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：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：US20160041343A1

公开(公告)日：2016-02-11

申请号：US14883970

申请日：2015-10-15

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung HO ,  Stefan J. MURRY ,  Che-Shou (Richard) YEH

IPC: G02B6/38

CPC classification number: G02B6/3825 ,  G02B6/38 ,  G02B6/3807 ,  G02B6/3869 ,  G02B6/3874 ,  G02B6/3877 ,  G02B6/3879 ,  G02B6/42 ,  G02B6/4201 ,  G02B6/421 ,  G02B6/4246 ,  G02B6/4292 ,  G02B6/4293

Abstract: A multi-channel optical transceiver includes a multi-channel transmitter optical subassembly (TOSA), a multi-channel receiver optical subassembly (ROSA), and a dual fiber type direct link adapter directly linked to the multi-channel TOSA and the multi-channel ROSA with optical fibers. The dual fiber type direct link adapter is also configured to receive pluggable optical connectors, such as LC connectors, mounted at the end of fiber-optic cables including optical fibers for carrying optical signals to and from the transceiver. The dual fiber type direct link adapter thus provides the optical input and output to the transceiver for the optical signals received by the ROSA and transmitted by the TOSA. The multi-channel 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多通道发射器光子组件（TOSA），多通道接收器光子组件（ROSA）和直接链接到多通道TOSA和多通道的双光纤类型直接链路适配器 带光纤的ROSA。 双纤维型直接连接适配器还被配置为接收可插入的光学连接器，诸如LC连接器，其安装在包括用于将光信号传送到收发器的光纤的光纤的光纤端部。 因此，双光纤类型直接链路适配器为光收发器提供光输入和输出，用于由ROSA接收并由TOSA传输的光信号。 多通道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。