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    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS
    1.
    发明申请
    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS 审中-公开
    具有多个在线部分的可激光激光

    公开(公告)号：US20150357791A1

    公开(公告)日：2015-12-10

    申请号：US13916652

    申请日：2013-06-13

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Yi Wang ,  I-Lung Ho ,  Huanlin Zhang ,  Dion McIntosh-Dorsey

    IPC: H01S5/06 ,  H01S5/062 ,  H04B10/572 ,  H01S5/028 ,  H04J14/02 ,  H01S5/40 ,  H01S5/00

    CPC classification number: H01S5/0612 ,  H01S5/005 ,  H01S5/0287 ,  H01S5/06246 ,  H01S5/06258 ,  H01S5/1215 ,  H01S5/1246 ,  H01S5/4031 ,  H01S5/4087 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0245

    Abstract: A tunable laser with multiple in-line sections generally includes a semiconductor laser body with a plurality of in-line laser sections each configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. The wavelength of the light generated in each of the laser sections may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. The laser light generated in each selected one of the laser sections is emitted from a front facet of the laser body. By selectively generating light in one or more of the laser sections, one or more channel wavelengths may be selected for lasing and transmission. The tunable laser with multiple in-line sections may be used, for example, in a tunable transmitter in an optical networking unit (ONU) in a WDM passive optical network (PON) to select a transmission channel wavelength.

    Abstract translation: 具有多个在线部分的可调激光器通常包括具有多个在线激光部分的半导体激光器体，每个激光器部分被配置为独立地被驱动以产生在不同的相应波长范围内的波长的激光。 在每个激光部分中产生的光的波长可以响应于温度变化被调谐到相应波长范围内的通道波长。 在每个选择的一个激光部分中产生的激光从激光体的前刻面发射。 通过选择性地在一个或多个激光部分中产生光，可以选择一个或多个信道波长用于激光和透射。 具有多个在线部分的可调激光器可以用于例如WDM无源光网络（PON）中的光网络单元（ONU）中的可调谐发射机中，以选择传输信道波长。

    MONITORING A MULTIPLEXED LASER ARRAY IN AN OPTICAL COMMUNICATION SYSTEM
    3.
    发明申请
    MONITORING A MULTIPLEXED LASER ARRAY IN AN OPTICAL COMMUNICATION SYSTEM 有权
    在光通信系统中监视多路复用激光阵列

    公开(公告)号：US20160043799A1

    公开(公告)日：2016-02-11

    申请号：US14456124

    申请日：2014-08-11

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Yi Wang ,  I-Lung Ho ,  Klaus Alexander Anselm ,  Huanlin Zhang

    IPC: H04B10/079 ,  H04B10/50 ,  H04J14/02 ,  H04B10/40 ,  H01S5/40 ,  H01S5/0683

    CPC classification number: H04B10/07955 ,  H01S5/0268 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/4025 ,  H01S5/4087 ,  H04B10/40 ,  H04B10/503 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0282

    Abstract: Individual channels of a multiplexed laser array in a multi-channel optical transmitter are monitored at an output of an optical multiplexer. The monitoring may be used to confirm proper operation of each of the channels in the multiplexed laser array and/or to perform wavelength locking on each of the channels. Monitoring at the output of the optical multiplexer avoids the use of multiple photodetectors coupled directly to multiple lasers in the multiplexed laser array. The multiplexed laser array generally includes a plurality of laser emitters optically coupled to an optical multiplexer such as an arrayed waveguide grating (AWG). An optical transmitter with a monitored multiplexed laser array may be used, for example, in an optical line terminal (OLT) in a wavelength division multiplexed (WDM) passive optical network (PON) or in any other type of WDM optical communication system capable of transmitting optical signals on multiple channel wavelengths.

    Abstract translation: 在多路复用器的输出端监视多通道光发射机中多路复用激光阵列的各个通道。 监视可用于确认多路复用激光器阵列中每个通道的正确操作和/或在每个通道上执行波长锁定。 在光学复用器的输出处的监控避免了使用多个激光器阵列中直接耦合到多个激光器的光电探测器。 复用的激光器阵列通常包括光学耦合到诸如阵列波导光栅（AWG）的光复用器的多个激光发射器。 具有受监控的多路复用激光器阵列的光发射机可以用于例如在波分多路复用（WDM）无源光网络（PON）中的光线路终端（OLT）中，或者可以使用任何其他类型的WDM光通信系统， 在多个信道波长上传输光信号。

    TWO-SECTION SEMICONDUCTOR LASER WITH MODULATION-INDEPENDENT GRATING SECTION TO REDUCE CHIRP
    4.
    发明申请
    TWO-SECTION SEMICONDUCTOR LASER WITH MODULATION-INDEPENDENT GRATING SECTION TO REDUCE CHIRP 有权
    具有调制独立光泽度的两部分半导体激光器，以减少CHIRP

    公开(公告)号：US20160197678A1

    公开(公告)日：2016-07-07

    申请号：US14590456

    申请日：2015-01-06

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Stefan Murry ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Dion McIntosh-Dorsey

    IPC: H04B10/50 ,  H01S5/062

    CPC classification number: H01S5/06256 ,  H01S5/02415 ,  H01S5/06226

    Abstract: A two-section semiconductor laser includes a gain section and a modulation-independent grating section to reduce chirp. The modulation-independent grating section includes a diffraction grating for reflecting light and forms a laser cavity with the gain section for lasing at a wavelength or range of wavelengths reflected by the diffraction grating. The gain section of the semiconductor laser includes a gain electrode for driving the gain section with at least a modulated RF signal and the grating section includes a grating electrode for driving the grating section with a DC bias current independent of the modulation of the gain section. The semiconductor laser may thus be directly modulated with the modulated RF signal without the modulation significantly affecting the index of refraction in the diffraction grating, thereby reducing chirp.

    Abstract translation: 两部分半导体激光器包括增益部分和调制无关光栅部分，以减少啁啾。 调制非依赖光栅部分包括用于反射光的衍射光栅，并且在激光的增益部分处形成激光腔，该增益部分在由衍射光栅反射的波长或波长范围内进行激光。 半导体激光器的增益部分包括用于以至少调制的RF信号驱动增益部分的增益电极，并且光栅部分包括用于以独立于增益部分的调制的DC偏置电流来驱动光栅部分的光栅电极。 因此，半导体激光器可以用调制的RF信号直接调制，而不会使调制显着影响衍射光栅中的折射率，从而减少啁啾。

    LASER TRANSCEIVER WITH IMPROVED BIT ERROR RATE
    5.
    发明申请
    LASER TRANSCEIVER WITH IMPROVED BIT ERROR RATE 有权
    具有改进的位错误率的激光收发器

    公开(公告)号：US20150372763A1

    公开(公告)日：2015-12-24

    申请号：US14312930

    申请日：2014-06-24

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Yi Wang ,  Huanlin Zhang

    IPC: H04B10/58 ,  H04B10/40 ,  H04J14/02 ,  H04B10/50

    CPC classification number: H04B10/58 ,  H04B10/40 ,  H04B10/504

    Abstract: An optical transceiver generally includes an injection locked (IL) laser configured to generate a transmit (Tx) optical signal for transmission over an optical network and a laser driver circuit configured to modulate the IL laser based on a Tx data signal. The Tx data signal may be provided to the optical transceiver for transmission over the optical network. The Tx data signal may include a crossing point level associated with a transition between a first signal level and a second signal level. The optical transceiver may also include a crossing point control circuit configured to apply distortion to the Tx data signal, the distortion to increase the crossing point level.

    Abstract translation: 光收发器通常包括被配置为产生用于通过光网络传输的发射（Tx）光信号的注入锁定（IL）激光器和被配置为基于Tx数据信号来调制IL激光器的激光器驱动器电路。 Tx数据信号可以被提供给光收发器以在光网络上传输。 Tx数据信号可以包括与第一信号电平和第二信号电平之间的转变相关联的交叉点电平。 光收发器还可以包括交叉点控制电路，其被配置为向Tx数据信号施加失真，该失真增加了交叉点电平。

    Monitoring a multiplexed laser array in an optical communication system
    6.
    发明授权
    Monitoring a multiplexed laser array in an optical communication system 有权
    监控光通信系统中的复用激光阵列

    公开(公告)号：US09455782B2

    公开(公告)日：2016-09-27

    申请号：US14456124

    申请日：2014-08-11

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Yi Wang ,  I-Lung Ho ,  Klaus Alexander Anselm ,  Huanlin Zhang

    IPC: H04B10/04 ,  H04B10/079 ,  H01S5/40 ,  H01S5/0683 ,  H04J14/02 ,  H04B10/40 ,  H04B10/50

    CPC classification number: H04B10/07955 ,  H01S5/0268 ,  H01S5/0683 ,  H01S5/0687 ,  H01S5/4025 ,  H01S5/4087 ,  H04B10/40 ,  H04B10/503 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0282

    Abstract: Individual channels of a multiplexed laser array in a multi-channel optical transmitter are monitored at an output of an optical multiplexer. The monitoring may be used to confirm proper operation of each of the channels in the multiplexed laser array and/or to perform wavelength locking on each of the channels. Monitoring at the output of the optical multiplexer avoids the use of multiple photodetectors coupled directly to multiple lasers in the multiplexed laser array. The multiplexed laser array generally includes a plurality of laser emitters optically coupled to an optical multiplexer such as an arrayed waveguide grating (AWG). An optical transmitter with a monitored multiplexed laser array may be used, for example, in an optical line terminal (OLT) in a wavelength division multiplexed (WDM) passive optical network (PON) or in any other type of WDM optical communication system capable of transmitting optical signals on multiple channel wavelengths.

    Abstract translation: 在多路复用器的输出端监视多通道光发射机中多路复用激光阵列的各个通道。 监视可用于确认多路复用激光器阵列中每个通道的正确操作和/或在每个通道上执行波长锁定。 在光学复用器的输出处的监控避免了使用多个激光器阵列中直接耦合到多个激光器的光电探测器。 复用的激光器阵列通常包括光学耦合到诸如阵列波导光栅（AWG）的光复用器的多个激光发射器。 具有受监控的多路复用激光器阵列的光发射机可以用于例如在波分多路复用（WDM）无源光网络（PON）中的光线路终端（OLT）中，或者可以使用任何其他类型的WDM光通信系统， 在多个信道波长上传输光信号。

    SEMICONDUCTOR LASER DIODE WITH INTEGRATED HEATING REGION
    7.
    发明申请
    SEMICONDUCTOR LASER DIODE WITH INTEGRATED HEATING REGION 有权
    具有集成加热区域的半导体激光二极管

    公开(公告)号：US20160094013A1

    公开(公告)日：2016-03-31

    申请号：US14501751

    申请日：2014-09-30

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Hung-Lun Chang

    IPC: H01S5/024 ,  H01S5/042 ,  H01S5/20 ,  H04B10/50 ,  H01S5/12 ,  H01S5/40 ,  G02B6/12 ,  H01S5/026 ,  H01S5/10

    CPC classification number: H01S5/02453 ,  G02B6/12 ,  G02B6/12014 ,  G02B2006/12164 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/02461 ,  H01S5/0261 ,  H01S5/0268 ,  H01S5/0287 ,  H01S5/0612 ,  H01S5/22 ,  H01S5/4087 ,  H01S2301/176 ,  H04B10/40 ,  H04J14/0282

    Abstract: A semiconductor laser diode with integrated heating generally includes a lasing region and a heating region integrated into the same semiconductor structure or chip. The lasing region and the heating region include first and second portions, respectively, of the semiconductor layers forming the semiconductor structure and include first and second portions, respectively, of the active regions formed by the semiconductor layers. Separate laser and heater electrodes are electrically connected to the respective lasing and heating regions for driving the respective lasing and heating regions with drive currents. The heating region may thus be driven independently from the lasing region, and heat may be conducted through the semiconductor layers from the heating region to the lasing region allowing the temperature to be controlled more efficiently.

    Abstract translation: 具有集成加热的半导体激光二极管通常包括激光区域和集成在同一半导体结构或芯片中的加热区域。 激光区域和加热区域分别包括形成半导体结构的半导体层的第一和第二部分，并且分别包括由半导体层形成的有源区的第一和第二部分。 单独的激光和加热器电极电连接到相应的激光和加热区域，以用驱动电流驱动相应的激光和加热区域。 因此，加热区域可以独立于激光区域被驱动，并且热可以通过半导体层从加热区域传导到激光区域，从而能够更有效地控制温度。

    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS INCLUDING SAMPLED GRATINGS
    8.
    发明申请
    TUNABLE LASER WITH MULTIPLE IN-LINE SECTIONS INCLUDING SAMPLED GRATINGS 有权
    具有多个在线部分的可激光激光器，包括采样光栅

    公开(公告)号：US20150078751A1

    公开(公告)日：2015-03-19

    申请号：US14551353

    申请日：2014-11-24

    Applicant: Applied Optoelectronics, Inc.

    Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Dion McIntosh-Dorsey

    IPC: H04B10/50 ,  H04J14/02 ,  H04B10/27 ,  H01S5/06

    CPC classification number: H01S5/1209 ,  H01S5/02415 ,  H01S5/0612 ,  H01S5/06258 ,  H01S5/1092 ,  H01S5/4087

    Abstract: A tunable laser with multiple in-line sections including sampled gratings generally includes a semiconductor laser body with a plurality of in-line laser sections configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. Sampled gratings in the respective in-line sections have the same grating period and a different sampling period to produce the different wavelengths. The wavelength of the light generated in the respective laser sections may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. By selectively generating light in one or more of the laser sections, one or more channel wavelengths may be selected for lasing and transmission. By using sampled gratings with the same grating period in the multiple in-line sections, the multiple section tunable laser may be fabricated more easily.

    Abstract translation: 具有包括采样光栅的多个在线部分的可调激光器通常包括半导体激光器主体，其具有被配置为独立驱动的多个在线激光部分，以产生波长在不同的相应波长范围内的激光。 相应的在线部分中的采样光栅具有相同的光栅周期和不同的采样周期以产生不同的波长。 在相应的激光部分中产生的光的波长可以响应于温度变化被调谐到相应波长范围内的通道波长。 通过选择性地在一个或多个激光部分中产生光，可以选择一个或多个信道波长用于激光和透射。 通过在多个在线部分中使用具有相同光栅周期的采样光栅，可以更容易地制造多段可调谐激光器。

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