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    • 3. 发明授权
    • Mode-locked laser stabilizing apparatus and method thereof
    • 锁模式激光稳定装置及其方法
    • US06560251B1
    • 2003-05-06
    • US09705582
    • 2000-11-02
    • Min Yong JeonHak Kyu LeeDong Sung LimJoon Tae AhnDo Il ChangKyong Hon Kim
    • Min Yong JeonHak Kyu LeeDong Sung LimJoon Tae AhnDo Il ChangKyong Hon Kim
    • H01S313
    • H01S3/06791H01S3/06712H01S3/08059H01S3/108H01S3/1109H01S3/139
    • There is disclosed a mode-locked optical fiber laser stabilizing apparatus for stabilizing the length of the optical fiber laser resonator by feedbacking the optical signals to the laser resonator, in the direction where the signal reflected by the optical fiber loop mirror is detected as an error signal to minimize the signal, and method thereof. According to the present invention, a resonator stabilizing apparatus in an optical fiber laser includes a non-linear optical amplitude loop mirror (NALM) for non-linearly amplifying a laser pumped laser light, a linear loop mirror of a closed loop shape for confining the laser light sufficiently amplified by the non-linear optical amplitude loop mirror; a light isolator for proceeding the light confined by said linear loop mirror only in one direction, an optical coupler for detecting the light proceeding in the direction opposite to the light isolator by the linear loop mirror, the phase of which is varied in the non-linear optical amplitude loop mirror, and a piezo-electric transducer (PZT) for performing a signal processing for minimizing the amount of light proceeding in an opposite direction when the light detector detects the light proceeding in the opposite direction and feedbacking again the light to stabilize the light, the light detector is coupled by the linear loop mirror and the optical coupler.
    • 公开了一种锁模光纤激光稳定装置,用于通过将光信号反馈到激光谐振器,使光纤环路反射的信号被检测为误差的方向来稳定光纤激光谐振器的长度 信号以使信号最小化,及其方法。 根据本发明,光纤激光器中的谐振器稳定装置包括用于非线性放大激光泵浦激光的非线性光学振幅反射镜(NALM),闭环形状的线性环形反射镜,用于限制 激光由非线性光学振幅回波镜充分放大; 光隔离器,用于仅在一个方向上进行由所述线性环形反射镜限制的光;光耦合器,用于检测通过线性环形反射镜在与光隔离器相反的方向上行进的光, 线性光学振幅回路镜和压电换能器(PZT),用于当光检测器检测到沿相反方向进行的光并且再次反馈光以稳定时进行信号处理以最小化在相反方向上进行的光量 光,光检测器通过线性环路镜和光耦合器耦合。
    • 5. 发明授权
    • Apparatus for measurement of an optical pulse shape
    • 用于测量光脉冲形状的装置
    • US06266145B1
    • 2001-07-24
    • US09441532
    • 1999-11-16
    • Hak Kyu LeeDong Sung LimMin Yong JeonJoon Tae AhnKyong Hon Kim
    • Hak Kyu LeeDong Sung LimMin Yong JeonJoon Tae AhnKyong Hon Kim
    • G01B902
    • G01J11/00
    • An apparatus for measurement of an optical pulse shape intended to measure the temporal waveform of an ultrashort single optical pulse is disclosed. The present invention comprises a linearly chirped supercontinuum light source that is synchronized with an optical pulse to be measured; a nonlinear optical interferometer to transform the temporal waveform of an incident optical pulse into a spectrum using an incident light from said supercontinuum light source; and an optical spectrum analyzer to measure the wavelength of the light passing through the nonlinear interferometer so that it can measure the temporal waveform of a single optical pulse. The present invention employs the method that transforms the temporal waveform of an incident optical pulse into a spectrum and measures the wavelength using a linearly chirped supercontinuum light source, a nonlinear optical interferometer, and an optical spectrum analyzer. The present invention provides an apparatus for measurement of an optical pulse shape that is able to measure the waveform not with the repeated measurements but with a single shot measurement.
    • 公开了一种用于测量旨在测量超短单个光脉冲的时间波形的光脉冲形状的装置。 本发明包括与要测量的光脉冲同步的线性啁啾超连续谱光源; 使用来自所述超连续光源的入射光将入射光脉冲的时间波形变换为光谱的非线性光学干涉仪; 以及光谱分析仪来测量穿过非线性干涉仪的光的波长,以便它可以测量单个光脉冲的时间波形。 本发明采用将入射光脉冲的时间波形变换为光谱并使用线性啁啾超连续光源,非线性光学干涉仪和光谱分析仪测量波长的方法。 本发明提供了一种用于测量光脉冲形状的装置,该装置能够测量不是重复测量而不是单次测量的波形。
    • 10. 发明授权
    • Optical fiber mode-locked laser
    • 光纤锁模激光器
    • US06385216B1
    • 2002-05-07
    • US09439595
    • 1999-11-12
    • Do Il ChangHo Young KimKyong Hon KimMin Yong Jeon
    • Do Il ChangHo Young KimKyong Hon KimMin Yong Jeon
    • H01S3067
    • H01S3/067H01S3/06712H01S3/09415H01S3/1112
    • An optical fiber mode-locked laser is disclosed. The laser comprises a gain medium doped optical fiber to achieve a population inversion between high and low energy levels by a pump light source and to oscillate optical waves in sequence, a cholesteric liquid crystal circular polarization mirror to transmit the waves from the pump light source and to be operated as a circular polarization reflection mirror for the oscillated optical waves from the gain medium doped optical fiber, a polarization controller to control the polarization state of the proceeding light which is oscillated from the gain medium doped optical fiber, a dispersion shifted fiber to give a non-linear effect to the proceeding light through the polarization controller, and an optical fiber laser output mirror which forms a resonator by putting out some portion of the proceeding light by transmission and reflecting the other portion of the light. With the present invention, one can effectively produce an ultrashort pulse with a simple structure and a few parts thereby improve an economic competence.
    • 公开了一种光纤锁模激光器。 激光器包括增益介质掺杂光纤,以通过泵浦光源实现高能量和低能量之间的群体反转,并且依次振荡光波;胆甾型液晶圆偏振镜,用于传输来自泵浦光源的波;以及 作为用于来自增益介质掺杂光纤的振荡光波的圆偏振反射镜,用于控制从增益介质掺杂光纤振荡的行进光的偏振状态的偏振控制器,将色散位移光纤 对通过偏振光控制器的行进光进行非线性效应,以及光纤激光输出反射镜,其通过透射并反射光的另一部分而放出进行中的一部分光而形成谐振器。 利用本发明,可以有效地生产具有简单结构和少量零件的超短脉冲,从而提高经济能力。