感测单元反射的光信号，检测数据并对数据进行成像。 特别地，光源单元包括延迟光的往返时间的延迟单元和调节光的波长的可调谐滤波器，以便匹配光的往返时间与光的波长可调周期时间。 因此，以几十kHz或更高速度运行的傅立叶域模式锁定（FDML）波长扫描激光器被用作光源，使得在0.1msec或更短的时间间隔内变化的流体应变 ，被精确测量，因此可以高速执行实时分析。