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11. 发明授权

US06731427B1 Semiconductor optical amplifier systems 失效
标题翻译：半导体光放大器系统
公开(公告)号：US06731427B1
公开(公告)日：2004-05-04
申请号：US10046236
申请日：2002-01-16
申请人： Yongan Wu
发明人： Yongan Wu
IPC分类号： H01S300
CPC分类号： H01S5/50 , H01S5/0425 , H01S5/5027 , H01S2301/02
摘要： Semiconductor optical amplifier devices and optical amplifiers are provided for handling optical data signals carried on wavelength-division-multiplexing channels in fiber-optic links. The optical amplifiers may have multiple semiconductor optical amplifier devices separated by isolators to reduce backwards scattered light and thereby improve their output power handing capabilities. Waveguide structures on the semiconductor optical amplifier devices may be used to provide lateral light confinement during optical amplification. Nonuniform drive current densities may be used along the lengths of the semiconductor waveguide structures to support increased output powers.
摘要翻译：提供半导体光放大器装置和光放大器用于处理在光纤链路中的波分复用信道上承载的光数据信号。光放大器可以具有由隔离器隔开的多个半导体光放大器装置，以减少反向散射光，从而提高其输出功率处理能力。可以使用半导体光放大器装置上的波导结构来在光放大期间提供横向光限制。沿着半导体波导结构的长度可以使用不均匀的驱动电流密度，以支持增加的输出功率。

12. 发明授权

US06583926B1 Optical amplifiers with age-based pump current limiters 有权
标题翻译：具有年龄泵电流限制器的光放大器
公开(公告)号：US06583926B1
公开(公告)日：2003-06-24
申请号：US09993946
申请日：2001-11-27
申请人： Yongan Wu , Jun Ye
发明人： Yongan Wu , Jun Ye
IPC分类号： H04B1012
CPC分类号： H04B10/2931 , H01S3/094011 , H01S3/09415 , H01S3/1301 , H01S5/0021 , H04B2210/003
摘要： Optical amplifiers and other optical network equipment for handling optical data signals in fiber-optic communications links are provided. Optical fiber that is pumped by laser diode pumps is used to provide optical gain. The laser diode pumps may be based on laser diode devices that do not have temperature controllers and integral back facet monitors. A control unit may be used to keep track of the age of the laser diode pumps. Information on the age of the pumps may be used to determine the maximum allowable drive current for driving the pumps. Information on the age of the pumps may also be used to select an appropriate drive current level during operation of the pumps.
摘要翻译：提供用于处理光纤通信链路中的光数据信号的光放大器和其他光网络设备。激光二极管泵浦的光纤用于提供光学增益。激光二极管泵可以基于没有温度控制器和整体式后面监视器的激光二极管装置。控制单元可用于跟踪激光二极管泵的寿命。关于泵的年龄的信息可以用于确定用于驱动泵的最大允许驱动电流。关于泵的年龄的信息也可用于在泵的运行期间选择适当的驱动电流水平。

13. 发明授权

US06433921B1 Multiwavelength pumps for raman amplifier systems 有权
标题翻译：拉曼放大器系统的多波长泵
公开(公告)号：US06433921B1
公开(公告)日：2002-08-13
申请号：US09783395
申请日：2001-02-15
申请人： Yongan Wu , G. Victor Treyz
发明人： Yongan Wu , G. Victor Treyz
IPC分类号： H01S300
CPC分类号： H01S3/1022 , H01S3/094073 , H01S3/094096 , H01S3/09415 , H01S3/302 , H01S5/141
摘要： Multiwavelength Raman pumps for Raman amplifiers are provided. The multiwavelength Raman pumps may be based on semiconductor devices that have multiple source regions, each of which handles pump light at a different wavelength. An optical coupler such as a lens and isolator arrangement or an integral fiber lens may be used to couple pump light from the multiwavelength Raman pump into a fiber. A depolarizer may be used to depolarize the Raman pump light provided by the Raman pump. Gratings may be used to define the lasing wavelengths for the Raman pump. A number of tunable sources may be used on the semiconductor device. A fiber Bragg grating may be used to form an external cavity or coupled cavity arrangement for the semiconductor device.
摘要翻译：提供拉曼放大器的多波长拉曼泵。多波长拉曼泵可以基于具有多个源极区域的半导体器件，每个源极区域处理不同波长的泵浦光。可以使用诸如透镜和隔离器布置或整体光纤透镜的光耦合器将来自多波长拉曼泵的泵浦光耦合到光纤中。可以使用去极化器去除由拉曼泵提供的拉曼泵浦光。光栅可用于定义拉曼泵的激光波长。可以在半导体器件上使用多个可调谐源。可以使用光纤布拉格光栅来形成用于半导体器件的外部空腔或耦合谐振腔结构。

14. 发明申请

US20070223552A1 High Efficiency, Wavelength Stabilized Laser Diode Using AWG's And Architecture For Combining Same With Brightness Conservation 审中-公开
标题翻译：高效，波长稳定的激光二极管使用AWG和结构相结合的亮度保护
公开(公告)号：US20070223552A1
公开(公告)日：2007-09-27
申请号：US11561132
申请日：2006-11-17
申请人： Martin Muendel , David Dougherty , Matthew Peters , Victor Rossin , Robert Sargent , Len Marabella , Kuochou Tai , Bruno Acklin , Yongan Wu , Kenneth Dzurko
发明人： Martin Muendel , David Dougherty , Matthew Peters , Victor Rossin , Robert Sargent , Len Marabella , Kuochou Tai , Bruno Acklin , Yongan Wu , Kenneth Dzurko
IPC分类号： H01S5/00
CPC分类号： H01S5/148 , G02B6/12004 , G02B6/2813 , H01S5/02284 , H01S5/026 , H01S5/0268 , H01S5/0612 , H01S5/0655 , H01S5/141 , H01S5/146 , H01S5/2036 , H01S5/4012 , H01S5/4062 , H01S5/4087
摘要： The invention relates to high power semiconductor lasers based on a laser diode array waveguide grating (DAWG) in which the wavelength is stabilized using an array waveguide grating (AWG) in an external cavity configuration. Another aspect of the present invention relates to techniques for efficiently coupling optical gain element arrays to an AWG. Another feature provides for the efficient and brightness-conserving combination of multiple high power DAWG lasers into a single output.
摘要翻译：本发明涉及基于激光二极管阵列波导光栅（DAWG）的高功率半导体激光器，其中使用在外部空腔配置中的阵列波导光栅（AWG）使波长稳定。本发明的另一方面涉及用于将光学增益元件阵列有效耦合到AWG的技术。另一个特征提供了将多个高功率DAWG激光器的高效和亮度节省组合成单个输出。

15. 发明授权

US06751013B1 Gain-clamped semiconductor optical amplifiers with adjustable gain levels 失效
标题翻译：增益钳位半导体光放大器，增益可调
公开(公告)号：US06751013B1
公开(公告)日：2004-06-15
申请号：US10270779
申请日：2002-10-10
申请人： Yongan Wu
发明人： Yongan Wu
IPC分类号： H01S300
CPC分类号： H04B10/296 , H01S3/1302 , H04B10/2914
摘要： Gain-clamped semiconductor optical amplifier devices are provided that have adjustable gain levels. Optical amplifiers and other network equipment based on the semiconductor optical amplifier devices are also provided. The devices may include feedback structures that form a lasing cavity. The optical feedback associated with the feedback structures may be adjusted to control the clamped gain of the devices.
摘要翻译：提供了增益钳位的半导体光放大器器件，其具有可调节的增益水平。还提供了基于半导体光放大器装置的光放大器和其他网络设备。这些装置可以包括形成激光腔的反馈结构。可以调整与反馈结构相关联的光反馈以控制器件的钳位增益。

16. 发明授权

US06731424B1 Dynamic gain flattening in an optical communication system 失效
标题翻译：光通信系统中的动态增益平坦化
公开(公告)号：US06731424B1
公开(公告)日：2004-05-04
申请号：US09805930
申请日：2001-03-15
申请人： Yongan Wu
发明人： Yongan Wu
IPC分类号： H01S300
CPC分类号： H04B10/2941 , H01S3/06754 , H01S5/50 , H01S2301/04
摘要： An optical device for dynamic gain adjusting includes a dynamic gain adjusting filter having one or more semiconductor optical amplifiers. The dynamic gain adjusting filter may allow dynamically-adjustable spectral gain characteristics. A dynamic gain adjusting filter may be part of an amplifier module or other optical device module, or as an optical module itself. The dynamic gain adjusting filter may be used to reduce gain ripple, control gain tilt, and/or compensate for other gain variations. The one or more semiconductor optical amplifiers of the dynamic gain adjusting filter may be designed and/or controlled to produce different gain profiles. For example, the active region of the semiconductor optical device may comprise several subregions having different structures, dimensions, and/or doping characteristics.
摘要翻译：用于动态增益调整的光学装置包括具有一个或多个半导体光放大器的动态增益调整滤波器。动态增益调整滤波器可以允许动态可调的频谱增益特性。动态增益调整滤波器可以是放大器模块或其他光学器件模块的一部分，或者作为光学模块本身。动态增益调整滤波器可用于减小增益波动，控制增益倾斜和/或补偿其他增益变化。可以设计和/或控制动态增益调整滤波器的一个或多个半导体光放大器以产生不同的增益曲线。例如，半导体光学器件的有源区可以包括具有不同结构，尺寸和/或掺杂特性的几个子区域。

17. 发明授权

US5850210A Display pointing device provided for correlating display cursor locations to physical locations pointed by the display pointing device 失效
标题翻译：显示指示设备，用于将显示光标位置与显示指示设备指向的物理位置相关联
公开(公告)号：US5850210A
公开(公告)日：1998-12-15
申请号：US720564
申请日：1996-09-30
申请人： Yongan Wu
发明人： Yongan Wu
IPC分类号： G06F3/038 , G09G5/08
CPC分类号： G06F3/0386 , G06F3/03542 , G06F3/03543 , G06F3/03544 , G06F3/038
摘要： The present invention includes computer display pointing device for controlling a display cursor. The computer display pointing device includes a physical location pointer for pointing to physical locations. The computer display pointing device further includes a device for generating physical location signals useful for recording and correlating cursor locations corresponding to physical locations pointed by the physical location pointer. In a preferred embodiment, the physical location pointer is an arrow-shaped pointer for pointing to the physical locations. In yet another preferred embodiment, the physical location pointer is an unfolding-and-folding arrow-shaped pointer whereby the physical location pointer may be unfolded to function in a physical location pointing mode and folded to function in a regular mode for controlling only the display cursor.
摘要翻译：本发明包括用于控制显示光标的计算机显示指示装置。计算机显示指示装置包括用于指向物理位置的物理位置指针。计算机显示指示装置还包括用于生成物理位置信号的装置，该物理位置信号对于记录物理位置指针所指向的物理位置对应于光标位置进行记录和关联。在优选实施例中，物理位置指针是用于指向物理位置的箭头形指针。在另一个优选实施例中，物理位置指针是展开折叠的箭头形指针，由此物理位置指针可以展开以在物理定位指向模式下起作用并且被折叠以在常规模式中起作用以仅控制显示光标。

18. 发明授权

US5539759A Single mode laser with a passive antiguide region 失效
标题翻译：单模激光器具有被动反射区域
公开(公告)号：US5539759A
公开(公告)日：1996-07-23
申请号：US317393
申请日：1994-10-04
申请人： Constance J. Chang-Hasnain , Yongan Wu , Rashit Nabiev
发明人： Constance J. Chang-Hasnain , Yongan Wu , Rashit Nabiev
IPC分类号： H01S5/02 , H01S5/183 , H01S5/20 , H01S3/098
CPC分类号： H01S5/18355 , H01S2301/166 , H01S2301/18 , H01S5/0215 , H01S5/18352 , H01S5/205 , H01S5/222
摘要： A single mode laser with a laser cavity consisting of an active medium and a first and second reflectors with an antiguide region or layer having a high refractive index positioned adjacent to the laser cavity to bleed off higher order lasing modes and preventing them from attaining the lasing condition. Specifically, light belonging to higher order modes leaks or bleeds into the antiguide region from the laser medium and from the first and second reflectors. When spacers for selecting the desired wavelength of laser light are provided, the light travelling through them leaks into the antiguide layer as well.Optimization of the bleeding of higher order modes into the passive antiguide region can be achieved by adjusting a taper angle of the laser cavity. Furthermore, by adjusting the ratio of the equivalent refractive index of the laser cavity and the passive antiguide region single mode operation at high current levels can be realized for apertures as large as 30 .mu.m. In addition, such lasers exhibit a repeatable and predetermined direction of polarization, most commonly along the [011] crystal orientation of the laser medium.
摘要翻译：具有由活性介质和第一和第二反射器组成的激光腔的单模激光器，具有邻近激光腔定位的具有高折射率的防反射区域或层，以排出高阶激光模式并防止其达到激光条件。具体地说，属于高阶模式的光从激光介质和第一反射器和第二反射器泄漏或流入反射区域。当设置用于选择所需波长的激光的间隔物时，穿过它们的光也泄漏到防水层中。可以通过调整激光腔的锥角来实现高阶模式渗透到被动反射区域中的出血优化。此外，通过调整激光腔的等效折射率与被动防止区域单模操作在高电流水平下的比率可以实现为大至30μm的孔。此外，这种激光器表现出可重复和预定的偏振方向，最常见的是沿着激光介质的[011]晶体取向。

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