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1. 发明申请

US20120320934A1 ENVIRONMENTALLY STABLE OPTICAL FIBER MODE-LOCKED LASER GENERATING DEVICE HAVING AN ACHROMATIC QUARTER WAVE PLATE 有权
标题翻译：环境稳定的光纤模式锁定激光发生装置，具有高光四季波片
公开(公告)号：US20120320934A1
公开(公告)日：2012-12-20
申请号：US13516949
申请日：2010-12-15
申请人： Tai-Hyun Yoon , Gwang-Hoon Jang
发明人： Tai-Hyun Yoon , Gwang-Hoon Jang
IPC分类号： H01S3/067 , B82Y99/00
CPC分类号： H01S3/1118 , H01S3/06712 , H01S3/0675 , H01S3/08054 , H01S3/10061
摘要： An Environmentally stable optical fiber mode-locked laser generating device having an achromatic quarter wave plate is disclosed. An optical fiber unit is formed of a polarization maintaining (PM) optical fiber, and a Bragg grating is formed on a first region from one end in direction to the other end, a gain material is doped on a core of a remaining second region. An optical coupling unit provides a pump laser input to one end of the optical fiber unit, and outputs a laser input from the optical fiber unit. A lens unit converts a laser output from the other end of the optical fiber unit and focuses the laser on a certain regime. A polarization control unit includes an achromatic quarter wave plate (AQWP) which is disposed between the lenses constituting the lens unit and made by laminating two quarter wave plates (QWPs) such that fast-axes of the QWPs are orthogonal to each other, and controls mode-locking of the laser and spectral bandwidth by adjusting an angle of the AQWP with respect to a fast-axis or a slow-axis of the optical fiber unit. A saturable absorbing unit saturably absorbs and reflects the laser passed through the second lens, resulting in mode-locking.
摘要翻译：公开了一种具有无色四分之一波片的环境稳定的光纤锁模激光发生装置。光纤单元由偏振维持（PM）光纤形成，并且布拉格光栅形成在从方向一端到另一端的第一区域上，增益材料掺杂在剩余的第二区域的芯上。光耦合单元为光纤单元的一端提供泵浦激光输入，并从光纤单元输出激光输入。透镜单元将来自光纤单元的另一端的激光输出转换成一定的状态。偏振控制单元包括一个非彩色四分之一波片（AQWP），它设置在构成透镜单元的透镜之间，并通过层叠两个四分之一波片（QWP）制成，使得QWP的快轴彼此正交，并且控制通过调整AQWP相对于光纤单元的快轴或慢轴的角度来激光的模式锁定和光谱带宽。饱和吸收单元可饱和吸收并反射穿过第二透镜的激光，导致锁模。

2. 发明授权

US08817829B2 Apparatus for generating single-polarization mode-locked laser capable of energy control 有权
标题翻译：用于产生能量控制的单偏振锁模激光器的装置
公开(公告)号：US08817829B2
公开(公告)日：2014-08-26
申请号：US14123550
申请日：2012-05-31
申请人： Tai-Hyun Yoon
发明人： Tai-Hyun Yoon
IPC分类号： H01S3/30
CPC分类号： H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/08059 , H01S3/09415 , H01S3/10061 , H01S3/1118 , H01S3/1618
摘要： Provided is an apparatus for generating a single-polarization mode-locked laser capable of energy control. The apparatus for generating a single-polarization mode-locked laser is configured to adjust at least one of a focal length of a lens focusing laser light on a semiconductor saturable absorber mirror (SESAM) functioning as a saturable absorber, power of pump laser light, and reflectivity of an output coupler (OC) to set fluence, which is defined as energy density per unit area of the laser light incident on the saturable absorber, to be greater than reference fluence, which is energy density per unit area of the laser light incident on the saturable absorber when reflectivity of the saturable absorber is a maximum. Accordingly, it is possible to generate a single-polarization mode-locked laser, of which energy can be controlled, without generating multiple pulses.
摘要翻译：提供了一种用于产生能量控制的单偏振锁模激光器的装置。用于产生单偏振模式锁定激光器的装置被配置为调节透镜聚焦激光的焦距中的至少一个在用作可饱和吸收体的半导体可饱和吸收镜（SESAM），泵浦激光的功率，并且输出耦合器（OC）的反射率设定为入射到饱和吸收体上的激光的每单位面积的能量密度的能量密度，大于参考通量，其是激光单位面积的能量密度当可饱和吸收体的反射率最大时，在可饱和吸收体上的事件。因此，可以产生能够控制能量而不产生多个脉冲的单偏振锁模激光器。

3. 发明授权

US6064684A Unidirectionally operating laser apparatus using semimonolithic ring cavity 失效
标题翻译：单向操作激光设备使用半球形环腔
公开(公告)号：US6064684A
公开(公告)日：2000-05-16
申请号：US84794
申请日：1998-05-27
申请人： Tai Hyun Yoon , Jong Rak Park , Myung Sai Chung , Hai-Woong Lee
发明人： Tai Hyun Yoon , Jong Rak Park , Myung Sai Chung , Hai-Woong Lee
IPC分类号： H01S3/05 , H01S3/06 , H01S3/083 , H01S3/098
CPC分类号： H01S3/083 , H01S3/0615 , H01S3/08031 , H01S3/08054 , H01S3/09415 , H01S3/1066
摘要： A unidirectionally operating laser apparatus using a semi-monolithic ring cavity having a compact structure capable of achieving a high frequency stability and a high-speed laser frequency tuning and modulation. The laser apparatus includes a laser active medium having a curved surface exhibiting an anti-reflection characteristic for a pump laser beam from a pump laser incident thereon while exhibiting a high reflection characteristic for an oscillating laser beam, a planar surface exhibiting an anti-reflection characteristic for the oscillating laser beam, and an optically-active polarization rotator attached to one side portion of the planar surface. The laser apparatus also includes an output mirror separated from the laser active medium, the output mirror having a curved surface with a coating exhibiting a higher reflectance coefficient for S-polarized beams than that for P-polarized beams, and a piezo-electric transducer. The laser apparatus is applicable to a variety of scientific fields using continuous-wave wavelength-tunable lasers.
摘要翻译：使用具有能够实现高频稳定性和高速激光频率调谐和调制的紧凑结构的半单片环形腔的单向操作的激光装置。该激光装置包括激光活性介质，该激光活性介质具有对从入射到其上的泵浦激光器的泵激光束具有抗反射特性的弯曲表面，同时具有用于振荡激光束的高反射特性，具有抗反射特性的平面用于振荡激光束，以及附着在平面表面的一侧部分的光学活性偏振旋转器。激光装置还包括与激光活性介质分离的输出镜，输出镜具有弯曲表面，其中对于S偏振光束具有比P偏振光束更高的反射系数的涂层，以及压电换能器。激光装置适用于使用连续波长可调激光器的各种科学领域。

4. 发明授权

US5973786A Method for absolutely measuring the diffraction grating spacing and apparatus thereof 失效
$Method for absolutely measuring the diffraction grating spacing and apparatus thereof$
标题翻译：用于绝对测量衍射光栅间距的方法及其装置
公开(公告)号：US5973786A
公开(公告)日：1999-10-26
申请号：US3825
申请日：1998-01-07
申请人： Tai-Hyun Yoon , Cheon-Il Eom , Myung-Sai Chung
发明人： Tai-Hyun Yoon , Cheon-Il Eom , Myung-Sai Chung
IPC分类号： G01B11/14 , G01B9/02 , G01B11/26
CPC分类号： G01B9/02083 , G01B11/14 , G02B5/1861
摘要： A method of absolutely measuring the diffraction grating spacing and apparatus thereof, which solves the disadvantages of conventional techniques for measuring the diffraction grating spacing, and provides a method utilizing a new laser diffractometer capable of transferring the meter standard to the nanometer region. The invention comprises a first method which utilizes a wavelength stable laser for generating a stable laser beam of wavelength .lambda., 0th and 1st order diffracted beams diffracted at the diffraction grating, and a precision rotary encoder; and a second method utilizing two wave lengths .lambda..sub.1, .lambda..sub.2 of the wavelength stable laser, 0th and 1st order diffracted beams, and a precision rotary encoder.
摘要翻译：一种绝对测量衍射光栅间隔的方法及其装置，其解决了用于测量衍射光栅间隔的常规技术的缺点，并提供了一种利用能够将仪表标准传递到纳米区域的新型激光衍射仪的方法。本发明包括利用波长稳定的激光器产生在衍射光栅处衍射的波长λ，第0和1级衍射光束的稳定激光束的精密旋转编码器的第一种方法; 以及使用波长稳定激光器的第二波长λ1，λ2，第0和1级衍射光束的第二种方法，以及精密旋转编码器。

5. 发明授权

US08908721B2 Environmentally stable optical fiber mode-locked laser generating device having an achromatic quarter wave plate 有权
标题翻译：具有无色四分之一波片的环境稳定的光纤锁模激光发生装置
公开(公告)号：US08908721B2
公开(公告)日：2014-12-09
申请号：US13516949
申请日：2010-12-15
申请人： Tai-Hyun Yoon , Gwang-Hoon Jang
发明人： Tai-Hyun Yoon , Gwang-Hoon Jang
IPC分类号： H01S3/30 , H01S3/11 , H01S3/067 , H01S3/10 , H01S3/08
CPC分类号： H01S3/1118 , H01S3/06712 , H01S3/0675 , H01S3/08054 , H01S3/10061
摘要： An Environmentally stable optical fiber mode-locked laser generating device having an achromatic quarter wave plate is disclosed. An optical fiber unit is formed of a polarization maintaining (PM) optical fiber, and a Bragg grating is formed on a first region from one end in direction to the other end, a gain material is doped on a core of a remaining second region. An optical coupling unit provides a pump laser input to one end of the optical fiber unit, and outputs a laser input from the optical fiber unit. A lens unit converts a laser output from the other end of the optical fiber unit and focuses the laser on a certain regime. A polarization control unit includes an achromatic quarter wave plate (AQWP) which is disposed between the lenses constituting the lens unit and made by laminating two quarter wave plates (QWPs) such that fast-axes of the QWPs are orthogonal to each other, and controls mode-locking of the laser and spectral bandwidth by adjusting an angle of the AQWP with respect to a fast-axis or a slow-axis of the optical fiber unit. A saturable absorbing unit saturably absorbs and reflects the laser passed through the second lens, resulting in mode-locking.
摘要翻译：公开了一种具有无色四分之一波片的环境稳定的光纤锁模激光发生装置。光纤单元由偏振维持（PM）光纤形成，并且布拉格光栅形成在从方向一端到另一端的第一区域上，增益材料掺杂在剩余的第二区域的芯上。光耦合单元为光纤单元的一端提供泵浦激光输入，并从光纤单元输出激光输入。透镜单元将来自光纤单元的另一端的激光输出转换成一定的状态。偏振控制单元包括一个非彩色四分之一波片（AQWP），它设置在构成透镜单元的透镜之间，并通过层叠两个四分之一波片（QWP）制成，使得QWP的快轴彼此正交，并且控制通过调整AQWP相对于光纤单元的快轴或慢轴的角度来激光的模式锁定和光谱带宽。饱和吸收单元可饱和吸收并反射穿过第二透镜的激光，导致锁模。

6. 发明申请

US20140105233A1 APPARATUS FOR GENERATING SINGLE-POLARIZATION MODE-LOCKED LASER CAPABLE OF ENERGY CONTROL 有权
标题翻译：用于产生能量控制的单极化模式锁定激光器的装置
公开(公告)号：US20140105233A1
公开(公告)日：2014-04-17
申请号：US14123550
申请日：2012-05-31
申请人： Tai-Hyun Yoon
发明人： Tai-Hyun Yoon
IPC分类号： H01S3/067
CPC分类号： H01S3/06712 , H01S3/06725 , H01S3/0675 , H01S3/08059 , H01S3/09415 , H01S3/10061 , H01S3/1118 , H01S3/1618
摘要： Provided is an apparatus for generating a single-polarization mode-locked laser capable of energy control. The apparatus for generating a single-polarization mode-locked laser is configured to adjust at least one of a focal length of a lens focusing laser light on a semiconductor saturable absorber mirror (SESAM) functioning as a saturable absorber, power of pump laser light, and reflectivity of an output coupler (OC) to set fluence, which is defined as energy density per unit area of the laser light incident on the saturable absorber, to be greater than reference fluence, which is energy density per unit area of the laser light incident on the saturable absorber when reflectivity of the saturable absorber is a maximum. Accordingly, it is possible to generate a single-polarization mode-locked laser, of which energy can be controlled, without generating multiple pulses.
摘要翻译：提供了一种用于产生能量控制的单偏振锁模激光器的装置。用于产生单偏振模式锁定激光器的装置被配置为调节透镜聚焦激光的焦距中的至少一个在用作可饱和吸收体的半导体可饱和吸收镜（SESAM），泵浦激光的功率，输出耦合器（OC）的反射率设定为入射到饱和吸收体上的激光的每单位面积的能量密度的能量密度大于参考注量，该参考通量是激光单位面积的能量密度当可饱和吸收体的反射率最大时，在可饱和吸收体上的事件。因此，可以产生能够控制能量而不产生多个脉冲的单偏振锁模激光器。

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