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1. 发明授权

US08126023B2 Laser output switching by transverse mode modulation 失效
标题翻译：激光输出切换通过横向模式调制
公开(公告)号：US08126023B2
公开(公告)日：2012-02-28
申请号：US12298873
申请日：2007-04-30
申请人： Johan Stiens , Werner Vandermeiren
发明人： Johan Stiens , Werner Vandermeiren
IPC分类号： H01S3/098
CPC分类号： H01S3/11 , H01S3/0804 , H01S3/0805 , H01S3/08063 , H01S3/1062
摘要： A pulsed laser for machining, has a mode switch, e.g. Q-switch device (15, 30, 40), in a resonant optical cavity (20) capable of supporting a given lasing mode, e.g. a transverse mode of oscillation when lasing action is started, arranged to induce, e.g. temporarily, a localized change, e.g. loss, in the cavity. The latter alters the given lasing mode, e.g. causes the oscillation to hop to a higher transverse mode temporarily, which on its hand may be extinguished by an aperture limiting diaphragm (5) or equivalent and subsequently reduce the induced loss temporarily, to return the oscillation to the given transverse mode and output the laser pulse. A modulator can be used for inducing the temporary loss for a first transverse lasing mode and extinguishing the higher transverse mode with a diaphragm. The induced loss can be over a localized area much smaller than the dimensions of a beam of the laser, so that a miniaturized modulator can be used. In this way pulsed operation may be achieved. Alternatively, a steady switch between modes may be achieved.
摘要翻译：用于加工的脉冲激光器具有模式切换，例如，在能够支持给定的激光模式的谐振光学腔（20）中的Q开关器件（15,30,40）。当开始激光作用时横向振荡模式，被布置成诱导例如暂时地，局部变化，例如损失，在腔里。后者改变了给定的激光模式，例如导致振荡暂时跳到更高的横向模式，其手可能被孔径限制膜片（5）或等效物消灭，随后暂时减小感应损耗，使振荡返回给定的横向模式并输出激光脉冲。调制器可以用于诱导第一横向激光模式的暂时损耗，并用隔膜熄灭较高的横向模式。感应损耗可以超过比激光束的尺寸小得多的局部区域，从而可以使用小型化的调制器。以这种方式可以实现脉冲操作。或者，可以实现模式之间的稳定切换。

2. 发明申请

US20120286163A1 EVANESCENT WAVE ABSORPTION BASED DEVICES 有权
标题翻译：基于EVANESCENT WAVE ABSORPTION的设备
公开(公告)号：US20120286163A1
公开(公告)日：2012-11-15
申请号：US13522732
申请日：2011-01-22
申请人： Johan Stiens , Werner Vandermeiren , Gennady Shkerdin , Roger Vounckx
发明人： Johan Stiens , Werner Vandermeiren , Gennady Shkerdin , Roger Vounckx
IPC分类号： G02F1/17 , H01S3/11 , G02F1/017 , G01J5/08 , G02F1/015
CPC分类号： G02F1/015 , G02F1/195 , G02F2001/0156
摘要： A device (100) is described for actively or passively modulating incident radiation, the device comprising at least one diffraction means (10) adapted for evanescent wave excitation upon irradiation with the incident radiation, and an absorption layer (40) adjacent the at least one diffraction means (10) so that the evanescent waves can interact with the absorption layer (40). The absorption layer (40) has alterable absorption properties so as to alter the absorption of the evanescent waves resulting in modulating of the incident radiation. The device (100) may be for actively modulating incident radiation thus being e.g. a modulator for laser radiation. Alternatively, the device may be for passively modulating incident radiation, thus acting as a sensing device for sensing environmental parameters.
摘要翻译：描述了用于主动或被动地调制入射辐射的装置（100），该装置包括适于在与入射辐射照射时的ev逝波激发的至少一个衍射装置（10）以及与该至少一个相邻的吸收层（40）衍射装置（10），使得ev逝波能够与吸收层（40）相互作用。吸收层（40）具有可变的吸收特性，以便改变导致调制入射辐射的ev逝波的吸收。装置（100）可以用于主动调制入射辐射，从而例如。激光辐射调制器。或者，该装置可以用于被动地调制入射辐射，从而用作用于感测环境参数的感测装置。

3. 发明授权

US08921794B2 Evanescent wave absorption based devices 有权
标题翻译：基于衰减波吸收的器件
公开(公告)号：US08921794B2
公开(公告)日：2014-12-30
申请号：US13522732
申请日：2011-01-22
申请人： Johan Stiens , Werner Vandermeiren , Gennady Shkerdin , Roger Vounckx
发明人： Johan Stiens , Werner Vandermeiren , Gennady Shkerdin , Roger Vounckx
IPC分类号： G01J5/02 , G02F1/19 , G02F1/015
CPC分类号： G02F1/015 , G02F1/195 , G02F2001/0156
摘要： A device (100) is described for actively or passively modulating incident radiation, the device comprising at least one diffraction means (10) adapted for evanescent wave excitation upon irradiation with the incident radiation, and an absorption layer (40) adjacent the at least one diffraction means (10) so that the evanescent waves can interact with the absorption layer (40). The absorption layer (40) has alterable absorption properties so as to alter the absorption of the evanescent waves resulting in modulating of the incident radiation. The device (100) may be for actively modulating incident radiation thus being e.g. a modulator for laser radiation. Alternatively, the device may be for passively modulating incident radiation, thus acting as a sensing device for sensing environmental parameters.
摘要翻译：描述了用于主动或被动地调制入射辐射的装置（100），该装置包括适于在与入射辐射照射时的ev逝波激发的至少一个衍射装置（10）以及与该至少一个相邻的吸收层（40）衍射装置（10），使得ev逝波能够与吸收层（40）相互作用。吸收层（40）具有可变的吸收特性，以便改变导致调制入射辐射的ev逝波的吸收。装置（100）可以用于主动调制入射辐射，从而例如。激光辐射调制器。或者，该装置可以用于被动地调制入射辐射，从而用作用于感测环境参数的感测装置。

4. 发明申请

US20120250706A1 TRANSVERSE LASER MODE SWITCHING 审中-公开
标题翻译：横向激光模式切换
公开(公告)号：US20120250706A1
公开(公告)日：2012-10-04
申请号：US13515694
申请日：2010-12-10
申请人： Johan Stiens , Werner Vandermeiren
发明人： Johan Stiens , Werner Vandermeiren
IPC分类号： H01S3/09
CPC分类号： H01S3/106 , H01S3/0804 , H01S3/0805 , H01S3/08059 , H01S3/08068 , H01S3/0815 , H01S3/105 , H01S3/11
摘要： A laser (100) for outputting laser radiation includes a lasing material (110) in a resonant cavity (20) adapted for supporting a given lasing mode of oscillation. The laser (100) furthermore has at least one laser mirror (124) including a transparent portion for transmitting only a part of a beam of the laser (100) substantially smaller than the dimension of the beam of the laser (100) and the laser (100) includes a mode switching device (120) adapted to induce a change in the transmitted part of the beam, for altering the given lasing mode. A corresponding laser mirror (124), controller and a method for controlling a laser (100) also are described.
摘要翻译：用于输出激光辐射的激光器（100）包括在适于支持给定的激光振荡模式的谐振腔（20）中的激光材料（110）。激光器（100）还具有至少一个激光反射镜（124），该激光反射镜（124）包括透明部分，用于仅透射部分激光束（100）的一部分，其基本上小于激光束（100）的光束尺寸和激光（100）包括模式切换装置（120），其适于引起所述光束的透射部分的变化，以改变给定的激光模式。还描述了相应的激光镜（124），控制器和用于控制激光（100）的方法。

5. 发明申请

US20090074015A1 LASER OUTPUT SWITCHING BY TRANSVERSE MODE MODULATION 失效
标题翻译：通过横向模式调制的激光输出开关
公开(公告)号：US20090074015A1
公开(公告)日：2009-03-19
申请号：US12298873
申请日：2007-04-30
申请人： Johan Stiens , Werner Vandermeiren
发明人： Johan Stiens , Werner Vandermeiren
IPC分类号： H01S3/098 , H01S3/00
CPC分类号： H01S3/11 , H01S3/0804 , H01S3/0805 , H01S3/08063 , H01S3/1062
摘要： A pulsed laser for machining, has a mode switch, e.g. Q-switch device (15, 30, 40), in a resonant optical cavity (20) capable of supporting a given lasing mode, e.g. a transverse mode of oscillation when lasing action is started, arranged to induce, e.g. temporarily, a localized change, e.g. loss, in the cavity. The latter alters the given lasing mode, e.g. causes the oscillation to hop to a higher transverse mode temporarily, which on its hand may be extinguished by an aperture limiting diaphragm (5) or equivalent and subsequently reduce the induced loss temporarily, to return the oscillation to the given transverse mode and output the laser pulse. A modulator can be used for inducing the temporary loss for a first transverse lasing mode and extinguishing the higher transverse mode with a diaphragm. The induced loss can be over a localized area much smaller than the dimensions of a beam of the laser, so that a miniaturized modulator can be used. In this way pulsed operation may be achieved. Alternatively, a steady switch between modes may be achieved.
摘要翻译：用于加工的脉冲激光器具有模式切换，例如，在能够支持给定的激光模式的谐振光学腔（20）中的Q开关器件（15,30,40）。当开始激光作用时横向振荡模式，被布置成诱导例如暂时地，局部变化，例如损失，在腔里。后者改变了给定的激光模式，例如导致振荡暂时跳到更高的横向模式，其手可能被孔径限制膜片（5）或等效物消灭，随后暂时减小感应损耗，使振荡返回给定的横向模式并输出激光脉冲。调制器可以用于诱导第一横向激光模式的暂时损耗，并用隔膜熄灭较高的横向模式。感应损耗可以超过比激光束的尺寸小得多的局部区域，从而可以使用小型化的调制器。以这种方式可以实现脉冲操作。或者，可以实现模式之间的稳定切换。

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