公开(公告)号：US11177887B2

公开(公告)日：2021-11-16

申请号：US16737438

申请日：2020-01-08

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  Hang Xie ,  Yi Wang

IPC: H04B10/00 ,  H04B10/40 ,  H04B10/80 ,  H04B10/50 ,  H01L23/52

Abstract: The present disclosure is generally directed to a stepped profile for substrates that support “on board” optical subassembly arrangements. The stepped profile enables mounting TOSA modules to the substrate in a recessed orientation to reduce the overall distance between terminals of the substrate and associated components of the TOSA, e.g., RF terminals of the substrate and an LDD of the TOSA. In an embodiment, the stepped profile further simplifies mounting and optical alignment of TOSA modules by providing at least one mechanical stop to engage surfaces of the TOSA modules and limit travel by the same along one or more axis.

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：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：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。

公开(公告)号：US09236949B1

公开(公告)日：2016-01-12

申请号：US14312930

申请日：2014-06-24

Applicant: Applied Optoelectronics, Inc.

Inventor： Yi Wang ,  Huanlin Zhang

IPC: H04B10/00 ,  H04B10/58 ,  H04B10/50 ,  H04B10/40 ,  H04J14/02

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。

公开(公告)号：US09083468B2

公开(公告)日：2015-07-14

申请号：US13975867

申请日：2013-08-26

Applicant: Applied Optoelectronics, Inc.

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

IPC: H04B10/40 ,  H01S5/024 ,  H04B10/50

CPC classification number: H04B10/503 ,  H01S5/02216 ,  H01S5/02415 ,  H01S5/02453 ,  H01S5/02461 ,  H01S5/12 ,  H04B10/40 ,  H04J14/02

Abstract: A heated laser package generally includes a laser diode, a heating resistor and a transistor in a single laser package. The heating resistor and transistor form a heating circuit and may be located on a submount adjacent to the laser diode. The transistor is configured to control the drive current to the heating resistor and any additional heat generated by the transistor may contribute to the heating of the laser diode and thus increase the thermal efficiency of the system. The heated laser package may be used in a temperature controlled multi-channel transmitter optical subassembly (TOSA), which may be used in a multi-channel optical transceiver. 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: 加热的激光器封装通常包括激光二极管，加热电阻器和单个激光器封装中的晶体管。 加热电阻器和晶体管形成加热电路并且可以位于与激光二极管相邻的基座上。 晶体管被配置为控制到加热电阻器的驱动电流，并且由晶体管产生的任何额外的热量可能有助于激光二极管的加热，从而提高系统的热效率。 加热的激光器封装可以用在可以在多通道光收发器中使用的温度控制的多通道发射机光学子组件（TOSA）中。 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：US10698168B1

公开(公告)日：2020-06-30

申请号：US16239197

申请日：2019-01-03

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  Yi Wang ,  Ziliang Cai

IPC: G02B6/42 ,  H01S5/022

Abstract: The present disclosure is generally directed to an optical transceiver module that includes a mounting section for aligning and coupling to associated TOSA modules. In particular, an embodiment of the present disclosure includes TOSA and ROSA components disposed on a printed circuit board assembly (PCBA). The PCBA includes a plurality of grooves at a optical coupling end to provide a TOSA mounting section. Each of the grooves provides at least one mating surface to receive and couple to an associated TOSA module. Opposite the optical coupling end, the PCBA includes an electric coupling section for coupling to, for example, a transmit (RX) circuit that provides one or more electrical signals to drive TOSA modules coupled to the TOSA mounting section.

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：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。

公开(公告)号：US20150295385A1

公开(公告)日：2015-10-15

申请号：US14248553

申请日：2014-04-09

Applicant: Applied Optoelectronics, Inc.

Inventor： Yi Wang ,  Jun Zheng ,  Yanyan Zhang

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

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。