公开(公告)号：US10230471B2

公开(公告)日：2019-03-12

申请号：US15576635

申请日：2016-05-23

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

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：US10042116B2

公开(公告)日：2018-08-07

申请号：US15137823

申请日：2016-04-25

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Zhengyu Miao ,  Qin Li

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

Abstract: An arrayed waveguide grating (AWG) device for use in an optical transceiver is disclosed, and can de-multiplex an optical signal into N number of channel wavelengths. The AWG device can include an AWG chip, with the AWG chip providing a planar lightwave (PLC) circuit configured to de-multiplex channel wavelengths and launch the same into output waveguides. A region of the AWG chip may be tapered such that light traveling via the output waveguides encounters an angled surface of the tapered region and reflects towards an output interface region of the AWG chip. Thus detector devices may optically couple to the output interface region of the AWG chip directly, and can avoid losses introduced by other approaches which couple an output of an AWG to detectors by way of a fiber array or other intermediate device.

公开(公告)号：US09847434B2

公开(公告)日：2017-12-19

申请号：US14665639

申请日：2015-03-23

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Chong Wang ,  Luohan Peng

IPC: H04B10/69 ,  H01L31/0203 ,  H04B10/40 ,  G02B6/00

CPC classification number: H01L31/0203 ,  G02B6/00 ,  H01L2224/48091 ,  H04B10/40 ,  H01L2924/00014

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, the photodetectors are mounted on a photodetector mounting bar that includes a multiple conductive photodetector pads (PD pads). Each of the PD pads may be configured to receive a photodetector, and the PD pads are electrically isolated from ground such that the photodetectors are floating. The photodetector bar further includes multiple conductive transimpedance amplifier pads (TIA pads). Each of the TIA pads may be configured to receive a TIA, associated with one of the photodetectors, and to be electrically coupled to one or more ground ports of the TIA. The TIA pads are electrically connected to a common ground shared be each of said TIAs.

公开(公告)号：US09703054B2

公开(公告)日：2017-07-11

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 ,  G02B6/12 ,  H04J14/02 ,  H04B10/40 ,  G02B6/36 ,  H04B10/60 ,  H04Q11/00 ,  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.

公开(公告)号：US20170063464A1

公开(公告)日：2017-03-02

申请号：US14837993

申请日：2015-08-27

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Kai-Sheng LIN ,  Chong WANG

IPC: H04B10/40 ,  G02B7/00 ,  H01S5/00 ,  G02B5/26 ,  H01S5/022 ,  H01S5/40

CPC classification number: G02B6/3831 ,  G02B5/26 ,  G02B6/423 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4292 ,  G02B7/006 ,  H01S5/0078 ,  H01S5/02212 ,  H01S5/02284 ,  H01S5/02288 ,  H01S5/4087 ,  H04B10/40 ,  H04J14/02

Abstract: A multi-channel transmitter optical subassembly (TOSA) including staggered transistor outline (TO) can laser package placement to provide enhanced coupling and optical power is disclosed, and may be used in an optical transceiver for transmitting an optical signal. The TOSA comprises a housing that includes plurality of sidewall openings with each sidewall opening configured to couple to a TO can laser package to provide coarse wavelength division multiplexing. The housing includes at least first and second sidewall openings on a first sidewall, and a third sidewall opening disposed on a sidewall opposing the first sidewall and being positioned at generally a mid-point between the first and second sidewall openings. This staggered and opposing sidewall opening arrangement allows an increased distance between adjacent sidewall openings, and thus, the TOSA may increase optical power and yield by providing additional space for performing post-attachment alignment of TO can laser packages.

Abstract translation: 包括交错晶体管轮廓（TO）的多通道发射器光学子组件（TOSA）可以激光封装放置以提供增强的耦合和光功率，并且可以用于光收发器中用于发射光信号。 TOSA包括壳体，其包括多个侧壁开口，每个侧壁开口被配置成耦合到TO罐激光器封装以提供粗略的波分复用。 壳体包括在第一侧壁上的至少第一和第二侧壁开口，以及设置在与第一侧壁相对的侧壁上的第三侧壁开口，并且大致位于第一和第二侧壁开口之间的中点。 这种交错和相对的侧壁开口布置允许相邻侧壁开口之间的距离增加，因此，TOSA可以通过提供用于执行TO罐激光器封装的后连接对准的附加空间来增加光功率和产量。

公开(公告)号：US20160127044A1

公开(公告)日：2016-05-05

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 ,  G02B6/12 ,  H04J14/02

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：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：US20150245114A1

公开(公告)日：2015-08-27

申请号：US14188768

申请日：2014-02-25

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Jun Zheng ,  Hung-Lun Chang

IPC: H04Q11/00 ,  H04B10/079 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/503 ,  H04B10/079 ,  H04B10/40 ,  H04B10/572 ,  H04J14/0256 ,  H04J14/0282 ,  Y10T29/49002

Abstract: A bidirectional optical subassembly (BOSA) optical networking unit (ONU) generally includes a BOSA housing. A tunable laser is located in the BOSA housing and is configured to generate a first optical signal for transmission at a first selected wavelength based on temperature control. The tunable laser is a distributed feedback (DFB) laser diode. A thermal management device is also located in the BOSA housing and is configured to provide the temperature control. A photo diode is further located in the BOSA housing and is configured to receive a second optical signal at a second selected wavelength. The BOSA housing comprises an alloy of stainless steel or an alloy of Kovar.

Abstract translation: 双向光学子组件（BOSA）光网络单元（ONU）通常包括BOSA外壳。 可调激光器位于BOSA壳体中，并且被配置为基于温度控制产生用于以第一选定波长传输的第一光信号。 可调激光器是分布式反馈（DFB）激光二极管。 BASA外壳中还设有热管理装置，并配置为提供温度控制。 光电二极管还位于BOSA壳体中，并且被配置为在第二选定波长处接收第二光信号。 BOSA外壳包括不锈钢或Kovar合金的合金。

公开(公告)号：US20150055960A1

公开(公告)日：2015-02-26

申请号：US13975867

申请日：2013-08-26

Applicant: Applied Optoelectronics, Inc.

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

IPC: H04B10/50 ,  H04B10/40

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：US08831433B2

公开(公告)日：2014-09-09

申请号：US13708064

申请日：2012-12-07

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Luohan Peng ,  Justin Lii

IPC: H04B10/00 ,  H04J14/00 ,  H04J14/02

CPC classification number: H04B10/40 ,  H04J14/0254 ,  H04J14/0282

Abstract: A temperature controlled 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 temperature control system may be used to control the temperature of both the array of lasers and the AWG with the same temperature control device, e.g., a thermoelectric cooler (TEC). The multi-channel optical transceiver may also include a multi-channel receiver optical subassembly (ROSA). 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: 温度控制多通道发射机光学组件（TOSA）可用于多通道光收发器。 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。 温度控制系统可以用相同温度控制装置（例如热电冷却器（TEC））来控制激光器阵列和AWG阵列的温度。 多通道光收发器还可以包括多通道接收器光学子组件（ROSA）。 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。