公开(公告)号：US09509433B2

公开(公告)日：2016-11-29

申请号：US14088883

申请日：2013-11-25

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Luohan Peng ,  Joyce Li

IPC: G02B6/00 ,  H04J14/02 ,  H04B10/25 ,  H04B10/60 ,  H04Q11/00

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：US09225428B1

公开(公告)日：2015-12-29

申请号：US14465240

申请日：2014-08-21

Applicant: Applied Optoelectronics, Inc.

Inventor： Luohan Peng ,  Zhengyu Miao ,  Hao-Hsiang Liao

IPC: H04J14/02 ,  H04B10/60 ,  H04B10/25 ,  H04Q11/00

CPC classification number: H04Q11/0005 ,  G02B6/4225 ,  G02B6/4256

Abstract: A system is provided for aligning a photodetector array to optical outputs of an optical demultiplexer in a multi-channel receiver optical subassembly (ROSA). In one embodiment, the system may include a clamp alignment fixture configured to secure a position of a photodetector mounting bar within a ROSA housing, wherein the photodetector array is disposed on the photodetector mounting bar and the photodetector array includes a plurality of photodiodes. The system may further include a motion staging device configured to adjust an orientation of the photodetector mounting bar by varying an angle of the clamp alignment fixture. The adjustment may be based on observation of the location of an optical alignment signal relative to the plurality of photodiodes, the optical alignment signal projected onto the photodetector mounting bar by the optical demultiplexer.

Abstract translation: 提供了一种用于将光电检测器阵列与多通道接收机光学子组件（ROSA）中的光解复用器的光输出对准的系统。 在一个实施例中，系统可以包括夹具对准夹具，其被配置为将光电检测器安装杆的位置固定在ROSA壳体内，其中光电检测器阵列设置在光电检测器安装杆上，并且光电检测器阵列包括多个光电二极管。 该系统还可以包括运动分段装置，其配置成通过改变夹具对准夹具的角度来调整光电检测器安装杆的取向。 调整可以基于相对于多个光电二极管的光学对准信号的位置的观察，光学对准信号由光学解复用器投射到光电检测器安装杆上。

公开(公告)号：US20140161459A1

公开(公告)日：2014-06-12

申请号：US13760533

申请日：2013-02-06

Applicant: APPLIED OPTOELECTRONICS, INC.

Inventor： I-Lung Ho ,  Jun Zheng ,  Luohan Peng

IPC: H04B10/40

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

Abstract: A thermally shielded multi-channel transmitter optical subassembly (TOSA) may be used in a multi-channel optical transceiver. The multi-channel TOSA generally includes an array of lasers optically coupled to an arrayed waveguide grating (AWG) to combine multiple optical signals at different channel wavelengths. A plurality of laser array thermal shields are thermally coupled to a temperature control device, such as a thermoelectric cooler (TEC), and thermally shield the respective lasers in the laser array in separate thermally shielded compartments. Each of the lasers may also be individually thermally controlled to provide a desired wavelength, for example, using a heater and/or cooler located in each thermally shielded compartment. 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: 可以在多通道光收发器中使用热屏蔽多通道发射机光学子组件（TOSA）。 多通道TOSA通常包括光学耦合到阵列波导光栅（AWG）的激光器阵列，以组合在不同沟道波长处的多个光信号。 多个激光阵列热屏蔽件热耦合到诸如热电冷却器（TEC）的温度控制装置，并且在分离的热屏蔽隔室中将激光器阵列中的相应激光器热屏蔽。 每个激光器还可以被单独地热控制以提供期望的波长，例如使用位于每个隔热隔间中的加热器和/或冷却器。 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。