公开(公告)号：US06632757B2

公开(公告)日：2003-10-14

申请号：US09929554

申请日：2001-08-14

申请人： George H. Beall

发明人： George H. Beall

IPC分类号： C03C1004

CPC分类号： H01S3/17 ,  C03B32/02 ,  C03B37/01211 ,  C03B37/027 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2203/22 ,  C03B2205/56 ,  C03B2205/72 ,  C03C3/085 ,  C03C4/0071 ,  C03C10/0045 ,  C09K11/646 ,  C09K11/685 ,  H01S3/162 ,  H01S3/1623 ,  H01S3/163 ,  H01S3/1658

摘要： A glass-ceramic which is substantially and desirably totally transparent, and which contains a predominant crystal phase of forsterite. The glass-ceramic is formed from precursor glasses having the following compositions, in weight percent on an oxide basis: SiO2 30-60; Al2O3 10-25; MgO 13-30; K2O 8-20; TiO2 0-10; and GeO2 0-25. The glass-ceramic may be doped with up to 1 wt. % chromium oxide to impart optical activity thereto.

摘要翻译： 一种玻璃陶瓷，其基本上和期望地完全透明，并且含有镁橄榄石的主要结晶相。 玻璃陶瓷由具有以下组成的前体玻璃形成，以氧化物为基准的重量百分数：SiO 2：30-60; 2 O 3 10-25; MgO 13-30; K 2 O 8-20; 0＆lt; HIL＆gt;＆lt; PDAT＆gt; 2＆lt; 和GeO 2 0-25。 玻璃陶瓷可掺杂高达1wt。 ％氧化铬以赋予其光学活性

公开(公告)号：US06628684B2

公开(公告)日：2003-09-30

申请号：US10102883

申请日：2002-03-22

申请人： Yohei Kobayashi ,  Kenji Torizuka ,  Wei Zhiyi

发明人： Yohei Kobayashi ,  Kenji Torizuka ,  Wei Zhiyi

IPC分类号： H01S300

CPC分类号： H01S3/0823 ,  H01S3/005 ,  H01S3/07 ,  H01S3/0809 ,  H01S3/105 ,  H01S3/1112 ,  H01S3/1118 ,  H01S3/1307 ,  H01S3/1623 ,  H01S3/1658 ,  H01S3/2383

摘要： A timing synchronization device of a pulsed laser is composed of a first laser gain medium having a first gain region, a second laser gain medium having a second gain region that is not included in the first gain region, and first and second resonators provided with the first and second laser gain media, respectively, and arranged so that two laser pulses occurring in the first and second resonators, respectively, overlap with each other in one of the first and second laser gain media. The second laser gain medium has an oscillation wavelength at which the first laser gain medium crystal cannot cause oscillation.

公开(公告)号：US20020028739A1

公开(公告)日：2002-03-07

申请号：US09929549

申请日：2001-08-14

发明人： George H. Beall ,  Joseph E. Pierson ,  Linda R. Pinckney

IPC分类号： C03C010/04

CPC分类号： C03C13/046 ,  C03C4/0071 ,  C03C10/0045 ,  H01S3/162 ,  H01S3/1623 ,  H01S3/1658

摘要： A composition for a glass-ceramic material that contains a crystallinity of at least about 30% by weight of forsterite components at a liquidus temperature of about 1525null C. or below. The glass-ceramic has a composition, in weight percent on an oxide basis, consisting essentially of about: 40-60% SiO2; 10-25% Al2O3; 18-30% MgO; 3-10% Na2O; 0-10% K2O; >5-15% TiO2. The invention further comprises a method for achieving high crystalline yield at such a low liquidus with increased solubility of high levels of chromium ions. The glass-ceramics can be used in drawing optical fibers and as gain media in amplifier and laser devices for near infrared wavelengths.

摘要翻译： 一种用于玻璃 - 陶瓷材料的组合物，其在大约1525℃或更低的液相线温度下含有至少约30重量％的镁橄榄石组分的结晶度。 玻璃陶瓷具有基于氧化物的重量百分比的组成，基本上由约40-60％的SiO 2组成; 10-25％Al2O3; 18-30％MgO; 3-10％Na2O; 0-10％K2O; > 5-15％TiO2。 本发明还包括一种在这种低液相线下实现高结晶产率的方法，其具有高水平铬离子的溶解度增加。 玻璃陶瓷可用于绘制光纤和放大器中的增益介质以及用于近红外波长的激光器件。

公开(公告)号：US20160170117A1

公开(公告)日：2016-06-16

申请号：US14798655

申请日：2015-07-14

申请人： National Taiwan University of Science and Technology

发明人： Ping-hui Yeh ,  Heng-i Lee

IPC分类号： G02B5/30 ,  H01S5/022 ,  G02B26/00 ,  G02B6/42

CPC分类号： G02B5/3083 ,  G02B6/02295 ,  G02B6/4206 ,  G02B26/007 ,  H01S3/005 ,  H01S3/06716 ,  H01S3/06795 ,  H01S3/09415 ,  H01S3/1623 ,  H01S3/1658

摘要： The present invention discloses a light emitting module and a method for generating ultrabroadband near-infrared light and increasing the bandwidth and output power. The light emitting module includes a linearly polarized laser pump for generating a visible laser, a half-wave plate for adjusting the to polarization orientation of the visible laser, and a crystal optical fiber disposed on the output light path of the half-wave plate. The core of the crystal optical fiber is made of forsterite (Mg2SiO4) doped with Cr3+ and Cr4+ ions. The doping process comprises: depositing a chromium oxide layer on the lateral surface of the core and driving the chromium atoms into the core by high temperature diffusion; coupling the visible laser into the core to produce a spontaneous emission with wavelengths from 750 to 1350 nm continuously. Particularly, the continuous spectrum is adjustable by changing the polarization orientation of the visible laser via the half-wave plate.

摘要翻译： 本发明公开了一种发光模块和用于产生超宽带近红外光并增加带宽和输出功率的方法。 发光模块包括用于产生可见激光的线偏振激光泵，用于调节可见激光器的偏振取向的半波片和设置在半波片的输出光路上的晶体光纤。 晶体光纤的核心由掺杂有Cr3 +和Cr4 +离子的镁橄榄石（Mg2SiO4）制成。 掺杂工艺包括：在芯的侧表面上沉积氧化铬层，并通过高温扩散将铬原子驱入芯中; 将可见激光耦合到芯中以连续地产生具有750至1350nm波长的自发发射。 特别地，连续光谱可通过经由半波片改变可见激光器的偏振方向来调节。

公开(公告)号：US20060176914A1

公开(公告)日：2006-08-10

申请号：US11351682

申请日：2006-02-10

申请人： Gerald Bacher ,  David Hargis

发明人： Gerald Bacher ,  David Hargis

IPC分类号： H01S3/10

CPC分类号： H01S3/08059 ,  H01S3/0623 ,  H01S3/08031 ,  H01S3/105 ,  H01S3/1062 ,  H01S3/109 ,  H01S3/1623 ,  H01S3/1648 ,  H01S3/1658

摘要： A laser includes a narrow bandwidth AR coating for defining a frequency range for laser emission within the laser cavity. Advantageously, the narrow-band AR coating has a very low loss, which can be particularly useful if the gain medium has low gain. The narrow-band AR coating can be used to narrow the laser emission from a broadband gain medium (e.g. Cr:LiSAF), or to select from among discrete transition lines (e.g. Nd:YAG) without the use of cumbersome tuning elements. An etalon, which may be substantially uncoated, may be utilized to further narrow the fundamental wavelength. For a solid state gain medium, the AR coating may be formed on one of the optical faces. A nonlinear element may be included for frequency-conversion, and the AR coating constrains the lasing frequency in the presence of this nonlinear loss and assists in maintaining single frequency operation to provide a stable frequency-converted output.

摘要翻译： 激光器包括用于定义激光腔内的激光发射的频率范围的窄带宽AR涂层。 有利地，窄带AR涂层具有非常低的损耗，如果增益介质具有低增益，则其可以是特别有用的。 可以使用窄带AR涂层来缩小来自宽带增益介质（例如Cr：LiSAF）的激光发射，或者不使用繁琐的调谐元件从离散过渡线（例如Nd：YAG）中进行选择。 可以使用基本上未涂覆的标准具来进一步缩小基波长。 对于固态增益介质，可以在其中一个光学面上形成AR涂层。 可以包括用于频率转换的非线性元件，并且AR涂层在存在这种非线性损耗的情况下约束激光频率，并且有助于维持单频操作以提供稳定的频率转换输出。

公开(公告)号：US20030012233A1

公开(公告)日：2003-01-16

申请号：US10102883

申请日：2002-03-22

申请人： National Institute of Advanced Industrial Science and Technology

发明人： Yohei Kobayashi ,  Kenji Torizuka ,  Wei Zhiyi

IPC分类号： H01S003/10

CPC分类号： H01S3/0823 ,  H01S3/005 ,  H01S3/07 ,  H01S3/0809 ,  H01S3/105 ,  H01S3/1112 ,  H01S3/1118 ,  H01S3/1307 ,  H01S3/1623 ,  H01S3/1658 ,  H01S3/2383

摘要： A timing synchronization device of a pulsed laser is composed of a first laser gain medium having a first gain region, a second laser gain medium having a second gain region that is not included in the first gain region, and first and second resonators provided with the first and second laser gain media, respectively, and arranged so that two laser pulses occurring in the first and second resonators, respectively, overlap with each other in one of the first and second laser gain media. The second laser gain medium has an oscillation wavelength at which the first laser gain medium crystal cannot cause oscillation.

摘要翻译： 脉冲激光器的定时同步装置由具有第一增益区域的第一激光增益介质，不包括在第一增益区域中的第二增益区域的第二激光增益介质和具有第一增益区域的第一和第二谐振器组成， 第一和第二激光增益介质，并且被布置成使得分别在第一和第二谐振器中出现的两个激光脉冲在第一和第二激光增益介质之一中彼此重叠。 第二激光增益介质具有第一激光增益介质晶体不能引起振荡的振荡波长。

公开(公告)号：US4932031A

公开(公告)日：1990-06-05

申请号：US248749

申请日：1989-09-26

申请人： Robert R. Alfano ,  Vladimir Petricevic ,  Swapan Gayen

发明人： Robert R. Alfano ,  Vladimir Petricevic ,  Swapan Gayen

IPC分类号： H01S3/16

CPC分类号： H01S3/16 ,  H01S3/1623 ,  H01S3/1655 ,  H01S3/1658

摘要： A laser system in which the laser medium is a single crystal of Cr.sub.3+ :Mg.sub.2 SiO.sub.4 is disclosed. In one embodiment, the system comprises a single crystal of chromium doped forsterite and a cavity which includes a pair of 30 cm. radius mirror having high transmission at 543 nm (the pump wavelength) and high reflectivity in the 1150-1350 nm range. Room temperature vibronic pulsed laser action is obtained with this cavity. Laser action has been observed at 1235 nm and a bandwidth of 25 nm. The wavelength range is suitable for transmission through optical fibers and is useful in laser ranging and remote sensing. Because of the ultrawide fluorescence bandwidth and a 15 fluoroescence lifetime the system is suitable for high intensity, tunable, cw, Q switched mode locked operation. In the mode locked operation pulses as short as 10-500 femtosecond may be generated. A number of different embodiments of the invention are described.

摘要翻译： 公开了其中激光介质是Cr 3+：Mg 2 SiO 4的单晶的激光系统。 在一个实施例中，该系统包括铬掺杂的镁橄榄石的单晶和包括一对30cm的空腔。 在543nm（泵浦波长）具有高透射率的半径镜和在1150-1350nm范围内的高反射率。 使用该腔体获得室温振动脉冲激光作用。 已经观察到在1235nm处的激光作用和25nm的带宽。 波长范围适用于通过光纤传输，适用于激光测距和遥感。 由于超宽荧光带宽和15荧光寿命，该系统适用于高强度，可调谐，cw，Q切换模式锁定操作。 在模式锁定操作中，可能会产生短至10-500飞秒的脉冲。 描述了本发明的多个不同实施例。

公开(公告)号：US20170336548A1

公开(公告)日：2017-11-23

申请号：US15670192

申请日：2017-08-07

申请人： National Taiwan University of Science and Technology

发明人： Ping-hui YEH ,  Heng-i LEE

IPC分类号： G02B5/30 ,  G02B26/00 ,  H01S3/067 ,  G02B6/42 ,  H01S3/16 ,  H01S3/00 ,  H01S3/0941

CPC分类号： G02B5/3083 ,  G02B6/02295 ,  G02B6/4206 ,  G02B26/007 ,  H01S3/005 ,  H01S3/06716 ,  H01S3/06795 ,  H01S3/09415 ,  H01S3/1623 ,  H01S3/1658

摘要： A method for fabricating a light emitting module that generates ultrabroadband near-infrared light and increasing the output power. The light emitting module includes a linearly polarized laser pump for generating a visible laser, a half-wave plate for adjusting the polarization orientation of the visible laser, and a crystal optical fiber disposed on the output light path of the half-wave plate. The core of the crystal optical fiber is made of forsterite (Mg2SiO4) doped with Cr3+ and Cr4+ ions. The doping process includes: depositing a chromium oxide layer on the lateral surface of the core and driving the chromium atoms into the core by high temperature diffusion; coupling the visible laser into the core to produce a spontaneous emission with wavelengths from 750 to 1350 nm continuously. Particularly, the continuous spectrum is adjustable by changing the polarization orientation of the visible laser via the half-wave plate.

公开(公告)号：US06650670B1

公开(公告)日：2003-11-18

申请号：US09615265

申请日：2000-07-13

申请人： Yutaka Shimoji

发明人： Yutaka Shimoji

IPC分类号： H01S314

CPC分类号： H01S3/16 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/1648 ,  H01S3/1653 ,  H01S3/1658 ,  H01S3/1673 ,  H01S3/1685

摘要： Composite lasers made of contiguous layers of pure and doped polycrystalline ceramics are introduced. The close thermal contact between such layers of the same ceramic allows an efficient and low cost way to take full advantage of the higher allowed dopant concentrations and, therefore, of the higher maximum output laser power afforded by polycrystalline ceramic lasers. Many novel, unique examples are provided, which demonstrate the versatility and commercial merit of polycrystalline ceramic composite lasers.

摘要翻译： 引入了由纯和掺杂多晶陶瓷的连续层制成的复合激光器。 相同陶瓷的这种层之间的紧密热接触允许以有效和低成本的方式充分利用较高的允许掺杂浓度，并因此获得由多晶陶瓷激光器提供的更高的最大输出激光功率。 提供了许多新颖独特的实例，证明了多晶陶瓷复合激光器的多功能性和商业价值。

公开(公告)号：US20020013206A1

公开(公告)日：2002-01-31

申请号：US09929554

申请日：2001-08-14

发明人： George H. Beall

IPC分类号： C03C010/08 ,  C03C003/085

CPC分类号： H01S3/17 ,  C03B32/02 ,  C03B37/01211 ,  C03B37/027 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/40 ,  C03B2203/22 ,  C03B2205/56 ,  C03B2205/72 ,  C03C3/085 ,  C03C4/0071 ,  C03C10/0045 ,  C09K11/646 ,  C09K11/685 ,  H01S3/162 ,  H01S3/1623 ,  H01S3/163 ,  H01S3/1658

摘要： A glass-ceramic which is substantially and desirably totally transparent, and which contains a predominant crystal phase of forsterite. The glass-ceramic is formed from precursor glasses having the following compositions, in weight percent on an oxide basis: SiO2 30-60; Al2O3 10-25; MgO 13-30; K2O 8-20; TiO2 0-10; and GeO2 0-25. The glass-ceramic may be doped with up to 1 wt. % chromium oxide to impart optical activity thereto.

摘要翻译： 一种玻璃陶瓷，其基本上和期望地完全透明，并且含有镁橄榄石的主要结晶相。 玻璃陶瓷由具有以下组成的前体玻璃形成，以氧化物为基准的重量百分数：SiO 2 30-60; Al2O3 10-25; MgO 13-30; K2O 8-20; TiO2 0-10; 和GeO2 0-25。 玻璃陶瓷可掺杂高达1wt。 ％的氧化铬以赋予其光学活性。