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41.发明授权Methods for robust channel switching of widely-tunable sampled-grating distributed bragg reflector lasers 有权广泛采样光栅分布式布拉格反射激光器的鲁棒通道切换方法公开(公告)号：US06868100B2
公开(公告)日：2005-03-15
申请号：US10310393
申请日：2002-12-04
IPC分类号： H01S5/06 , H01S5/0625 , H01S5/0687 , H01S5/12 , H01S3/10
CPC分类号： H01S5/06256 , H01S5/0617 , H01S5/0687 , H01S5/1209
摘要： The present invention describes methods and apparatus for reliably assuring that correct mirror currents are selected during a channel switch to achieve the desired wavelength channel, based on feedback from either internal or external means combined with a mode map obtained at a time zero calibration.
摘要翻译： 本发明描述了用于可靠地确保在信道切换期间选择正确镜像电流以实现所需波长信道的方法和装置，其基于来自内部或外部装置的组合与在时间零点校准时获得的模式映射的反馈。
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公开(公告)号：US06574398B2
公开(公告)日：2003-06-03
申请号：US09738162
申请日：2000-12-14
申请人： Larry A. Coldren , Syn-Yem Hu
发明人： Larry A. Coldren , Syn-Yem Hu
IPC分类号： G02B630
CPC分类号： G02B6/4202 , G02B6/4239 , G02B6/4246 , G02B6/4249 , H01S5/02284 , H01S5/18358 , H01S5/4087 , H01S5/423
摘要： A low cost, high speed WDM optical link which employs a circular array of VCSEL emitters directly coupled to a multi-mode fiber through which multiple simultaneously optical transmissions are sent to an optical detector comprising a circular array of RCPD detectors receiving the multiple simultaneous transmissions. The emitters and detectors within each array are fabricated with a double-absorber design which avoids position sensitivity related to the cavity standing wave and eliminates the need for in-situ cavity-mode adjustment. In addition, a coupled-cavity structure is presented to achieve passbands with flat tops and steep sides to approach the ideal square-shape photoresponse and to ensure proper channel alignment.
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公开(公告)号：US5877038A
公开(公告)日：1999-03-02
申请号：US758241
申请日：1996-11-27
CPC分类号： H01S5/18316 , H01S5/18341 , H01S5/18369 , H01S5/1838 , H01S5/2086
摘要： A highly controllable, compact method for making a vertical cavity laser. By using selective etching and contact layers within the laser cavity, higher efficiencies and lower power requirements for vertical cavity surface emitting lasers (VCSELs) are achieved.
摘要翻译： 用于制造垂直腔体激光器的高度可控，紧凑的方法。 通过在激光腔内使用选择性蚀刻和接触层，实现了垂直腔面发射激光器（VCSEL）的更高的效率和更低的功率要求。
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公开(公告)号：US4764246A
公开(公告)日：1988-08-16
申请号：US87550
申请日：1987-08-20
IPC分类号： G02B6/13 , H01L21/20 , H01S5/20 , H01S5/22 , H01S5/223 , H01S5/227 , H01S5/24 , H01L21/306 , B44C1/22 , C03C15/00 , C03C25/06
CPC分类号： G02B6/131 , H01S5/24 , H01S5/2081 , H01S5/22 , H01S5/2237 , H01S5/2275
摘要： Epitaxial regrowth by vapor phase epitaxy of controlled composition semiconductor material in and around undercut regions of a processed heterostructure wafer permits formation of a ridge waveguide capable of active or passive operation. Subsequent material selective and crystallographically preferential etching is employed to form mirror facets on each end of the ridge waveguide.
摘要翻译： 通过处理的异质结构晶片的底切区域内和周围的受控组合物半导体材料的气相外延的外延再生可以形成能够进行主动或被动操作的脊形波导。 采用随后的材料选择性和晶体学优先蚀刻，以在脊波导的每一端形成镜面。
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公开(公告)号：US4608697A
公开(公告)日：1986-08-26
申请号：US504829
申请日：1983-06-16
申请人： Larry A. Coldren
发明人： Larry A. Coldren
CPC分类号： H01S5/50 , H01S5/026 , H01S5/0264 , H01S5/0687 , H01S5/1021
摘要： Control circuits stabilize and maintain coupled-cavity lasers in a single longitudinal mode. The laser is electrically connected and mutually and optically coupled to a control means responsive to a light output signal from the laser for controlling the laser by generating a control signal to the laser to produce single longitudinal mode output. The single mode output is maintained even during high speed modulation in which the current or ambient conditions vary.
摘要翻译： 控制电路在单一纵向模式下稳定和维持耦合腔激光器。 激光器电连接并且相互和光耦合到控制装置，响应于来自激光器的光输出信号来控制激光器，通过向激光器产生控制信号以产生单个纵模输出。 甚至在电流或环境条件变化的高速调制期间也保持单模输出。
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公开(公告)号：US4471005A
公开(公告)日：1984-09-11
申请号：US460544
申请日：1983-01-24
申请人： Chu-Liang Cheng , Larry A. Coldren
发明人： Chu-Liang Cheng , Larry A. Coldren
IPC分类号： H01L21/285 , H01L21/283
CPC分类号： H01L21/28575
摘要： A plurality of pairs of layers comprising gold and zinc are successively evaporated onto a p-type Group III-V semiconductor material such as indium phosphide. A final layer of gold is evaporated onto the pairs of layers prior to heating the multilayer contact. Successive layers of chromium and gold may be evaporated onto the final gold layer prior to the annealing step.
摘要翻译： 包含金和锌的多对层依次蒸发到p型III-V族半导体材料如磷化铟。 在加热多层接触之前，最后一层金被蒸发到成对的层上。 在退火步骤之前，铬和金的连续层可以蒸发到最终的金层上。
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公开(公告)号：US4439268A
公开(公告)日：1984-03-27
申请号：US529286
申请日：1983-09-06
CPC分类号： H01L21/02027 , H01L21/02019 , H01L21/30617 , H01L29/06 , Y10S438/973
摘要： A method for determining crystallographic orientation of an InP substrate wafer includes the steps of immersing at least a portion of the substrate wafer in a chemical etchant for a predetermined amount of time to expose features having a predetermined shape and designating a particular crystallographic direction on the substrate wafer in accordance with relative positions of features on the portion of the substrate wafer.
摘要翻译： 用于确定InP衬底晶片的晶体取向的方法包括以下步骤：将衬底晶片的至少一部分浸入化学蚀刻剂中预定的时间量，以暴露具有预定形状的特征并指定衬底上的特定结晶方向 根据基板晶片的部分上的特征的相对位置来晶片。
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公开(公告)号：US4166987A
公开(公告)日：1979-09-04
申请号：US877838
申请日：1978-02-15
申请人： Larry A. Coldren
发明人： Larry A. Coldren
CPC分类号： H03H9/02905 , H03H9/643
摘要： The fingers of a multistrip coupler for surface acoustic waves are weighted in at least one, i.e., input or output, track so as to match a predetermined energy profile for that track. In one embodiment, the weighting is achieved by apodizing the fingers of the multistrip coupler. In another embodiment, each finger is formed in a variable-amplitude zig-zag pattern. The invention is particularly advantageous when used to transversely couple surface acoustic wave resonators.
摘要翻译： 用于表面声波的多段耦合器的指状物在至少一个，即输入或输出轨道中加权，以便匹配该轨道的预定能量曲线。 在一个实施例中，通过对多段耦合器的指状物进行变迹来实现加权。 在另一个实施例中，每个手指形成为可变幅度Z字形图案。 当用于横向耦合表面声波谐振器时，本发明是特别有利的。
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