公开(公告)号：US06775432B2

公开(公告)日：2004-08-10

申请号：US09998842

申请日：2001-10-19

申请人： Santanu Basu

发明人： Santanu Basu

IPC分类号： G02B628

CPC分类号： G02B6/29307 ,  G02B6/2706 ,  G02B6/2931 ,  G02B6/29367 ,  G02B6/2938 ,  G02B6/29398 ,  G02B6/32 ,  H04J14/02

摘要： This invention relates to demultiplexing, routing and multiplexing of a number of different optical wavelength channels. The demultiplexer provides a basis for robust designs of multi-channel optical communication receiver, spectrum analyzer and router. The demultiplexer is operationally bi-directional providing a means for multiplexing.

摘要翻译： 本发明涉及多个不同光波长信道的解复用，路由和复用。 解复用器为多通道光通信接收机，频谱分析仪和路由器的鲁棒设计提供了基础。 解复用器在操作上是双向的，提供多路复用的手段。

公开(公告)号：US4833682A

公开(公告)日：1989-05-23

申请号：US101138

申请日：1987-09-24

申请人： Robert L. Byer ,  Santanu Basu

发明人： Robert L. Byer ,  Santanu Basu

IPC分类号： H01S3/042 ,  H01S3/06 ,  H01S3/092

CPC分类号： H01S3/0606 ,  H01S3/042 ,  H01S3/092 ,  H01S3/102 ,  H01S3/1026

摘要： A moving slab laser includes a slab carriage driven to-and-fro along a precise rectilinear reciprocal path by a liner motor under the control of a computer. The reciprocal motion of the slab is precisely guided by cross roller ways or ball bushing bearings to minimize non-rectilinear motion-dependent output beam steering effects. In one embodiment, the lasant slab is separated into a pair of axially spaced geometrically identical portions which are reciprocated in opposite directions to cancel motion direction dependent beam steering effects.

摘要翻译： 移动板坯激光器包括在计算机的控制下通过线性电动机沿着精确的直线往复路径来回驱动的板式支架。 板坯的往复运动由交叉滚子路径或滚珠轴承精确地引导，以最小化非直线运动相关的输出波束转向效应。 在一个实施例中，惰性板坯被分离成一对轴向间隔开的几何相同的部分，它们在相反的方向上往复运动以消除与方向相关的光束转向效应。

公开(公告)号：US5883706A

公开(公告)日：1999-03-16

申请号：US760547

申请日：1996-12-05

申请人： Santanu Basu

发明人： Santanu Basu

IPC分类号： G01S7/481 ,  G01C3/08 ,  H01L31/14

CPC分类号： G01S7/4811

摘要： A multiplexer for laser range finders and the like has a plurality of laser transmitters disposed about the periphery thereof. Each of the laser transmitters transmits a beam which is substantially smaller than the return beam received by the laser receiver. The laser receiver and each of the laser transmitters are configured to have a substantially common optical axis such that laser beams transmitted by the laser transmitters substantially overlap at a plane of interest so as to provide enhanced illumination thereby.

摘要翻译： 用于激光测距仪等的多路复用器具有围绕其周边设置的多个激光发射器。 每个激光发射器发射的光束远小于由激光接收器接收的返回光束。 激光接收器和每个激光发射器被配置为具有基本上共同的光轴，使得由激光发射器传输的激光束在感兴趣的平面上基本上重叠，从而提供增强的照明。

公开(公告)号：US08942562B2

公开(公告)日：2015-01-27

申请号：US13149804

申请日：2011-05-31

申请人： Chandrasekhar Pusarla ,  Srinivas Sivaprakasam ,  Joseph Shiran ,  Malcolm Northcott ,  J. Elon Graves ,  Howard Dando ,  Santanu Basu ,  Siegfried Fleischer

发明人： Chandrasekhar Pusarla ,  Srinivas Sivaprakasam ,  Joseph Shiran ,  Malcolm Northcott ,  J. Elon Graves ,  Howard Dando ,  Santanu Basu ,  Siegfried Fleischer

IPC分类号： H04J14/02 ,  H04B10/00 ,  H04J14/00 ,  H04B10/112

CPC分类号： H04B10/112 ,  H04B10/1121

摘要： A stabilized ultra-high bandwidth capacity transceiver system that combines an E-band (71-76 GHz, 81-86 GHz) millimeter wave RF transceiver with an eye-safe adaptive optics Free Space Optical (FSO) transceiver as a combined apparatus for simultaneous point-to-point commercial communications. The apparatus has a high degree of assured carrier availability under stressing environmental conditions. The apparatus establishes and maintains pointing and stabilization of mmW RF and FSO optical beams between adjacent line of sight apparatuses. The apparatus can rapidly acquire and reacquire the FSO optical carrier link in the event the optical carrier link is impaired due to adverse weather.

摘要翻译： 稳定的超高带宽容量收发器系统，将E波段（71-76 GHz，81-86 GHz）毫米波RF收发器与眼睛安全自适应光学自由空间光（FSO）收发器组合在一起，用于同时 点对点商业通信。 该装置在应力环境条件下具有高度的确保载体可用性。 该装置建立并维持相邻视线装置之间的mmW RF和FSO光束的指向和稳定。 如果光载波链路由于恶劣天气而受损，该装置可以快速获取和重新获取FSO光载波链路。

公开(公告)号：US08422524B2

公开(公告)日：2013-04-16

申请号：US12481225

申请日：2009-06-09

申请人： Santanu Basu

发明人： Santanu Basu

IPC分类号： H01S3/14

CPC分类号： H01S3/0604 ,  F28D15/00 ,  F28D19/04 ,  G02F1/3501 ,  H01S3/025 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0608 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/08009 ,  H01S3/08095 ,  H01S3/083 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1055 ,  H01S3/2333 ,  H01S3/2341 ,  H01S3/2383 ,  H01S5/024 ,  H01S5/02423

摘要： There is provided a rotary disk laser module including disk comprised of at least one lasing material. The lasing material may be excited by a laser excitation source, such as an optical pump beam directed onto the disk. The laser gain region contains excited lasing material and extends between the first and second surfaces of the disk. A laser generator is formed when the gain region is brought into optical communication with a laser generator. A laser generator may be a laser oscillator or a laser amplifier. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink. A high-power laser generator may be formed by using a number of disks containing lasing material, exciting the lasing material using at least one laser excitation source, and bringing them into optical communication with a laser generator.

摘要翻译： 提供了包括由至少一个激光材料构成的盘的旋转盘激光器模块。 激光材料可以被诸如被引导到盘上的光泵浦光束的激光激发源激发。 激光增益区域包含激发的激光材料并在盘的第一和第二表面之间延伸。 当增益区域与激光发生器进行光通信时，形成激光发生器。 激光发生器可以是激光振荡器或激光放大器。 为了对激光模块实现各种激光功能，磁盘可以移动。 例如，盘可以旋转，平移或倾斜以旋转增益区域，提供各种量子效应，或者实现与散热器的热传递。 可以通过使用包含激光材料的多个盘来形成大功率激光发生器，使用至少一个激光源激发激光材料，并使它们与激光发生器进行光通信。

公开(公告)号：US20070248137A1

公开(公告)日：2007-10-25

申请号：US11811480

申请日：2007-06-11

申请人： Santanu Basu

发明人： Santanu Basu

IPC分类号： H01S3/06

CPC分类号： H01S3/0604 ,  F28D15/00 ,  F28D19/04 ,  G02F1/3501 ,  H01S3/025 ,  H01S3/042 ,  H01S3/0606 ,  H01S3/0608 ,  H01S3/0612 ,  H01S3/0617 ,  H01S3/0621 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/08009 ,  H01S3/08095 ,  H01S3/083 ,  H01S3/094084 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/1026 ,  H01S3/1055 ,  H01S3/2333 ,  H01S3/2341 ,  H01S3/2383 ,  H01S5/024 ,  H01S5/02423

摘要： There is provided a rotary disk laser module including disk comprised of at least one lasing material. The disk further includes a first surface, a second surface and a gain region. The gain region contains excited lasing material and extends between the first and second surfaces. The lasing material may be excited by a pump beam directed onto the disk. A laser is generated when the gain region is brought into optical communication with a laser generator. The disk may move in order to enable various lasing functionality to the laser module. For instance, the disk may rotate, translate, or tilt to rotate the gain region, provide various quantum effects, or to enable heat transfer with a heat sink.

摘要翻译： 提供了包括由至少一个激光材料构成的盘的旋转盘激光器模块。 盘还包括第一表面，第二表面和增益区域。 增益区域包含激发的激光材料并且在第一和第二表面之间延伸。 激光材料可以被引导到盘上的泵浦光束激发。 当增益区域与激光发生器进行光通信时产生激光。 为了对激光模块实现各种激光功能，磁盘可以移动。 例如，盘可以旋转，平移或倾斜以旋转增益区域，提供各种量子效应，或者实现与散热器的热传递。

公开(公告)号：US07139447B1

公开(公告)日：2006-11-21

申请号：US10126758

申请日：2002-04-19

申请人： Santanu Basu

发明人： Santanu Basu

IPC分类号： H04B10/00

CPC分类号： G02B6/29311 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/14 ,  G02B6/2706 ,  G02B6/29307 ,  G02B6/2931 ,  G02B6/29373 ,  G02B6/34 ,  G02B27/141

摘要： An optical demultiplexer, having an angular dispersion generator followed by an angular amplifier. The angular dispersion generator disperses an incident optical signal into a plurality of channels. While traveling through the angular dispersion amplifier, the channels with incident angles larger than a critical angle are internally totally reflected, and the channels with incident angles smaller than the critical angle are partly reflected, and partly transmitting into an ambient medium. The transmitting part of the channels are thus further dispersed and demultiplexed.

摘要翻译： 一种光解复用器，具有角度色散发生器，随后是角放大器。 角度色散发生器将入射光信号分散到多个通道中。 当通过角度色散放大器行进时，具有大于临界角的入射角的通道在内部被完全反射，并且具有小于临界角的入射角的通道被部分地反射，并且部分地透射到环境介质中。 因此，信道的发送部分被进一步分散和解复用。

公开(公告)号：US5832016A

公开(公告)日：1998-11-03

申请号：US791063

申请日：1997-01-29

申请人： Santanu Basu

发明人： Santanu Basu

IPC分类号： H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/08 ,  H01S3/0941

CPC分类号： H01S3/042 ,  H01S3/025 ,  H01S3/0405 ,  H01S3/0606 ,  H01S3/08072 ,  H01S3/0941

摘要： A heat sink for slab lasers has two heat conductive members. Each heat conductive member has a generally planar surface and is configured such that a solid state laser medium is disposable therebetween while contacting the planar surfaces thereof. There is at least one window formed in at least one of the heat conductive members for facilitating pumping of the solid state laser medium. The two heat conductive members cause heat to be removed from the solid state laser medium in a manner which mitigates thermal focusing and depolarization of laser radiation stimulated within the solid state laser medium.

摘要翻译： 用于平板激光器的散热器具有两个导热构件。 每个导热构件具有大致平坦的表面，并且构造成使得固态激光介质在其间平坦表面接触时是一次性的。 在至少一个导热构件中形成有至少一个窗口，以便于固态激光介质的泵送。 两个导热构件以固体激光介质中激发的激光辐射的热聚焦和去极化的方式使热量从固态激光介质中去除。

公开(公告)号：US20120308235A1

公开(公告)日：2012-12-06

申请号：US13149804

申请日：2011-05-31

申请人： Chandrasekhar Pusarla ,  Srinivas Sivaprakasam ,  Joseph Shiran ,  Malcolm Northcott ,  J. Elon Graves ,  Howard Dando ,  Santanu Basu ,  Siegfried Fleischer

发明人： Chandrasekhar Pusarla ,  Srinivas Sivaprakasam ,  Joseph Shiran ,  Malcolm Northcott ,  J. Elon Graves ,  Howard Dando ,  Santanu Basu ,  Siegfried Fleischer

IPC分类号： H04B10/00 ,  H04J14/02

CPC分类号： H04B10/112 ,  H04B10/1121

摘要： A stabilized ultra-high bandwidth capacity transceiver system that combines an E-band (71-76 GHz, 81-86 GHz) millimeter wave RF transceiver with an eye-safe adaptive optics Free Space Optical (FSO) transceiver as a combined apparatus for simultaneous point-to-point commercial communications. The apparatus has a high degree of assured carrier availability under stressing environmental conditions. The apparatus establishes and maintains pointing and stabilization of mmW RF and FSO optical beams between adjacent line of sight apparatuses. The apparatus can rapidly acquire and reacquire the FSO optical carrier link in the event the optical carrier link is impaired due to adverse weather.

摘要翻译： 稳定的超高带宽容量收发器系统，将E波段（71-76 GHz，81-86 GHz）毫米波RF收发器与眼睛安全自适应光学自由空间光（FSO）收发器组合在一起，用于同时 点对点商业通信。 该装置在应力环境条件下具有高度的确保载体可用性。 该装置建立并维持相邻视线装置之间的mmW RF和FSO光束的指向和稳定。 如果光载波链路由于恶劣天气而受损，该装置可以快速获取和重新获取FSO光载波链路。

公开(公告)号：US5781573A

公开(公告)日：1998-07-14

申请号：US760546

申请日：1996-12-05

申请人： Santanu Basu

发明人： Santanu Basu

IPC分类号： H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/08 ,  H01S3/0941

CPC分类号： H01S3/042 ,  H01S3/0405 ,  H01S3/0602 ,  H01S3/08072 ,  H01S3/09415

摘要： A high power solid state laser has a solid state laser medium with two ends and a longitudinal axis, at least one laser diode configured to end pump the laser medium, a resonator in optical alignment with the laser medium, a transparent and thermally conductive end cap disposed at each end of the laser medium and in thermal communication therewith, and at least one heat sink in thermal communication with the end caps. The end caps and the heat sink(s) cooperate to effect heat flow from the laser medium such that a substantial component of the heat flow is along the longitudinal axis of the laser medium, thus mitigating undesirable transverse temperature gradients within the laser medium and enhancing average power output therefrom.

摘要翻译： 高功率固体激光器具有两端和纵轴的固体激光介质，至少一个激光二极管被配置为端接泵浦激光介质，与激光介质光学对准的谐振器，透明和导热端盖 设置在激光介质的每个端部并与其热连通，以及至少一个与端盖热连通的散热器。 端盖和散热器协作以实现来自激光介质的热流，使得热流的实质部件沿着激光介质的纵向轴线，从而减轻激光介质内的不期望的横向温度梯度并增强 平均功率输出。