公开(公告)号：US20040075892A1

公开(公告)日：2004-04-22

申请号：US10619310

申请日：2003-07-14

Applicant: Cyber Laser Inc.

Inventor： Yusuke Tamaki ,  Kazuya Takasago ,  Taisuke Miura ,  Hitoshi Sekita

IPC: H01S003/00

CPC classification number: H01S3/235 ,  H01S3/1075

Abstract: The invention offers a regenerative optical amplifier enabling voltage to be easily applied to polarizing elements such as Pockels cells, without the need for complicated drive circuitry. An input beam of S-polarized light is reflected by a polarizer 1 and advances to a Pockels cell 2. In the time it takes for the input beam, having once passed through the Pockels cell 2, to be reflected by a reflective mirror 3 and return to the Pockels cell 2, a voltage VP1 causing a 90-degree rotation in the polarization of transmitted light is applied to the Pockels cell 2, and this applied voltage VP1 is maintained. The input beam is converted by the Pockels cell 2 into a P-polarized light pulse which is transmitted by the polarizer. Subsequently, the light pulse is converted from P-polarized light to S-polarized light and back to P-polarized light with each roundtrip of the Pockels cell 2, while passing each time between the reflective mirror 3, laser crystal 4 and reflective mirror 7, so as to be amplified in the resonator formed thereby. The amplified light pulse is extracted by applying a voltage VP2 causing a 90-degree rotation of the polarization of the transmitted light to the Pockels cell 6 to convert the light pulse to S-polarized light which is then reflected out of the resonator by the polarizer 5.

Abstract translation: 本发明提供一种再生式光放大器，其使电压容易地应用于诸如Pockels电池的偏振元件，而不需要复杂的驱动电路。 S偏振光的输入光束由偏振器1反射并前进到普克尔斯单元2.在输入光束一旦通过普克尔斯单元2所需的时间将被反射镜3反射，并且 返回到普克尔斯单元2，将透射光的偏振90度旋转的电压VP1施加到普克尔单元2，并且保持施加电压VP1。 输入光束由Pockels单元2转换成由偏振器透射的P偏振光脉冲。 随后，光脉冲从P偏振光转换成S偏振光，并且随着普克尔斯单元2的每个往返光而被转换成P偏振光，同时每次在反射镜3，激光晶体4和反射镜7之间通过 以便在由此形成的谐振器中被放大。 通过施加将透射光的偏振90度旋转到Pockels单元6的电压VP2来提取放大的光脉冲，以将光脉冲转换成S偏振光，然后将S偏振光从偏振器反射出谐振器 5。

公开(公告)号：US20040066811A1

公开(公告)日：2004-04-08

申请号：US10619305

申请日：2003-07-14

Applicant: Cyber Laser Inc.

Inventor： Yusuke Tamaki ,  Kazuya Takasago ,  Taisuke Miura ,  Hitoshi Sekita

IPC: H01S003/04

CPC classification number: H01S3/042 ,  H01S3/025 ,  H01S3/027 ,  H01S3/0404

Abstract: The present invention offers a laser oscillator device having sufficient cooling ability to maintain a lasing medium which generates high-density thermal energy at a temperature appropriate for use, while being capable of being made compact. The laser oscillator device comprises an excitation beam source for generating an excitation beam, a laser medium for receiving the excitation beam and performing optical amplification, a laser oscillator device for causing resonance of light emitted by the laser medium for laser oscillation, and a cooling system for cooling said laser medium, wherein the cooling system uses a gas as the heat-carrying medium.

Abstract translation: 本发明提供了具有足够的冷却能力的激光振荡器装置，以保持在适于使用的温度下产生高密度热能的激光介质，同时能够制造得紧凑。 激光振荡器装置包括用于产生激发光束的激发光束源，用于接收激发光束并执行光放大的激光介质，用于引起由激光介质发射的用于激光振荡的光的共振的激光振荡器装置，以及冷却系统 用于冷却所述激光介质，其中所述冷却系统使用气体作为所述载热介质。

公开(公告)号：US20040066828A1

公开(公告)日：2004-04-08

申请号：US10619303

申请日：2003-07-14

Applicant: Cyber Laser Inc.

Inventor： Yusuke Tamaki ,  Hitoshi Sekita ,  Kazuya Takasago ,  Taisuke Miura

IPC: H01S003/08

CPC classification number: H01S3/235 ,  H01S3/08 ,  H01S3/08072 ,  H01S3/106

Abstract: The present invention has the object of offering a laser resonator capable of maintaining high amplification efficiency even if the thermal lensing effect occurring in the laser medium varies during operation or over repeated operation and suspension of the laser device. The laser resonator comprises at least a pair of reflection portions (planar reflective mirrors 3) provided such as to allow a laser beam to oscillate therebetween; a laser medium provided on the optical path of the laser between the pair of reflection portions; an excitation portion (excitation laser device 5) for exciting the laser medium; an optical system (convex lens 1) provided on the optical path of the laser beam between the laser medium and the pair of reflection portions for changing the state of the laser in the laser medium; and a movement portion for moving the optical system along the optical axis of the laser.

Abstract translation: 本发明的目的是提供一种激光谐振器，即使在激光介质中发生的热透镜效应在操作期间或者在激光装置的重复操作和暂停时都会发生变化时，其能够保持高的放大效率。 激光谐振器包括至少一对反射部分（平面反射镜3），其被设置为允许激光束在它们之间振荡; 设置在所述一对反射部之间的所述激光的光路上的激光介质; 用于激发激光介质的激励部分（激发激光装置5） 在激光介质和一对反射部分之间设置在激光束的光路上的光学系统（凸透镜1），用于改变激光介质中激光的状态; 以及用于沿着激光的光轴移动光学系统的移动部分。

公开(公告)号：US20020009115A1

公开(公告)日：2002-01-24

申请号：US09876329

申请日：2001-06-07

Applicant: Cyber Laser Inc.

Inventor： Tetsumi Sumiyoshi ,  Hitoshi Sekita ,  Akira Shiratori

IPC: H01S003/10 ,  H01S003/091 ,  H01S003/094

CPC classification number: G02F1/39 ,  H01S3/0941 ,  H01S3/1024

Abstract: The invention offers a low-noise, compact, high-efficiency light generating device and an irradiation method thereof for use in medical applications. A fundamental harmonic laser head 106 is composed of a quasi-continuous wave oscillation mode laser diode (QCW-LD) 101, a laser crystal 103, a rear mirror 104 and an output mirror 105. The QCW-LD 101 is driven by an LD power source 102 capable of modulating the pulse waveform in time. A beam adjusting portion 108 comprises a wave plate, a polarizer, a lens and an isolator. A wavelength converting portion 112 is an optical parametric oscillator (OPO) comprising a non-linear optical crystal 109, an OPO input mirror and an OPO output mirror 111.

Abstract translation: 本发明提供一种用于医疗应用的低噪声，紧凑，高效的发光装置及其照射方法。 基波谐波激光头106由准连续波振荡模式激光二极管（QCW-LD）101，激光晶体103，后反射镜104和输出镜105组成.QCW-LD 101由LD 能够及时调制脉搏波形的电源102。 光束调节部分108包括波片，偏振器，透镜和隔离器。 波长转换部分112是包括非线性光学晶体109，OPO输入反射镜和OPO输出反射镜111的光学参量振荡器（OPO）。