公开(公告)号：US09768585B2

公开(公告)日：2017-09-19

申请号：US14661772

申请日：2015-03-18

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Stefan Murry ,  Klaus Alexander Anselm

IPC: H01S5/06 ,  H01S3/10 ,  H01S3/08 ,  H01S5/0625 ,  H01S5/0687 ,  H01S5/028 ,  H01S5/024 ,  H01S5/40 ,  H01S5/12

CPC classification number: H01S5/06256 ,  H01S5/02415 ,  H01S5/0287 ,  H01S5/06258 ,  H01S5/0687 ,  H01S5/124 ,  H01S5/4012 ,  H01S5/4087

Abstract: A parallel cavity tunable laser generally includes a semiconductor laser body defining a plurality of parallel laser cavities with a common output. Each of the parallel laser cavities is 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 cavities 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 cavities is emitted from the common output at a front facet of the laser body. By selectively generating light in one or more of the laser cavities, one or more channel wavelengths may be selected for lasing and transmission.

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。

公开(公告)号：US20160197453A1

公开(公告)日：2016-07-07

申请号：US14588608

申请日：2015-01-02

Applicant: Applied Optoelectronics, Inc.

Inventor： Guipeng Luo ,  Klaus Alexander Anselm ,  Hung-Lun Chang

IPC: H01S5/00 ,  G01M11/00

CPC classification number: H01S5/0014 ,  G01J1/0411 ,  G01J1/0451 ,  G01J1/4257

Abstract: A dual testing system and method is used to perform both optical power and wavelength measurements on laser light emitted from a laser diode, such as a chip-on-submount (COS) laser diode or a laser diode in a bar laser. A testing fixture may be used to facilitate both measurements by simultaneously detecting the light for performing a first test including the optical power measurement(s) and reflecting the light for performing a second test including the wavelength measurement(s). The testing fixture may include an angled photodetector and an optical coupling system such as a collimating lens, a focal lens and an optical waveguide. The testing fixture may be electrically connected to an optical power testing module, such as a light-current-voltage (LIV) testing module, for performing the optical power measurement(s) and may be optically coupled to a wavelength measurement module, such as an optical spectrum analyzer (OSA) for performing the wavelength measurement(s).

Abstract translation: 双重测试系统和方法用于对激光二极管发射的激光进行光功率和波长测量，如激光二极管芯片（COS）激光二极管或激光二极管。 可以使用测试夹具来同时检测用于执行包括光功率测量的第一测试的光并反射用于进行包括波长测量的第二测试的光的测量。 测试夹具可以包括成角度的光电检测器和诸如准直透镜，聚焦透镜和光波导之类的光耦合系统。 测试夹具可以电连接到诸如光电压（LIV）测试模块的光功率测试模块，用于执行光功率测量，并且可以光学耦合到波长测量模块，例如 用于执行波长测量的光谱分析仪（OSA）。

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。

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。