公开(公告)号：US07773652B2

公开(公告)日：2010-08-10

申请号：US11475136

申请日：2006-06-27

Applicant: Kazuhisa Takagi ,  Keisuke Matsumoto

Inventor： Kazuhisa Takagi ,  Keisuke Matsumoto

IPC: H01S5/00

CPC classification number: H01S5/1228

Abstract: In a gain-coupled distributed feedback semiconductor laser, a coating of a low reflectivity is provided on a front facet from which laser light is emitted and a coating of a high reflectivity is provided on a rear facet, thus forming asymmetric coatings. The semiconductor laser has a structure in which an absorption diffraction grating is located along an optical waveguide, and the diffraction grating includes a phase shift region.

Abstract translation: 在增益耦合分布式反馈半导体激光器中，在发射激光的前刻面上提供低反射率的涂层，并且在后面提供高反射率的涂层，从而形成不对称涂层。 半导体激光器具有其中吸收衍射光栅沿着光波导定位的结构，并且衍射光栅包括相移区域。

公开(公告)号：US07646797B1

公开(公告)日：2010-01-12

申请号：US12178028

申请日：2008-07-23

Applicant: Robert C. Hoffman

Inventor： Robert C. Hoffman

IPC: H01S5/00

CPC classification number: H01S5/1228 ,  H01S5/0654 ,  H01S5/1234 ,  H01S5/168 ,  H01S5/32316 ,  H01S2301/173

Abstract: Current channels, blocking areas, or strips in a semiconductor laser are used to channel injected current into the antinodal region of the optical standing wave present in the optical cavity, while restricting the current flow to the nodal regions. Previous devices injected current into both the nodal and antinodal regions of the wave, which is fed by the population inversion created in the active region by the injected electrons and holes, but inversion created in the nodal regions is lost to fluorescence or supports the creation of undesirable competing longitudinal modes, causing inefficiency. Directing current to the antinodal regions where the electric field is at its maximum causes a selected longitudinal mode to preferentially oscillate regardless of where the longitudinal mode lies with respect to the gain curve. In one embodiment, exacting fabrication of the Fabry-Perot cavity correlates the current channels to antinodal regions, vis-a vis current blocking areas, strips or segmented layers.

Abstract translation: 半导体激光器中的电流通道，阻挡区域或条带用于将注入的电流引导到存在于光学腔中的光驻波的抗结块区域，同时限制电流到节点区域。 以前的装置将电流注入到波的节点和抗结点区域中，该区域由被注入的电子和空穴在有源区域中产生的群体反转馈送，但是在节点区域中产生的反转会失去荧光或支持产生 不良竞争的纵向模式，导致效率低下。 将电流引导到电场处于其最大值的抗结区，导致所选择的纵向模式优先振荡，而不管纵向模式相对于增益曲线位于何处。 在一个实施例中，法布里 - 珀罗腔的严格制造使得当前通道与抗结块区域相对于电流阻挡区域，条带或分段层相关。

公开(公告)号：US07634195B2

公开(公告)日：2009-12-15

申请号：US11938761

申请日：2007-11-12

Applicant: Jagdeep Singh ,  Drew Perkins ,  David F. Welch ,  Mark Yin ,  Fred A. Kish, Jr. ,  Stephen G. Grubb ,  Robert R. Taylor ,  Vincent G. Dominic ,  Matthew L. Mitchell ,  James R. Dodd, Jr.

Inventor： Jagdeep Singh ,  Drew Perkins ,  David F. Welch ,  Mark Yin ,  Fred A. Kish, Jr. ,  Stephen G. Grubb ,  Robert R. Taylor ,  Vincent G. Dominic ,  Matthew L. Mitchell ,  James R. Dodd, Jr.

IPC: H04J14/02

CPC classification number: G02B6/12011 ,  B82Y20/00 ,  G01R31/31728 ,  G01R31/318511 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12019 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02B6/131 ,  G02B6/136 ,  G02B6/4204 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  G02F2203/69 ,  H01L31/125 ,  H01S5/0014 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/06832 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/3408 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/2914 ,  H04B10/50 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0258 ,  H04J14/0265 ,  H04J14/0276 ,  H04J14/0282

Abstract: A digital optical network (DON) is a new approach to low-cost, more compact optical transmitter modules and optical receiver modules for deployment in optical transport networks (OTNs). One important aspect of a digital optical network is the incorporation in these modules of transmitter photonic integrated circuit (TxPIC) chips and receiver photonic integrated circuit (TxPIC) chips in lieu of discrete modulated sources and detector sources with discrete multiplexers or demultiplexers.

Abstract translation: 数字光网络（DON）是用于部署在光传输网络（OTN）中的低成本，更紧凑的光发射机模块和光接收机模块的新方法。 数字光网络的一个重要方面是将发射机光子集成电路（TxPIC）芯片和接收机光子集成电路（TxPIC）芯片的这些模块并入，以代替具有分立多路复用器或解复用器的离散调制源和检测器源。

公开(公告)号：US07551815B2

公开(公告)日：2009-06-23

申请号：US11463587

申请日：2006-08-09

Applicant: David F. Welch ,  Ting-Kuang Chiang ,  Vincent G. Dominic ,  Fred A. Kish, Jr. ,  Radhakrishnan L. Nagarajan

Inventor： David F. Welch ,  Ting-Kuang Chiang ,  Vincent G. Dominic ,  Fred A. Kish, Jr. ,  Radhakrishnan L. Nagarajan

IPC: G02B6/28 ,  G02B6/34 ,  H04B10/00

CPC classification number: H04B10/2914 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12011 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/1203 ,  G02B6/12033 ,  G02B6/4249 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/026 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/183 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/3404 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H01S5/5072 ,  H04B10/25 ,  H04B10/50 ,  H04B10/675 ,  H04J14/02

Abstract: A method is disclosed for monitoring and controlling the bit error rate (BER) in an optical communication network where an optical receiver in the optical transmission network. The method includes the steps of decombining a combined channel signal received from the network and then monitoring a real time bit error rate (BER) of a decombined channel signal. The determined BER is then communicated, such as through an optical service channel (OSC) to an optical transmitter source that is the source of origin of the channel signal. Based upon the determined BER, the chirp of a channel signal modulator at the optical transmitter source that generated the monitored channel signal is adjusted by, for example, adjusting its bias. The same channel signal received at the optical receiver can be monitored again to determine if an acceptable level for the BER has been achieved by the previous chirp adjustment.

Abstract translation: 公开了一种用于监视和控制在光传输网络中的光接收机的光通信网络中的误码率（BER）的方法。 该方法包括以下步骤：将从网络接收的组合信道信号分解，然后监视解复用信道信号的实时误码率（BER）。 所确定的BER然后例如通过光学服务信道（OSC）传送到作为信道信号的源的源的光发射机源。 基于确定的BER，通过例如调整其偏置来调整产生监视的信道信号的光发射机源处的信道信号调制器的啁啾。 可以再次监视在光接收机处接收到的相同信道信号，以确定是否通过先前的啁啾调整实现了BER的可接受电平。

公开(公告)号：US07471857B2

公开(公告)日：2008-12-30

申请号：US11693680

申请日：2007-03-29

Applicant: Fred A. Kish, Jr. ,  Charles H. Joyner ,  David F. Welch ,  Robert B. Taylor ,  Alan C. Nilsson

Inventor： Fred A. Kish, Jr. ,  Charles H. Joyner ,  David F. Welch ,  Robert B. Taylor ,  Alan C. Nilsson

IPC: G02B6/12

CPC classification number: G02B6/12033 ,  B82Y20/00 ,  G02B6/02204 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12019 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/124 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  H01S5/0085 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/02453 ,  H01S5/02461 ,  H01S5/02476 ,  H01S5/026 ,  H01S5/0261 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/0425 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/2214 ,  H01S5/2224 ,  H01S5/227 ,  H01S5/2272 ,  H01S5/2275 ,  H01S5/3408 ,  H01S5/34306 ,  H01S5/4025 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/2914 ,  H04B10/50 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02

Abstract: An optical transmitter comprises a monolithic transmitter photonic integrated circuit (TxPIC) chip that includes an array of modulated sources formed on the PIC chip and having different operating wavelengths approximating a standardized wavelength grid and providing signal outputs of different wavelengths. A wavelength selective combiner is formed on the PIC chip having a wavelength grid passband response approximating the wavelength grid of the standardized wavelength grid. The signal outputs of the modulated sources optically coupled to inputs of the wavelength selective combiner to produce a combined signal output from the combiner. A first wavelength tuning element coupled to each of the modulated sources and a second wavelength tuning element coupled to the wavelength selective combiner. A wavelength monitoring unit is coupled to the wavelength selective combiner to sample the combined signal output. A wavelength control system coupled to the first and second wavelength tuning elements and to said wavelength monitoring unit to receive the sampled combined signal output. The wavelength control system adjusts the respective wavelengths of operation of the modulated sources to approximate or to be chirped to the standardized wavelength grid and for adjusting the optical combiner wavelength grid passband response to approximate the standardized wavelength grid.

Abstract translation: 光发射机包括单片发射机光子集成电路（TxPIC）芯片，其包括形成在PIC芯片上的调制源的阵列，并且具有接近标准化波长网格并提供不同波长的信号输出的不同工作波长。 在具有近似于标准化波长网格的波长网格的波长网格通带响应的PIC芯片上形成波长选择性组合器。 调制源的信号输出光耦合到波长选择组合器的输入，以产生从组合器输出的组合信号。 耦合到每个调制源的第一波长调谐元件和耦合到波长选择组合器的第二波长调谐元件。 波长监测单元耦合到波长选择组合器以对组合的信号输出进行采样。 波长控制系统耦合到第一和第二波长调谐元件以及所述波长监视单元以接收采样的组合信号输出。 波长控制系统调整调制源的各个波长的波长近似于或被啁啾到标准化波长网格，并且用于调整光合并波长网格通带响应以近似标准化的波长网格。

公开(公告)号：US07463661B2

公开(公告)日：2008-12-09

申请号：US10505770

申请日：2003-02-24

Applicant: Mutsuo Ogura

Inventor： Mutsuo Ogura

IPC: H01S5/00

CPC classification number: H01S5/341 ,  B82Y10/00 ,  B82Y20/00 ,  H01L21/02392 ,  H01L21/02395 ,  H01L21/0243 ,  H01L21/02433 ,  H01L21/02546 ,  H01L21/0259 ,  H01L21/02636 ,  H01L29/127 ,  H01S5/0265 ,  H01S5/1053 ,  H01S5/1206 ,  H01S5/1228 ,  H01S5/1237 ,  H01S5/22 ,  H01S5/3412 ,  H01S5/4031

Abstract: On a grooved semiconductor substrate having a plurality of V-grooves individually extended in directions perpendicular to a direction Is of advance of an oscillated laser beam and mutually disposed in parallel along the direction Is of advance of the laser beam, a plurality of quantum wires (11) are formed on the V-grooves by selective growth of a Group III-V compound. The plurality of quantum wires are adapted to serve as limited-length active layer regions mutually disposed in parallel along the direction Is of advance of the laser beam with a period of an integer times of a quarter wavelength in a medium of a laser active layer and individually corresponding to stripe widths of laser. Consequently, a quantum nano-structure semiconductor laser satisfying at least one, or preferably both, of the decrease of a threshold and the stabilization of an oscillation frequency as compared with a conventional countertype can be provided.

Abstract translation: 在具有多个V形槽的槽形半导体衬底上，多个V形槽在垂直于振荡的激光束的前进方向Is的方向上分别延伸并且沿着激光束的前进方向Is并行地相互设置，多个量子线 11）通过III-V族化合物的选择性生长形成在V形槽上。 多个量子线适合用作在激光有源层的介质中沿着激光束的前进方向的平均相互配置的具有四分之一波长整数倍的周期的有限长度的有源层区域，以及 分别对应于激光的条纹宽度。 因此，可以提供与传统的逆型相比，满足阈值的降低和振荡频率的稳定化中的至少一个，或优选两者的量子纳米结构半导体激光器。

公开(公告)号：US07457341B2

公开(公告)日：2008-11-25

申请号：US11360752

申请日：2006-02-23

Applicant: Matthew Glenn Peters ,  Hanmin Zhao

Inventor： Matthew Glenn Peters ,  Hanmin Zhao

IPC: H01S3/08

CPC classification number: H01S5/12 ,  H01S3/094069 ,  H01S5/1039 ,  H01S5/1203 ,  H01S5/1228 ,  H01S2302/00

Abstract: A low optical loss and high efficiency grating is placed within a broad-area high-power laser diode or single spatial mode laser diode to narrow the spectral width and stabilize the emission wavelength. Several embodiments of grating configurations are presented, together with the measured results of a reduction to practice of a particular embodiment.

Abstract translation: 低光损耗和高效率光栅被放置在广域大功率激光二极管或单空间模式激光二极管中，以窄化光谱宽度并稳定发射波长。 呈现了光栅配置的几个实施例，以及减少到特定实施例的实践的测量结果。

公开(公告)号：US20080225918A1

公开(公告)日：2008-09-18

申请号：US11686082

申请日：2007-03-14

Applicant: Martin Achtenhagen ,  Gary Alan Evans ,  Nuditha Vibhavie Amarasinghe ,  Taha Masood ,  Jerome K. Butler

Inventor： Martin Achtenhagen ,  Gary Alan Evans ,  Nuditha Vibhavie Amarasinghe ,  Taha Masood ,  Jerome K. Butler

IPC: H01S5/026

CPC classification number: H01S5/12 ,  H01S5/06256 ,  H01S5/1215 ,  H01S5/1221 ,  H01S5/1228 ,  H01S5/1237 ,  H01S5/125 ,  H01S5/187 ,  H01S5/22

Abstract: A system and a method of manufacture for a semiconductor laser with a continuous waveguide ridge extending the length of the laser. The continuous waveguide ridge is positioned through the center of the optical components of the semiconductor laser. The optical components including the waveguide ridge may be distributed Bragg reflectors (DBRs), outcoupling gratings, and phase controllers. The illustrated embodiments include lateral-grating grating-stabilized edge-emitting lasers and lateral-grating grating-stabilized surface-emitting (GSE) lasers. Both loss-coupled and non-loss-coupled lateral-grating components are illustrated.

Abstract translation: 一种用于半导体激光器的系统和方法，其具有延伸激光器长度的连续波导脊。 连续的波导脊通过半导体激光器的光学部件的中心定位。 包括波导脊的光学部件可以是分布式布拉格反射器（DBR），外耦合光栅和相位控制器。 所示实施例包括横向光栅光栅稳定的边缘发射激光器和横向光栅光栅稳定的表面发射（GSE）激光器。 示出了损耗耦合和非损耗耦合横向光栅部件。

公开(公告)号：US07295783B2

公开(公告)日：2007-11-13

申请号：US10267212

申请日：2002-10-08

Applicant: Jagdeep Singh ,  Drew D. Perkins ,  David F. Welch ,  Mark Yin ,  Fred A. Kish, Jr. ,  Stephen G. Grubb ,  Robert R. Taylor ,  Vincent G. Dominic ,  Matthew L. Mitchell ,  James R. Dodd, Jr.

Inventor： Jagdeep Singh ,  Drew D. Perkins ,  David F. Welch ,  Mark Yin ,  Fred A. Kish, Jr. ,  Stephen G. Grubb ,  Robert R. Taylor ,  Vincent G. Dominic ,  Matthew L. Mitchell ,  James R. Dodd, Jr.

IPC: H04J14/02 ,  H04B10/00 ,  H04B10/02

CPC classification number: G02B6/12011 ,  B82Y20/00 ,  G01R31/31728 ,  G01R31/318511 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/12019 ,  G02B6/12021 ,  G02B6/12023 ,  G02B6/12026 ,  G02B6/12028 ,  G02B6/12033 ,  G02B6/131 ,  G02B6/136 ,  G02B6/4204 ,  G02F1/01725 ,  G02F2001/0175 ,  G02F2001/01758 ,  G02F2203/69 ,  H01L31/125 ,  H01S5/0014 ,  H01S5/0085 ,  H01S5/02248 ,  H01S5/026 ,  H01S5/0262 ,  H01S5/0264 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/06256 ,  H01S5/06258 ,  H01S5/0683 ,  H01S5/06832 ,  H01S5/12 ,  H01S5/1228 ,  H01S5/2077 ,  H01S5/22 ,  H01S5/3408 ,  H01S5/4031 ,  H01S5/4087 ,  H01S5/50 ,  H04B10/2914 ,  H04B10/50 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0258 ,  H04J14/0265 ,  H04J14/0276 ,  H04J14/0282

Abstract: A digital optical network (DON) is a new approach to low-cost, more compact optical transmitter modules and optical receiver modules for deployment in optical transport networks (OTNs). One important aspect of a digital optical network is the incorporation in these modules of transmitter photonic integrated circuit (TxPIC) chips and receiver photonic integrated circuit (RxPIC) chips in lieu of discrete modulated sources and detector sources with discrete multiplexers or demultiplexers.

Abstract translation: 数字光网络（DON）是用于部署在光传输网络（OTN）中的低成本，更紧凑的光发射机模块和光接收机模块的新方法。 数字光网络的一个重要方面是将发射器光子集成电路（TxPIC）芯片和接收器光子集成电路（RxPIC）芯片的这些模块并入，以代替具有分立多路复用器或解复用器的离散调制源和检测器源。

公开(公告)号：US07277465B2

公开(公告)日：2007-10-02

申请号：US10642611

申请日：2003-08-19

Applicant: Toshitaka Aoyagi ,  Satoshi Shirai

Inventor： Toshitaka Aoyagi ,  Satoshi Shirai

IPC: H01S3/08

CPC classification number: H01S5/1228 ,  H01S5/0654 ,  H01S5/12 ,  H01S5/1225 ,  H01S5/124 ,  H01S5/1246

Abstract: In a refractive index coupling distributed semiconductor laser having a Λ/2-phase-shift distributed feedback structure with a diffraction grating having a refractive index coupling property on an active layer, when viewed in a light distributed feedback direction, a value of (duty of a high refractive index portion)/(duty of a low refractive index portion) of a diffraction grating in a rear end face region is larger than that of a diffraction grating in a front end face region. In this manner, a coupling coefficient κ2 in a front end face region of a conventional semiconductor laser is smaller than a coupling coefficient κ1 in a rear end face region and is larger than 100 cm−1.

Abstract translation: 在具有λ/ 2相移分布反馈结构的折射率耦合分布式半导体激光器中，在有源层上具有折射率耦合特性的衍射光栅，当在光分布反馈方向上观察时， 衍射光栅在后端面区域的高折射率部分/（低折射率部分的占空比）大于前端面区域中的衍射光栅的高折射率部分）。 以这种方式，常规半导体激光器的前端面区域中的耦合系数kappa2小于后端面区域中的耦合系数kappa1，并且大于100cm -1。