会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 1. 发明授权
    • Measurement method of chromatic dispersion of optical beam waveguide using interference fringe measurement system
    • 使用干涉条纹测量系统的光束波导的色散测量方法
    • US08040523B2
    • 2011-10-18
    • US12511803
    • 2009-07-29
    • Kyong Hon KimSeunghwan KimSeounghun LeeElhang Lee
    • Kyong Hon KimSeunghwan KimSeounghun LeeElhang Lee
    • G01B9/02G01J3/45G01N21/00
    • G01M11/335G01M11/331G01M11/338
    • The present invention relates to a measurement method of the chromatic dispersion of an optical waveguide using an optical interferometer with a broadband multi-wavelength light source and an optical spectrum analyzing apparatus, wherein one arm, called “reference arm” of the interferometer's two arms has an adjustable air spacing and the other arm, called “sample arm” can contain said optical waveguide to be measured, and including the following measurement and analysis steps: measuring interference spectra of the optical beam output exiting from the said interferometer with an optical spectrum analyzing apparatus when said optical waveguide is connected to said sample arm, and when said optical waveguide is not connected to said sample arm respectively; by adjusting the reference arm length for appearance of clear interference patterns; converting the wavelength-domain interference spectra into frequency-domain interference spectra and calculating phase difference values of the interference peaks of one of the spectra from a predetermined reference peak as a function of the frequency change by counting the interference peak (or valley) points; finding a Taylor series curve fit function for each set of the phase difference value data corresponding to each of the two interference spectra; and calculating a chromatic dispersion coefficient of the optical waveguide by using the coefficients of the Taylor series curve fit functions.
    • 本发明涉及使用具有宽带多波长光源的光学干涉仪和光谱分析装置的光波导的色散的测量方法,其中干涉仪的两个臂的称为“参考臂”的一个臂具有 称为“样品臂”的可调节空气间距可以包含待测量的所述光波导,并且包括以下测量和分析步骤:测量从所述干涉仪离开的光束输出的干涉光谱与光谱分析 当所述光波导连接到所述样品臂时,并且当所述光波导分别不连接到所述样品臂时, 通过调整参考臂的长度来显现干扰图形的清晰度; 将波长域干涉光谱转换成频域干涉光谱,并通过对干扰峰(或谷)点进行计数,计算作为频率变化的函数的来自预定参考峰的一个频谱的干扰峰的相位差值; 针对与两个干涉光谱中的每一个相对应的每组相位差值数据,找到泰勒级数曲线拟合函数; 以及通过使用泰勒级数曲线拟合函数的系数来计算光波导的色散系数。
    • 3. 发明授权
    • Apparatus for generating an optical fiber laser capable of tuning a wavelength thereof
    • 用于产生能够调谐其波长的光纤激光器的装置
    • US06556596B1
    • 2003-04-29
    • US09435301
    • 1999-11-05
    • Ho Young KimDo Il ChangHak Kyu LeeKyong Hon Kim
    • Ho Young KimDo Il ChangHak Kyu LeeKyong Hon Kim
    • H01S330
    • H01S3/067H01S3/094096H01S3/1305H01S3/1312
    • An apparatus for generating an optical fiber laser capable of tuning a wavelength thereof. The apparatus comprises a pump laser to pump the light with changed polarization state, a light amplify fiber to produce a seed light using the pumped light from the pump laser at a certain operation wavelength and thereafter, when said seed light has stable frequency, to put out the light in that wavelength, a dispersion shift fiber to give a non-linear polarization effect to the output light from the light amplify fiber, a linear polarizer to tune the wavelength of the light from the dispersion shift fiber within a wavelength varying range, a light direction controller to give a certain oscillation direction to the tuned light, an optical element converging a light beam, with a cholesteric liquid crystal cell inserted, which transmits only a circularly polarized light having a consistent rotation period with the rotational direction of the liquid crystal surface and reflects all the rest of the light, and an output port to confirm a laser output light beam by putting out a certain portion of the light from said light converging element.
    • 一种用于产生能够调谐其波长的光纤激光器的装置。 该装置包括泵浦激光器以泵浦具有改变的偏振态的光,光放大光纤以使用来自泵浦激光器的泵浦光以一定的工作波长产生种子光,此后,当所述种子光具有稳定的频率时,放置 在该波长处的光,使色散位移光纤对来自光放大光纤的输出光产生非线性偏振效应,线性偏振器,以调节波长变化范围内来自色散位移光纤的光的波长, 向调谐光赋予一定的振荡方向的光方向控制器,使聚光的光学元件与被插入的胆甾醇型液晶单元一体地旋转,该液晶单元只透过与液体的旋转方向一致的旋转周期的圆偏振光 晶体表面反射所有其余的光,以及一个输出端口,通过放出一定的波数来确认激光输出光束 来自所述光会聚元件的光。
    • 4. 发明授权
    • Planar waveguide-type optical amplifier switch
    • 平面波导型光放大器开关
    • US06538804B1
    • 2003-03-25
    • US09433455
    • 1999-11-04
    • Kyong Hon KimYong Gyu ChoiHak Kyu LeeMin Yong JeonJoon Tae AhnDong Sung LimHo Young KimDo Il Chang
    • Kyong Hon KimYong Gyu ChoiHak Kyu LeeMin Yong JeonJoon Tae AhnDong Sung LimHo Young KimDo Il Chang
    • H01S300
    • G02F1/3132G02F1/225H01S5/4068H01S5/50
    • A planar waveguide-type optical amplifier switch is disclosed. The switch is developed with the purpose of solving the problems that the conventional waveguide-type optical switch, which has been being used in the optical communication technique, has an optical loss and thereby requires an external optical amplifier which makes the whole devices not suitable for forming an integrated compact device. The disclosed switch performs switching function from the refractive index change in the optical waveguides induced by electrical or optical controls as well as amplifying function of the optical signal, when it passes through the waveguides, from use of optical waveguides formed of a fluorescence emitting material with an optical pumping and a wavelength division multiplexing (WDM) optical waveguide-type coupler. The optical amplifier switch scheme, which provides a simultaneous optical switching and amplification in an optical waveguide form, allows the device fabricable in a compact integrated manner and more useful in practical applications. The optical amplifier switch in accordance with the present invention can replace the conventional optical switches of the prior art, and can promote technical development in the areas of high-capacity optical communication systems, massive optical signal processing, optical switching, optical computing, and so on.
    • 公开了一种平面波导型光放大器开关。 开关是为了解决在光通信技术中使用的常规波导型光开关具有光损耗并因此需要外部光放大器的问题而开发的,这使得整个器件不适合于 形成集成的紧凑型装置。 所公开的开关从通过电光或光控制引起的光波导中的折射率变化执行切换功能,以及当光信号通过波导时放大功能,使用由荧光发射材料形成的光波导与 光泵浦和波分复用(WDM)光波导型耦合器。 提供光波导形式的同时光切换和放大的光放大器开关方案允许该器件以紧凑的集成方式可制造并且在实际应用中更有用。 根据本发明的光放大器开关可以代替现有技术的传统光开关,并且可以促进大容量光通信系统,大规模光信号处理,光交换,光计算等领域的技术发展。 上。
    • 5. 发明授权
    • Structure of a passively mode-locked optical fiber laser
    • 被动锁模光纤激光器的结构
    • US5898716A
    • 1999-04-27
    • US934810
    • 1997-09-22
    • Joon Tae AhnHack Kyu LeeKyong Hon Kim
    • Joon Tae AhnHack Kyu LeeKyong Hon Kim
    • G02B6/00H01S3/067H01S3/098H01S3/108H01S3/16H01S3/30
    • H01S3/06791H01S3/06712H01S3/082H01S3/105H01S3/1112H01S3/1608
    • A laser structure for obtaining an optical pulse of a very short duration by using the benefit of a passive mode locking and for improving a repetition rate of an output optical pulse was described. In general, a passively mode-locked laser generates a short optical pulse than a active mode locked laser does, while it has difficulties in increasing the repetition rate of the output optical pulse because the repetition rate of the passively mode-locked laser is determined by the length of the resonator. In accordance with the present invention, a delayed optical path is added to the linear loop of a conventional figure-8 optical fiber laser. The propagation time difference .DELTA.T between the delayed optical path and undelayed short optical path is adjusted to a divisor of the round trip time, T, of the original resonator by properly adjusting the length of the delayed optical path. Thus, the repetition rate of the output optical pulse of the mode locked laser can be increased from 1/T Hz to 1/.DELTA.T Hz. The optical fiber laser which can fully exploit the advantages of the passive mode locking and improve the repetition rate of the output optical pulse in accordance with the present invention can be applied to a wide range of applications including an optical communication and an ultra high speed analysis of optical phenomena.
    • 描述了通过利用被动模式锁定和改善输出光脉冲的重复率来获得非常短持续时间的光脉冲的激光结构。 通常,被动锁模激光器产生比有源模式锁定激光器短的光脉冲,而由于被动锁模激光器的重复频率由被动锁模激光器的重复频率确定,所以难以增加输出光脉冲的重复率 谐振器的长度。 根据本发明,将延迟的光路添加到常规的图8的光纤激光器的线性环路中。 延迟光路和未延迟的短光路之间的传播时间差DELTA T通过适当地调节延迟光路的长度来调整到原始谐振器的往返时间T的除数。 因此,锁模激光器的输出光脉冲的重复率可以从1 / T Hz增加到1 / DELTA T Hz。 可以充分利用被动模式锁定的优点并提高根据本发明的输出光脉冲的重复率的光纤激光器可以应用于广泛的应用,包括光通信和超高速分析 的光学现象。