公开(公告)号：US20090238220A1

公开(公告)日：2009-09-24

申请号：US12437502

申请日：2009-05-07

申请人： R.J. Dwayne Miller ,  Shujie Lin ,  Kresimir Franjic

发明人： R.J. Dwayne Miller ,  Shujie Lin ,  Kresimir Franjic

IPC分类号： H01S3/10 ,  G02F1/35

CPC分类号： G02F1/353 ,  G02F1/3525 ,  G02F1/3534 ,  G02F1/3551 ,  G02F2001/3503 ,  G02F2001/3509 ,  H01S3/0092

摘要： A device for generating a high power frequency converted laser beam includes a nonlinear optical crystal having an entrance surface and a curved surface. The nonlinear optical crystal is configured to receive at least one laser beam at the entrance surface and provide a frequency converted beam through a frequency conversion process. The device also includes an optical coating coupled to the curved surface. The reflectance of the optical coating is greater than 50% at a wavelength of the frequency converted beam. Additionally, the far field divergence angle of the frequency converted beam increases after reflection off the curved surface. The device further includes a heat sink in thermal contact with the optical coating.

摘要翻译： 用于产生高功率频率转换的激光束的装置包括具有入射面和曲面的非线性光学晶体。 非线性光学晶体被配置为在入射面处接收至少一个激光束，并通过频率转换处理提供频率转换的光束。 该装置还包括耦合到弯曲表面的光学涂层。 在频率转换光束的波长处，光学涂层的反射率大于50％。 此外，频率转换光束的远场发散角在从曲面反射之后增加。 该装置还包括与光学涂层热接触的散热器。

公开(公告)号：US20080037598A1

公开(公告)日：2008-02-14

申请号：US11739652

申请日：2007-04-24

申请人： R.J. Miller ,  Shujie Lin ,  Kresimir Franjic

发明人： R.J. Miller ,  Shujie Lin ,  Kresimir Franjic

IPC分类号： H01S3/10

CPC分类号： G02F1/353 ,  G02F1/3525 ,  G02F1/3534 ,  G02F1/3551 ,  G02F2001/3503 ,  G02F2001/3509 ,  H01S3/0092

摘要： A device for generating a frequency converted laser beam includes a nonlinear crystal having a first end face and a second end face opposed to the first end face. The nonlinear crystal is configured to receive at least one input laser beam at the first end face and output a frequency converted beam at the second face. A beam waist of the at least one input laser beam is positioned between the first end face and the second end face during a frequency conversion process. The device also includes a second crystal having a first end face bonded to the second end face of the nonlinear crystal and a second end face opposed to the first end face. A beam diameter of the frequency converted beam at the first end face of the second crystal is less than a beam diameter of the frequency converted beam at the second end face of the second crystal.

摘要翻译： 用于产生变频激光束的装置包括具有与第一端面相对的第一端面和第二端面的非线性晶体。 非线性晶体被配置为在第一端面处接收至少一个输入激光束并且在第二面处输出频率转换的光束。 在频率转换过程中，至少一个输入激光束的束腰定位在第一端面和第二端面之间。 该装置还包括具有接合到非线性晶体的第二端面的第一端面和与第一端面相对的第二端面的第二晶体。 在第二晶体的第一端面处的频率转换光束的光束直径小于第二晶体的第二端面处的频率转换光束的光束直径。

公开(公告)号：US07852886B2

公开(公告)日：2010-12-14

申请号：US12437502

申请日：2009-05-07

申请人： R. J. Dwayne Miller ,  Shujie Lin ,  Kresimir Franjic

发明人： R. J. Dwayne Miller ,  Shujie Lin ,  Kresimir Franjic

IPC分类号： H01S3/00

CPC分类号： G02F1/353 ,  G02F1/3525 ,  G02F1/3534 ,  G02F1/3551 ,  G02F2001/3503 ,  G02F2001/3509 ,  H01S3/0092

摘要： A device for generating a high power frequency converted laser beam includes a nonlinear optical crystal having an entrance surface and a curved surface. The nonlinear optical crystal is configured to receive at least one laser beam at the entrance surface and provide a frequency converted beam through a frequency conversion process. The device also includes an optical coating coupled to the curved surface. The reflectance of the optical coating is greater than 50% at a wavelength of the frequency converted beam. Additionally, the far field divergence angle of the frequency converted beam increases after reflection off the curved surface. The device further includes a heat sink in thermal contact with the optical coating.

摘要翻译： 用于产生高功率频率转换的激光束的装置包括具有入射面和曲面的非线性光学晶体。 非线性光学晶体被配置为在入射面处接收至少一个激光束，并通过频率转换处理提供频率转换的光束。 该装置还包括耦合到弯曲表面的光学涂层。 在频率转换光束的波长处，光学涂层的反射率大于50％。 此外，频率转换光束的远场发散角在从曲面反射之后增加。 该装置还包括与光学涂层热接触的散热器。

公开(公告)号：US07542490B2

公开(公告)日：2009-06-02

申请号：US11739652

申请日：2007-04-24

申请人： R. J. Dwayne Miller ,  Shujie Lin ,  Kresimir Franjic

发明人： R. J. Dwayne Miller ,  Shujie Lin ,  Kresimir Franjic

IPC分类号： H01S3/10

CPC分类号： G02F1/353 ,  G02F1/3525 ,  G02F1/3534 ,  G02F1/3551 ,  G02F2001/3503 ,  G02F2001/3509 ,  H01S3/0092

摘要： A device for generating a frequency converted laser beam includes a nonlinear crystal having a first end face and a second end face opposed to the first end face. The nonlinear crystal is configured to receive at least one input laser beam at the first end face and output a frequency converted beam at the second face. A beam waist of the at least one input laser beam is positioned between the first end face and the second end face during a frequency conversion process. The device also includes a second crystal having a first end face bonded to the second end face of the nonlinear crystal and a second end face opposed to the first end face. A beam diameter of the frequency converted beam at the first end face of the second crystal is less than a beam diameter of the frequency converted beam at the second end face of the second crystal.

摘要翻译： 用于产生变频激光束的装置包括具有与第一端面相对的第一端面和第二端面的非线性晶体。 非线性晶体被配置为在第一端面处接收至少一个输入激光束并且在第二面处输出频率转换的光束。 在频率转换过程中，至少一个输入激光束的束腰定位在第一端面和第二端面之间。 该装置还包括具有接合到非线性晶体的第二端面的第一端面和与第一端面相对的第二端面的第二晶体。 在第二晶体的第一端面处的频率转换光束的光束直径小于第二晶体的第二端面处的频率转换光束的光束直径。

公开(公告)号：US10828119B2

公开(公告)日：2020-11-10

申请号：US15813761

申请日：2017-11-15

申请人： Kresimir Franjic ,  Kai Hynna ,  Joshua Richmond

发明人： Kresimir Franjic ,  Kai Hynna ,  Joshua Richmond

IPC分类号： A61B34/00 ,  A61B34/32 ,  A61B90/98 ,  B25J9/16 ,  A61B17/00 ,  A61B34/20 ,  A61B1/00 ,  A61B1/045

摘要： A medical navigation system is provided for controlling medical equipment during a medical procedure. The medical navigation system includes a passive radio frequency identification (RFID) tag, an RFID sensor for detecting the passive RFID tag, a controller coupled to the RFID sensor, and a robotic arm having an end effector and controlled by the controller. The RFID sensor provides a signal to the controller indicating presence of an activated passive RFID tag. The passive RFID tag has an antenna, an RFID circuit, and a switching device coupled to the RFID circuit for activating the passive RFID tag. The passive RFID tag is used to control a payload attached to the end effector.

公开(公告)号：US20210153963A1

公开(公告)日：2021-05-27

申请号：US17094757

申请日：2020-11-10

申请人： Kresimir Franjic ,  Kai Hynna ,  Joshua Richmond

发明人： Kresimir Franjic ,  Kai Hynna ,  Joshua Richmond

IPC分类号： A61B34/00 ,  A61B34/32 ,  A61B90/98 ,  B25J9/16

摘要： A medical navigation system is provided for controlling medical equipment during a medical procedure. The medical navigation system includes a passive radio frequency identification (RFID) tag, an RFID sensor for detecting the passive RFID tag, a controller coupled to the RFID sensor, and a robotic arm having an end effector and controlled by the controller. The RFID sensor provides a signal to the controller indicating presence of an activated passive RFID tag. The passive RFID tag has an antenna, an RFID circuit, and a switching device coupled to the RFID circuit for activating the passive RFID tag. The passive RFID tag is used to control a payload attached to the end effector.

公开(公告)号：US07630418B2

公开(公告)日：2009-12-08

申请号：US11328462

申请日：2006-01-10

申请人： Kresimir Franjic ,  Darren Kraemer ,  Michael L. Cowan ,  Renzhong Hua ,  R. J. Dwayne Miller

发明人： Kresimir Franjic ,  Darren Kraemer ,  Michael L. Cowan ,  Renzhong Hua ,  R. J. Dwayne Miller

IPC分类号： H01S3/10

CPC分类号： G02F1/39 ,  A61B18/20 ,  A61C1/0046 ,  A61N2005/0659 ,  B23K26/0624 ,  B23K26/38 ,  B23K2103/32 ,  B23K2103/50 ,  G02F1/3534 ,  G02F2201/16 ,  G02F2203/11 ,  H01S3/0092 ,  H01S3/2383

摘要： A laser system capable of efficient production of high energy sub-nanosecond pulses in the 2-15 μm spectral region is disclosed. Diode pumped solid state lasers are used as pump sources. The system design is simple, reliable and compact allowing for easy integration. The laser system includes a combination of compact solid-state ˜1 micron laser sources, producing high power picosecond pulses, with optical parametric amplification and a quasi-continuous wave laser for seeding the amplification process that enables the efficient conversion of the high power ˜1 micron laser radiation to tuneable mid-infrared sub-ns pulses. New parametric processes are presented for achieving high gains in bulk nonlinear crystals. Furthermore, a method of exceeding the fundamental conversion efficiency limit of direct three wave mixing is presented. The compact and robust nature of this novel laser system opens up the use of high power and high peak power mid-infrared laser pulses to a wide variety of important medical and dental applications.

摘要翻译： 公开了能够有效地生产2-15mum光谱区中的高能亚纳秒脉冲的激光系统。 二极管泵浦固体激光器用作泵浦源。 系统设计简单，可靠，紧凑，易于集成。 激光系统包括紧凑型固态〜1微米激光源的组合，产生高功率皮秒脉冲，具有光学参数放大和准连续波激光器，用于播种放大过程，使得能够有效地转换高功率〜1 微米激光辐射可调谐中红外sub-ns脉冲。 提出了新的参数化过程，以获得大量非线性晶体的高增益。 此外，提出了一种超过直接三波混频的基本转换效率极限的方法。 这种新颖的激光系统的紧凑和坚固的性质开启了大功率和高峰值功率的中红外激光脉冲对各种重要医疗和牙科应用的使用。

公开(公告)号：US20060153257A1

公开(公告)日：2006-07-13

申请号：US11328450

申请日：2006-01-10

申请人： Kresimir Franjic ,  Renzhong Hua ,  R. J. Miller

发明人： Kresimir Franjic ,  Renzhong Hua ,  R. J. Miller

IPC分类号： H01S3/04

CPC分类号： H01S3/0941 ,  H01S3/005 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0632 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/1611 ,  H01S3/1673 ,  H01S3/2333 ,  H01S3/2341 ,  H01S2301/02

摘要： The present invention discloses a laser amplifier with high gain and low thermally induced optical aberrations on the amplified laser beam. The amplifier designs allow simple multipass configurations to optimally extract the gain and reduce thermally induced index of refraction aberrations, making it possible to obtain an amplified laser beam of high quality combined with very high overall gains comparable to those achievable with expensive regenerative amplifiers. The amplifier includes a thin active laser solid to create the population inversion and associated heat generation within the thin laser active solid possible for the desired gain value. The system includes a cooling device in thermal contact with the thin active laser solid to provide good heat transport and high reflectivity coatings at the wavelengths of the pump and laser wavelengths. The pump light sources are laser diodes tuned to the maximum absorption of the laser active material. The amplifier also includes an optical system to transport the pump light to the laser active solid in such a way as to further confine the absorption of light along the two orthogonal directions in the plane of the laser active solid in order to get high population inversion and consequently high gains possible.

公开(公告)号：US09833294B2

公开(公告)日：2017-12-05

申请号：US14873814

申请日：2015-10-02

申请人： Kresimir Franjic ,  Kai Hynna ,  Joshua Richmond

发明人： Kresimir Franjic ,  Kai Hynna ,  Joshua Richmond

IPC分类号： A61B1/00 ,  A61B34/00 ,  A61B34/32 ,  A61B90/98 ,  B25J9/16 ,  A61B1/045

CPC分类号： A61B34/74 ,  A61B1/00059 ,  A61B1/00149 ,  A61B1/045 ,  A61B34/32 ,  A61B90/98 ,  A61B2017/00973 ,  A61B2034/2055 ,  A61B2034/741 ,  B25J9/1694 ,  B25J9/1697

摘要： A medical navigation system is provided for controlling medical equipment during a medical procedure. The medical navigation system includes a passive radio frequency identification (RFID) tag, an RFID sensor for detecting the passive RFID tag, a controller coupled to the RFID sensor, and a robotic arm having an end effector and controlled by the controller. The RFID sensor provides a signal to the controller indicating presence of an activated passive RFID tag. The passive RFID tag has an antenna, an RFID circuit, and a switching device coupled to the RFID circuit for activating the passive RFID tag. The passive RFID tag is used to control a payload attached to the end effector.

公开(公告)号：US20090296199A1

公开(公告)日：2009-12-03

申请号：US12453625

申请日：2009-05-15

申请人： Kresimir Franjic ,  Renzhong Hua ,  R. J. Dwayne Miller

发明人： Kresimir Franjic ,  Renzhong Hua ,  R. J. Dwayne Miller

IPC分类号： H01S5/00 ,  H01S3/042 ,  H01S3/0941

CPC分类号： H01S3/0941 ,  H01S3/005 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0632 ,  H01S3/094053 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/1611 ,  H01S3/1673 ,  H01S3/2333 ,  H01S3/2341 ,  H01S2301/02

摘要： The present invention discloses a laser amplifier with high gain and low thermally induced optical aberrations on the amplified laser beam. The amplifier designs allow simple multipass configurations to optimally extract the gain and reduce thermally induced index of refraction aberrations, making it possible to obtain an amplified laser beam of high quality combined with very high overall gains comparable to those achievable with expensive regenerative amplifiers. The amplifier includes a thin active laser solid to create the population inversion and associated heat generation within the thin laser active solid possible for the desired gain value. The system includes a cooling device in thermal contact with the thin active laser solid to provide good heat transport and high reflectivity coatings at the wavelengths of the pump and laser wavelengths. The pump light sources are laser diodes tuned to the maximum absorption of the laser active material. The amplifier also includes an optical system to transport the pump light to the laser active solid in such a way as to further confine the absorption of light along the two orthogonal directions in the plane of the laser active solid in order to get high population inversion and consequently high gains possible.