公开(公告)号：US20170269313A1

公开(公告)日：2017-09-21

申请号：US15073309

申请日：2016-03-17

Applicant: Applied Optoelectronics, Inc.

Inventor： Jianhong LUO ,  Che-Shou YEH ,  I-Lung HO ,  Peng NIE

IPC: G02B6/42 ,  G02B6/32

CPC classification number: G02B6/4244 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4271 ,  G02B6/4274 ,  G02B6/4286

Abstract: A coaxial transmitter optical subassembly (TOSA) including a ball lens may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The coaxial TOSA includes a laser package with a ball lens holder section defining a lens holder cavity that receives the ball lens. The lens holder cavity is dimensioned such that the ball lens is positioned in substantial alignment with the laser diode for optically coupling a laser output from the laser diode into an optical waveguide at an optical coupling end of the TOSA. The coaxial TOSA is thus configured to allow the less expensive ball lens to be used in a relatively small package when a lower coupling efficiency and power is desired and without substantial redesign of the TOSA.

公开(公告)号：US20170269311A1

公开(公告)日：2017-09-21

申请号：US15073342

申请日：2016-03-17

Applicant: Applied Optoelectronics, Inc.

Inventor： Chong WANG ,  Che-shou YEH ,  Jianhong LUO ,  Haohui MAO ,  I-Lung HO

IPC: G02B6/42 ,  G02B6/32 ,  H04J14/02 ,  H04B10/079 ,  H04B10/40 ,  H04B10/50

CPC classification number: G02B6/4208 ,  G02B6/32 ,  G02B6/4204 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4286 ,  H04B10/0795 ,  H04B10/40 ,  H04B10/503 ,  H04J14/02

Abstract: A coaxial transmitter optical subassembly (TOSA) with optical isolator alignment correction may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The coaxial TOSA includes an optical fiber coupling receptacle extending from a laser package. The laser package may include a laser diode and a lens to focus laser light emitted from the laser diode onto an optical fiber. The laser diode and lens are aligned along a first longitudinal axis of the laser package parallel to a transmission path of the laser light. An optical isolator located in the transmission path is aligned along a second longitudinal axis of the laser package. The second longitudinal axis is coincident with a centerline of the laser package, and the first longitudinal axis is offset from the second longitudinal axis by a predetermined offset distance to compensate for light shifting characteristics of the isolator.

公开(公告)号：US09762028B2

公开(公告)日：2017-09-12

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: H01S5/0625 ,  H01S5/062 ,  H01S5/024

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.

公开(公告)号：US09614620B2

公开(公告)日：2017-04-04

申请号：US14720336

申请日：2015-05-22

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Chong Wang ,  Justin Lii ,  Zhengyu Miao

IPC: G02B6/42 ,  H04B10/40 ,  G02B6/43 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/40 ,  G02B6/4292 ,  G02B6/43 ,  H04B10/506 ,  H04J14/0246 ,  H04J14/025

Abstract: A coaxial transmitter optical subassembly (TOSA) including a cuboid type TO laser package may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. The cuboid type TO laser package is made of a thermally conductive material and has substantially flat outer surfaces that may be thermally coupled to substantially flat outer surfaces on a transceiver housing and/or on other cuboid type TO laser packages. An optical transceiver may include multiple coaxial TOSAs with the cuboid type TO laser packages stacked in the transceiver housing. The cuboid type TO laser package may thus provide improved thermal characteristics and a reduced size within the optical transceiver.

公开(公告)号：US20170075080A1

公开(公告)日：2017-03-16

申请号：US15362796

申请日：2016-11-28

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung HO ,  Luohan PENG ,  Joyce LI

IPC: G02B6/42 ,  H04J14/02 ,  G02B6/12 ,  H04B10/66

CPC classification number: G02B6/4224 ,  G02B6/12019 ,  G02B6/4292 ,  G02B6/4295 ,  H04B10/66 ,  H04J14/0246 ,  H04J14/025

Abstract: A multi-channel receiver optical subassembly (ROSA) such as an arrayed waveguide grating (AWG), with outputs directly optically coupled to respective photodetectors such as photodiodes. In one embodiment, an AWG may be configured such that optical components of the AWG do not interfere with direct optical coupling, and the wire bonding points on the photodiodes may also be configured such that wire bonding does not interfere with direct optical coupling. The photodetectors may also be mounted on a photodetector mounting bar with a pitch sufficiently spaced to allow connection to floating grounds. A passive alignment technique may be used to determine the mounting locations on the photodetector mounting bar such that the photodetectors are aligned with the optical outputs.

Abstract translation: 诸如阵列波导光栅（AWG）的多通道接收器光学子组件（ROSA），其具有直接光耦合到诸如光电二极管的各个光电探测器的输出。 在一个实施例中，AWG可以被配置成使得AWG的光学部件不干扰直接光耦合，并且光电二极管上的引线接合点也可以被配置成使得引线接合不会干扰直接的光耦合。 光电检测器还可以安装在具有足够间隔的间距的光电检测器安装杆上，以允许连接到浮动接地。 可以使用无源对准技术来确定光电检测器安装杆上的安装位置，使得光电检测器与光输出对准。

公开(公告)号：US20170040774A1

公开(公告)日：2017-02-09

申请号：US15333557

申请日：2016-10-25

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun ZHENG ,  Stefan J. MURRY

IPC: H01S5/14 ,  H01S5/125 ,  H04B10/572 ,  H04B10/25 ,  H04J14/02 ,  H04B10/50

CPC classification number: H01S5/146 ,  H01S5/125 ,  H04B10/25 ,  H04B10/503 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

Abstract: An extended cavity Fabry-Perot laser assembly provides relatively narrow mode spacing while allowing relatively high speed optical modulation. The extended cavity Fabry-Perot laser assembly generally includes an exit reflector physically separated from a laser emitter (e.g., a gain chip) to extend the lasing cavity and narrow the mode spacing while maintaining a relatively small gain region in the laser emitter capable of higher speed optical modulation. The extended cavity Fabry-Perot laser assembly may be used in a multi-channel transmitter in a wavelength division multiplexed (WDM) optical system that selects a channel wavelength for the transmitter from among multiple channel wavelengths emitted by the laser assembly. The narrow mode spacing may be less than a WDM channel width, and more specifically, may be less than a channel passband of an arrayed waveguide grating (AWG) or other filter used to select the channel wavelength.

Abstract translation: 扩展腔法布里 - 珀罗激光器组件提供相对窄的模式间隔，同时允许相对高速的光学调制。 扩展腔法布里 - 珀罗激光器组件通常包括与激光发射器（例如，增益芯片）物理分离的出射反射器，以延伸激光腔并且缩小模式间隔，同时保持激光发射器中能够较高的相对小的增益区域 速度光调制。 扩展腔法布里 - 珀罗激光器组件可以用在波分复用（WDM）光学系统中的多通道发射机中，该系统从由激光组件发射的多个信道波长中选择用于发射机的信道波长。 窄模式间隔可以小于WDM沟道宽度，更具体地，可以小于用于选择沟道波长的阵列波导光栅（AWG）或其他滤波器的通道通带。

公开(公告)号：US09531155B2

公开(公告)日：2016-12-27

申请号：US14248553

申请日：2014-04-09

Applicant: Applied Optoelectronics, Inc.

Inventor： Yi Wang ,  Jun Zheng ,  Yanyan Zhang

IPC: H04B10/00 ,  H01S5/062 ,  H01S5/068 ,  H01S5/024 ,  H04B10/50 ,  H04J14/02

CPC classification number: H01S5/062 ,  H01S5/024 ,  H01S5/02415 ,  H01S5/0428 ,  H01S5/0612 ,  H01S5/06253 ,  H01S5/06804 ,  H01S5/06817 ,  H01S5/4087 ,  H04B10/503 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/0256 ,  H04J14/0282

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. A switch module may be configured to couple a signal from a laser driver to a selected one of the plurality of in-line laser sections, wherein the signal modulates the laser light generated by the in-line laser section. The selected in-line section may be DC biased to a lasing state and the non-selected in-line sections may be DC biased to a non-lasing or transparent state.

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。 开关模块可以被配置为将来自激光驱动器的信号耦合到多个在线激光器部分中的所选择的一个，其中该信号调制由在线激光器部分产生的激光。 所选择的在线部分可以被直流偏置到激光状态，并且未选择的在线部分可以被DC偏置到非激光或透明状态。

公开(公告)号：US09523826B2

公开(公告)日：2016-12-20

申请号：US14504500

申请日：2014-10-02

Applicant: Applied Optoelectronics, Inc.

Inventor： Chao-Hung Tsai ,  Chien-Te Lin ,  Che-Shou Yeh

IPC: G02B6/42

CPC classification number: G02B6/423 ,  G02B6/4246 ,  G02B6/4261 ,  G02B6/4284 ,  G02B6/4292

Abstract: A pluggable optical transceiver module for inserted into plugging slot includes main body and sliding component. The main body has opposite two side surfaces and two sliding slots. The two sliding slots are located at the two side surfaces. The sliding component includes linkage arm and two extending arms. The two extending arms are connected to the linkage arm. Each extending arm has a second fastening part. The main body is between the two extending arms. The two extending arms are disposed on the two sliding slots to have fastening position and releasing position. Two first fastening parts are fastened to the two second fastening parts when the two extending arms are located at fastening position. The two second fastening parts press the two first fastening parts, respectively, for the two first fastening parts being farther from each other when the two extending arms are located at releasing position.

Abstract translation: 用于插入插槽的可插拔光收发器模块包括主体和滑动部件。 主体具有相对的两个侧面和两个滑动槽。 两个滑动槽位于两个侧面。 滑动部件包括连杆臂和两个延伸臂。 两个延伸臂连接到连接臂。 每个延伸臂具有第二紧固部分。 主体位于两个延伸臂之间。 两个延伸臂设置在两个滑动槽上以具有紧固位置和释放位置。 当两个延伸臂位于紧固位置时，两个第一紧固部件被紧固到两个第二紧固部件。 当两个延伸臂位于释放位置时，两个第二紧固部分别按压两个第一紧固部分，使得两个第一紧固部分彼此更远。

公开(公告)号：US09479259B2

公开(公告)日：2016-10-25

申请号：US14528011

申请日：2014-10-30

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Stefan J. Murry ,  Jun Zheng

IPC: H04B10/40 ,  H04J14/02 ,  H04B10/50 ,  G02B6/42 ,  G02B6/12

CPC classification number: H04B10/40 ,  G02B6/12033 ,  G02B6/4215 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0278

Abstract: A multi-channel optical transceiver includes a transmitter optical subassembly (TOSA) with a thermal arrayed waveguide grating (AWG) for multiplexing optical signals and a receiver optical subassembly (ROSA) with an athermal AWG for demultiplexing optical signals. The TOSA may also include a laser array optically coupled to the thermal AWG and a temperature control system thermally coupled to the laser array and the thermal AWG to control temperature for wavelength tuning. The temperature control system in the TOSA may include a thermoelectric cooler (TEC) that cools both the laser array and the thermal AWG. Because the athermal AWG in the ROSA is temperature independent, the ROSA does not include a TEC, thereby reducing power consumption and conserving space. The optical transceiver may be used in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

Abstract translation: 多通道光收发器包括具有用于多路复用光信号的热阵列波导光栅（AWG）的发射器光子组件（TOSA）和具有用于解复用光信号的无热AWG的接收器光子组件（ROSA）。 TOSA还可以包括光学耦合到热AWG的激光器阵列和与激光器阵列热耦合的温度控制系统和热AWG以控制用于波长调谐的温度。 TOSA中的温度控制系统可以包括冷却激光阵列和热AWG的热电冷却器（TEC）。 由于ROSA中的无热AWG与温度无关，因此ROSA不包括TEC，从而降低功耗并节省空间。 光收发器可以用在波分复用（WDM）光学系统中，例如在WDM无源光网络（PON）中的光线路终端（OLT）中。

公开(公告)号：US20160291267A1

公开(公告)日：2016-10-06

申请号：US14672802

申请日：2015-03-30

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  I-Lung Ho ,  Yi Wang

IPC: G02B6/42 ,  G02B6/293

CPC classification number: G02B6/4212 ,  G02B6/12019 ,  G02B6/29304 ,  G02B6/2938 ,  G02B6/425 ,  G02B6/4274

Abstract: A system is provided for improved coupling of photodetectors to optical demultiplexer outputs, for example an arrayed waveguide grating (AWG), using a refractive index matched material. In one embodiment, the system may include an optical demultiplexer including multiple optical outputs corresponding to multiple signal channels and a photodetector array including a plurality of photodiodes aligned with the multiple optical outputs. The system may also include an epoxy disposed within a gap between each of the photodiodes and each of the corresponding optical outputs of the optical demultiplexer. The epoxy may be configured to provide an index of refraction that is matched to the optical demultiplexer.

Abstract translation: 提供了一种用于改进光电探测器与光解复用器输出（例如使用折射率匹配材料的阵列波导光栅（AWG））耦合的系统。 在一个实施例中，系统可以包括光解复用器，其包括对应于多个信号通道的多个光输出和包括与多个光输出对准的多个光电二极管的光电检测器阵列。 该系统还可以包括设置在每个光电二极管之间的间隙中的环氧树脂和光解复用器的每个对应的光输出。 环氧树脂可以被配置为提供与光解复用器匹配的折射率。