利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

57 条记录 (耗时 0.068 秒)

    Thermally wavelength tunable laser having selectively activated gratings
    12.
    发明授权
    Thermally wavelength tunable laser having selectively activated gratings 有权
    具有选择性激活光栅的热能波长可调激光器

    公开(公告)号：US06782164B1

    公开(公告)日：2004-08-24

    申请号：US10062956

    申请日：2002-01-31

    申请人： Shing Lee ,  David A. G. Deacon

    发明人： Shing Lee ,  David A. G. Deacon

    IPC分类号： G02B634

    CPC分类号： H01S3/1055 ,  G02B6/124 ,  G02F1/0147 ,  G02F2201/305

    摘要： A thermally wavelength tunable laser includes a core, the core including more than one diffraction grating, and thermo-optical material adjacent to each diffraction grating. By selectively changing the temperature and hence the refractive index in the thermo-optical material adjacent to a chosen diffraction grating, the chosen diffraction grating can be tuned over a selected wavelength range. By selecting different diffraction gratings, different, non-overlapping wavelength ranges can be selected and the laser can be tuned over a broad range of wavelengths.

    摘要翻译： 热波长可调激光器包括芯，芯包括多于一个衍射光栅，以及与每个衍射光栅相邻的热光材料。 通过选择性地改变与所选择的衍射光栅相邻的热光材料的温度和因此的折射率，所选择的衍射光栅可以在选定的波长范围内调谐。 通过选择不同的衍射光栅，可以选择不同的非重叠波长范围，并且可以在宽范围的波长上调谐激光。

    Thermally wavelength tunable lasers
    13.
    发明授权
    Thermally wavelength tunable lasers 有权
    热波长可调激光器

    公开(公告)号：US06690694B2

    公开(公告)日：2004-02-10

    申请号：US10005991

    申请日：2001-11-08

    申请人： David A. G. Deacon

    发明人： David A. G. Deacon

    IPC分类号： H01S500

    CPC分类号： H01S5/141 ,  H01S5/0224 ,  H01S5/02248 ,  H01S5/02272 ,  H01S5/0612 ,  H01S5/101 ,  H01S5/1085 ,  H01S5/1206

    摘要： Embodiments of wavelength tunable lasers are disclosed. The wavelength tunable lasers include thermo-optic organic material that has an index of refraction that can quickly vary in response to changes in temperature. By controlling the temperature in the thermo-optic organic material through the use of heaters or coolers, the wavelength tunable lasers and the integrated optical components can be quickly and selectively tuned over a broad range of wavelengths with high spectral selectivity.

    摘要翻译： 公开了波长可调激光器的实施例。 波长可调激光器包括热光有机材料，其具有可以响应于温度变化而快速变化的折射率。 通过使用加热器或冷却器来控制热光有机材料中的温度，波长可调谐激光器和集成光学部件可以在具有高光谱选择性的宽波长范围内快速和有选择地调谐。

    Laser with electrically-controlled grating reflector
    14.
    再颁专利
    Laser with electrically-controlled grating reflector 失效
    激光与电控光栅反射器

    公开(公告)号：USRE37809E1

    公开(公告)日：2002-07-30

    申请号：US09053422

    申请日：1998-04-01

    申请人： David A. G. Deacon ,  Simon J. Field ,  Michael J. Brinkman ,  William K. Bischel

    发明人： David A. G. Deacon ,  Simon J. Field ,  Michael J. Brinkman ,  William K. Bischel

    IPC分类号： H01S308

    CPC分类号： H01S3/063 ,  G02F2201/30 ,  G02F2201/307 ,  H01S3/0092 ,  H01S3/0635 ,  H01S3/1055 ,  H01S3/108 ,  H01S3/109 ,  H01S5/141 ,  H01S5/4062

    摘要： One or more lasers are combined with optical energy transfer devices and energy guiding devices which use an electric field for control. The optical energy transfer devices may form gratings, mirrors, lenses and the like using a class of poled structures in solid material. The poled structures may be combined with waveguide structures. Electric fields applied to the poled structures control routing, reflection and refraction of optical energy. Adjustable tunability is obtained by a poled structure which produces a spatial gradient in a variable index of refraction along an axis in the presence of a variable electric field.

    摘要翻译： 一个或多个激光器与使用电场进行控制的光能传递装置和能量引导装置组合。 光能转移装置可以使用固体材料中的一类极化结构形成光栅，反射镜，透镜等。 极化结构可以与波导结构组合。 施加到极化结构的电场控制光能的路由，反射和折射。 可调节的可调性通过极化结构获得，该极化结构在存在可变电场的情况下沿轴产生可变折射率的空间梯度。

    Channel-switched tunable laser for DWDM communications
    15.
    发明授权
    Channel-switched tunable laser for DWDM communications 失效
    用于DWDM通信的信道切换可调谐激光器

    公开(公告)号：US06324204B1

    公开(公告)日：2001-11-27

    申请号：US09421866

    申请日：1999-10-19

    申请人： David A. G. Deacon

    发明人： David A. G. Deacon

    IPC分类号： H01S308

    CPC分类号： H01S5/141 ,  G02B6/12007 ,  G02B6/1228 ,  G02B6/136 ,  G02B6/4202 ,  G02B6/4212 ,  G02B2006/12097 ,  G02B2006/12107 ,  G02B2006/12109 ,  G02B2006/12119 ,  G02B2006/12164 ,  G02F1/0147 ,  G02F1/065 ,  G02F1/1326 ,  G02F2201/307 ,  G02F2202/022 ,  H01S5/0612 ,  H01S5/0622 ,  H01S5/50

    摘要： Laser source including materials with negative index of refraction dependence on temperature and with temperature independent coincidence between cavity modes and a set of specified frequencies such as DWDM channels in telecommunications applications. The free spectral range may be adjusted to equal a rational fraction of the specified frequency interval. The operating frequency may be defined by a frequency selective feedback element that is thermo-optically tuned by the application of heat from an actuator without substantially tuning the cavity modes. The operating frequency may be induced to hop digitally between the specified frequencies. In a particular embodiment, semiconductor amplifier and polymer waveguide segments form a linear resonator with a thermo-optically tuned grating reflector. In a further embodiment, an amplifier and two waveguides from a tunable grating assisted coupler form a ring resonator. Tuning may also be accomplished by means of applying an electric field across a liquid crystal portion of the waveguide structure within the grating.

    摘要翻译： 激光源包括负折射率依赖于温度的材料，以及腔模式之间的温度独立重合，以及电信应用中的一组指定频率，例如DWDM通道。 可以将自由光谱范围调整为等于指定频率间隔的有理分数。 工作频率可以由频率选择反馈元件限定，该频率选择反馈元件通过施加来自致动器的热而不进行基本上调谐腔模的热光学调谐。 可以在指定的频率之间数字地诱导工作频率跳变。 在特定实施例中，半导体放大器和聚合物波导段形成具有热光调谐光栅反射器的线性谐振器。 在另一实施例中，来自可调谐光栅辅助耦合器的放大器和两个波导形成环形谐振器。 调谐也可以通过在光栅内的波导结构的液晶部分上施加电场来实现。

    Controllable beam director using poled structure
    16.
    发明授权
    Controllable beam director using poled structure 失效
    可控光束导体使用极化结构

    公开(公告)号：US5732177A

    公开(公告)日：1998-03-24

    申请号：US748480

    申请日：1996-11-08

    申请人： David A. G. Deacon ,  Michael J. Brinkman ,  William K. Bischel ,  Simon J. Field

    发明人： David A. G. Deacon ,  Michael J. Brinkman ,  William K. Bischel ,  Simon J. Field

    IPC分类号： G01J3/12 ,  G02B6/12 ,  G02F1/01 ,  G02F1/03 ,  G02F1/035 ,  G02F1/313 ,  G02F1/37 ,  G02B6/10

    CPC分类号： G02F1/011 ,  G02F1/035 ,  G02F1/313 ,  G02F1/03 ,  G02F1/3132 ,  G02F1/3137 ,  G02F2201/30 ,  G02F2201/307

    摘要： A new class of energy interaction devices, particularly optical energy transfer devices and energy guiding devices, use an energy field, particularly an electric field, applied to a poled structure to control energy propagation in a solid material. The poled structures, which may form gratings in thin film or bulk configurations, may be combined with waveguide structures to guide energy beams such as optical or acoustic beams. Electric fields applied to the poled structures, such as electrically-activated gratings, control routing of optical energy. Optical devices include but are not limited to, frequency-selective switchable- and adjustably-tunable reflectors, splitters, directional couplers, frequency-tunable switches and efficient beam combiners, as well as polarized beam combiners, am and fm modulators, mode selectors, energy transfer devices, optical data readers, panel display devices, and waveguide/reflector switching arrays. Variable reflectivity in a grating and adjustable tunability is obtained by a poled structure under the influence of an adjustable field, producing a spatial gradient in an adjustable propagation velocity in the solid material.

    摘要翻译： 一类新的能量相互作用装置，特别是光能转移装置和能量引导装置，使用施加到极化结构的能量场，特别是电场来控制固体材料中的能量传播。 可以形成薄膜或体积构造的光栅的极化结构可以与波导结构组合以引导诸如光学或声波束的能量束。 施加到极化结构的电场，例如电激活光栅，控制光能的路由。 光学器件包括但不限于频率选择性可切换和可调谐可调谐的反射器，分离器，定向耦合器，频率可调开关和有效的光束组合器，以及偏振光束组合器，am和fm调制器，模式选择器，能量 传输设备，光学数据读取器，面板显示设备和波导/反射器开关阵列。 光栅中的可变反射率和可调节的可调性通过极化结构在可调节场的影响下获得，从而产生固体材料中可调传播速度的空间梯度。

    Optical source with mode reshaping
    19.
    发明授权
    Optical source with mode reshaping 失效
    光源与模式整形

    公开(公告)号：US5513196A

    公开(公告)日：1996-04-30

    申请号：US389706

    申请日：1995-02-14

    申请人： William K. Bischel ,  David A. G. Deacon ,  Michael J. Brinkman

    发明人： William K. Bischel ,  David A. G. Deacon ,  Michael J. Brinkman

    IPC分类号： G02F1/37 ,  H01S3/00 ,  H01S3/109 ,  H01S5/00 ,  H01S5/026 ,  H01S5/14 ,  H01S5/20 ,  H01S5/40 ,  H01S3/10

    CPC分类号： H01S5/141 ,  G02F1/37 ,  H01S2301/14 ,  H01S3/005 ,  H01S3/109 ,  H01S5/005 ,  H01S5/026 ,  H01S5/20 ,  H01S5/4062 ,  H01S5/4087

    摘要： A laser cavity configuration employs a mode reshaping structure in a solid state waveguide. The mode reshaping may be by means of an adiabatic taper. Polarization switching may be employed in connection with the mode reshaping to obtain a high output power in a single transverse spatial mode from an integrated external cavity multiple-mode diode laser device. The structure provides stabilization and rapid tuning of the frequency of the diode laser, as well as use substantially all of the available power of the diode laser operating multimode. Various configurations and combinations are described. An advantage is that an integrated structure can provide output of the laser in a waveguide with single mode for subsequent applications. The external cavity diode laser according to the invention is consistent with a planar manufacturing process such that high volume, low cost products can be achieved.

    摘要翻译： 激光腔配置在固态波导中采用模式整形结构。 模式整形可以通过绝热锥度。 可以结合模式整形来采用极化切换，以从集成的外腔多模二极管激光器装置在单个横向空间模式中获得高输出功率。 该结构提供二极管激光器的频率的稳定和快速调谐，以及使用二极管激光器操作多模式的基本上所有的可用功率。 描述各种配置和组合。 一个优点是集成结构可以在波导中提供激光器的输出，其具有用于随后应用的单个模式。 根据本发明的外腔二极管激光器与平面制造工艺一致，使得可以实现高容量，低成本的产品。

    Free electron laser
    20.
    发明授权
    Free electron laser 失效
    自由电子激光

    公开(公告)号：US4740973A

    公开(公告)日：1988-04-26

    申请号：US736494

    申请日：1985-05-21

    申请人： John M. J. Madey ,  David A. G. Deacon ,  Michel Velghe ,  Michel Billardon ,  Yves Petroff ,  Jean-Michel Ortega ,  Pascal Elleaume ,  Claude Bazin ,  Maurice Bergher

    发明人： John M. J. Madey ,  David A. G. Deacon ,  Michel Velghe ,  Michel Billardon ,  Yves Petroff ,  Jean-Michel Ortega ,  Pascal Elleaume ,  Claude Bazin ,  Maurice Bergher

    IPC分类号： H01S3/09 ,  H01S3/00

    CPC分类号： H01S3/0903

    摘要： The invention envisages control devices acting on the laser to vary in time the electron/photon interaction, means proceeding to a State I in which they alter the optimal conditions for laser amplification; and a State II in which that reestablish said optimal conditions, which control devices permit the improvement of the peak amplitude and stability of the laser pulses and the rate and stability of the pulse period. According to another aspect of this invention, the two states are alternated, preferably periodically or almost periodically. The duration of State I should be selected by comparison with the characteristics of the electron packet and, in particular of the relaxation time observed for said packet. If the duration of State II is set to a value to be comparable to or longer than the electron relaxation time, the peak amplitude of the laser pulses is increased. The duration of State II should be selected by comparison with the natural macropulse width. If the duration of the State II is set to a value shorter than the natural duration of the laser macropulses, the repetition rate of the laser pulses can be increased.

    摘要翻译： 本发明设想作用在激光器上的控制装置在时间上改变电子/光子相互作用，意味着进行到它们改变激光放大的最佳条件的状态I; 以及重新建立最佳条件的状态II，其中控制装置允许提高激光脉冲的峰值振幅和稳定性以及脉冲周期的速率和稳定性。 根据本发明的另一方面，两个状态是交替的，优选地周期性地或几乎周期性地。 应通过与电子分组的特性进行比较来选择状态I的持续时间，特别是对于所述分组观察到的弛豫时间。 如果将状态II的持续时间设定为与电子弛豫时间相当或更长的值，则激光脉冲的峰值振幅增加。 通过与自然宏观脉冲宽度的比较来选择状态二的持续时间。 如果将状态II的持续时间设定为比激光大尺寸的自然持续时间短的值，则可以增加激光脉冲的重复率。