公开(公告)号：US10247892B2

公开(公告)日：2019-04-02

申请号：US15242017

申请日：2016-08-19

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  Hsiu-Che Wang ,  I-Lung Ho

IPC: G02B6/255 ,  G02B6/42

Abstract: A transceiver module having a partitioned housing, e.g., a bifurcated or multi-segment housing, is disclosed that allows coupling and alignment of a TOSA arrangement and ROSA arrangement in separate respective portions in order to minimize or otherwise reduce component damage and rework iterations during manufacturing and repair. Technicians may thus perform at least partial assembly and testing of each optical subassembly arrangement in parallel and in relative isolation without necessarily interrupting and/or waiting on completion of the other. In a general sense, each separate portion of the partitioned housing provides a dedicated workspace of about equal dimension for coupling of subassembly components. Each separate portion may lie flat on a tabletop, for instance, which may further simplify manufacturing processes and provide a wide-range of acceptance angles for performing soldering, welding, insertion and coupling of components, visual inspection, fiber routing, and so on.

公开(公告)号：US10180545B2

公开(公告)日：2019-01-15

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 ,  H04B10/40 ,  H04B10/50 ,  H04B10/079

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：US10044441B2

公开(公告)日：2018-08-07

申请号：US15295189

申请日：2016-10-17

Applicant: Applied Optoelectronics, Inc.

Inventor： Michael Jones ,  Rafael Celedon

IPC: H04B10/2575 ,  H04B10/564 ,  H04B17/00

Abstract: Energy reduction in a CATV network device, such as an optical node, in a CATV network may be accomplished using a system and method for controlling an amplifier in response to channel loading. The system and method detects a channel loading condition for a CATV RF signal including a plurality of utilized channels across a channel spectrum defining a plurality of potential channels. The channel loading condition may be detected by scanning the CATV RF signal to measure the channel loading or by obtaining channel loading data from a remote PHY device (RPD) located in the optical node. The system and method then obtains an amplifier operating parameter associated with the channel loading condition and applies the amplifier operating parameter to control power consumption of an amplifier in the optical node (e.g., by changing bias current) in response to the channel loading condition.

公开(公告)号：US10020636B2

公开(公告)日：2018-07-10

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 ,  H01S5/06 ,  H04B10/27 ,  H04J14/02 ,  H01S5/12 ,  H01S5/0625 ,  H01S5/024 ,  H01S5/10 ,  H01S5/40

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.

公开(公告)号：US09964720B2

公开(公告)日：2018-05-08

申请号：US14295459

申请日：2014-06-04

Applicant: Applied Optoelectronics, Inc.

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

IPC: G02B6/42 ,  H04J14/02 ,  H04B10/50 ,  H04B10/572 ,  H01S5/024 ,  H01S5/068 ,  G02B6/12 ,  G02B6/293 ,  H01S5/00 ,  H01S5/12 ,  H01S5/022 ,  H01S5/06 ,  H01S5/40

CPC classification number: G02B6/4271 ,  G02B6/12019 ,  G02B6/29329 ,  G02B6/2938 ,  G02B6/4292 ,  H01S5/0014 ,  H01S5/02216 ,  H01S5/02415 ,  H01S5/02453 ,  H01S5/0612 ,  H01S5/06804 ,  H01S5/12 ,  H01S5/4025 ,  H01S5/4087 ,  H04B10/503 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0256

Abstract: The temperature at different locations along a multiplexed laser array may be monitored by sensing temperature at two locations within a transmitter optical subassembly (TOSA) package housing the laser array. The temperature at the two locations is used to determine a temperature tilt across the laser array. Estimated temperatures may then be determined at one or more other locations along the laser array from the temperature tilt. The estimated temperature(s) may then be used to adjust the temperature proximate the other locations, for example, for purposes of tuning lasers at those locations along the laser array to emit a desired channel wavelength. The TOSA package may be used in an optical transceiver in a wavelength division multiplexed (WDM) optical system, for example, in an optical line terminal (OLT) in a WDM passive optical network (PON).

公开(公告)号：US09817196B2

公开(公告)日：2017-11-14

申请号：US14974492

申请日：2015-12-18

Applicant: Applied Optoelectronics, Inc.

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

IPC: G02B6/42 ,  H04B10/40 ,  H04B10/60

CPC classification number: G02B6/4215 ,  G02B6/4214 ,  G02B6/4263 ,  H04B10/40 ,  H04B10/60

Abstract: An optical sub-assembly cartridge for use in a multi-channel receiver optical sub-assembly (ROSA) is disclosed and includes pre-aligned demultiplexing optics. The optical sub-assembly cartridge may include a plurality of sidewalls which define a cartridge body and at least partially enclose a cavity therein. A sidewall of the cartridge body may include a sidewall opening configured to allow light to enter the cavity. A first optical filter disposed opposite the sidewall opening may receive light entering the cavity and be configured to pass unassociated channel wavelengths out of the cavity while reflecting associated channel wavelengths to a mirror disposed in the cavity. The mirror may then reflect the received channel wavelengths to a second optical filter within or external to the cavity. The second optical filter may emit a narrow spectrum of channel wavelengths to a photodiode package to convert the same to a proportional electrical signal.

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：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。