公开(公告)号：US20200336219A1

公开(公告)日：2020-10-22

申请号：US16387816

申请日：2019-04-18

Applicant: Applied Optoelectronics, Inc.

Inventor： Chong WANG ,  Kai-Sheng LIN ,  Yongxuan LIANG ,  I-Lung HO

IPC: H04B10/80 ,  G02B6/42 ,  H05K9/00 ,  H04B10/50 ,  H04J14/02

Abstract: In general, the present disclosure is directed to a transmitter optical subassembly (TOSA) module for use in an optical transceiver or transmitter that includes a magnetically-shielded optical isolator to minimize or otherwise reduce magnetization of TOSA components. An embodiment of the present disclosure includes a TOSA housing with magnetic shielding at least partially surrounding an optical isolator, with the magnetic shielding reflecting associated magnetic energy away from components, such as a metal TOSA housing or components disposed therein, that could become magnetized and adversely impact the magnetic flux density of the magnetic field associated with the optical isolator.

公开(公告)号：US20210013696A1

公开(公告)日：2021-01-14

申请号：US16506587

申请日：2019-07-09

Applicant: Applied Optoelectronics, Inc.

Inventor： Chong WANG ,  Kai-Sheng LIN ,  YongXuan LIANG

IPC: H01S5/024 ,  H01S5/022 ,  H04B10/50

Abstract: In general the present disclosure is directed to a temperature control device, e.g., a TEC, that includes a top plate with at least first and second contact pads to allow for a soldering process to attach optical components to the first contact pad without causing one or more layers of the second contact pad to reflow and solidify with an uneven mounting surface. Thus, optical components such as a focus lens can be mounted to the second contact pad via, for instance, thermal epoxy. This avoids the necessity of a submount to protect the focus lens from the relatively high heat introduced during a soldering process as well as maintain the flatness of the second contact pad within tolerance so that the mounted focus lens optically aligns by virtue of its physical location/orientation with other associated optical components coupled to the first contact pad, e.g., a laser diode.

公开(公告)号：US20180172928A1

公开(公告)日：2018-06-21

申请号：US15334753

申请日：2016-10-26

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung HO ,  Chong WANG ,  YongXuan LIANG

IPC: G02B6/42 ,  H04B10/40

CPC classification number: G02B6/4246 ,  G02B6/42 ,  G02B6/4256 ,  G02B6/4281 ,  G02B6/4292 ,  H04B10/40 ,  H04J14/0227

Abstract: In accordance with an embodiment, a transmitter optical subassembly (TOSA) module is disclosed with a base portion that provides one or more mounting surfaces to mount a laser diode and associated driver circuitry in close proximity to allow for direct coupling without the use of an intermediate interconnect device, such as a flexible printed circuit or other interconnect device. The TOSA module base further includes a cylindrical shaped portion with a passageway extending therethrough. The substantially cylindrical shaped portion allows the TOSA module base to mount to a multi-channel TOSA housing via a Z-ring or other suitable welding ring without the use of an intermediate device such as a welding cap.

公开(公告)号：US20180131442A1

公开(公告)日：2018-05-10

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: H04B10/40 ,  H04J14/02 ,  G02B6/42 ,  G02B6/43 ,  H04B10/50

CPC classification number: H04B10/40 ,  G02B6/3885 ,  G02B6/4215 ,  G02B6/425 ,  G02B6/4263 ,  G02B6/4271 ,  G02B6/4272 ,  G02B6/4286 ,  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：US20170195079A1

公开(公告)日：2017-07-06

申请号：US14983773

申请日：2015-12-30

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun ZHENG ,  I-Lung HO ,  Chong WANG

IPC: H04J14/02 ,  H04Q11/00 ,  H04B10/40

CPC classification number: H04J14/0221 ,  H04B10/40 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0256 ,  H04Q11/0066 ,  H04Q2011/0016 ,  H04Q2011/0032 ,  H04Q2011/0035

Abstract: An optical transceiver assembly includes a thermal dual arrayed waveguide grating (AWG) for both multiplexing and demultiplexing optical signals. The thermal dual AWG may be used as an optical multiplexer/demultiplexer with an array of laser emitters and an array of photodetectors to provide a transmitter optical subassembly (TOSA) and a receiver optical subassembly (ROSA) in the optical transceiver assembly. The thermal dual AWG may be formed as a single chip, and a temperature control device, such as thermoelectric cooler (TEC), may be used in the transceiver to stabilize the temperature of the AWG. In an embodiment, an external reflector may be used at a transmit output of the dual AWG to complete the lasing cavities after the AWG, thereby providing a laser array mux assembly. The optical transceiver device may also be part of a larger system, such as a wavelength division multiplexed (WDM) passive optical network (PON).

公开(公告)号：US20170176698A1

公开(公告)日：2017-06-22

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：US20180284366A1

公开(公告)日：2018-10-04

申请号：US15759100

申请日：2016-09-06

Applicant: Applied Optoelectronics Inc.

Inventor： Kai-Sheng LIN ,  I-Lung HO ,  Jun ZHENG ,  Chong WANG

IPC: G02B6/42 ,  H04B10/40 ,  H01S5/00 ,  G02B6/32

Abstract: A multi-channel transmitter optical subassembly (TOSA) with an off-center fiber in an optical coupling is disclosed, and can provide passive compensation for beam displacement introduced by optical isolators. The optical coupling receptacle can include an optical isolator configured to receive a focused light beam from a focus lens within the TOSA. The optical coupling receptacle may be offset such that a center line of the focused light beam entering the optical isolator is offset from a center line of a fiber within optical coupling receptacle. Thus the optical isolator receives the focused light beam from the focus lens and introduces beam displacement such that an optical signal is launched generally along a center line of the fiber. Thus the expected beam displacement introduced by the optical isolator is eliminated or otherwise mitigated by the offset between a center line of the fiber and a center position of the focus lens.

公开(公告)号：US20180062756A1

公开(公告)日：2018-03-01

申请号：US15252743

申请日：2016-08-31

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung HO ,  Chong WANG ,  YongXuan LIANG

IPC: H04B10/572 ,  G02B6/42 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/572 ,  G02B6/29365 ,  G02B6/2938 ,  G02B6/4249 ,  G02B6/428 ,  H01S5/12 ,  H01S5/4087 ,  H04B10/503 ,  H04J14/02

Abstract: Techniques are disclosed for providing relatively short distances between multi-channel transmitter optical subassemblies (TOSAs) and associated transmit connecting circuit in order to reduce losses due to signal propagation delays, also sometimes referred to as signal flight time delays. In an embodiment, a TOSA includes a plurality of laser assemblies disposed along a same sidewall of the TOSA along a longitudinal axis. The TOSA may be disposed within an optical transceiver housing in a transverse orientation, whereby a longitudinal center line of the multi-channel TOSA is substantially perpendicular to the longitudinal axis of the optical transceiver housing. The TOSA may be positioned adjacent an end of the optical transceiver housing having a transmit connecting circuit. Thus each of the plurality of laser assemblies may be positioned at a relatively short distance, e.g., 120 microns or less, away from the transmit connecting circuit.

公开(公告)号：US20180059340A1

公开(公告)日：2018-03-01

申请号：US15252702

申请日：2016-08-31

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  Chong WANG ,  Justin LII

IPC: G02B6/42 ,  G02B6/293

CPC classification number: G02B6/4244 ,  G02B6/29362 ,  G02B6/2938 ,  G02B6/4206 ,  G02B6/4215 ,  G02B6/4219 ,  G02B6/4246 ,  G02B7/006 ,  G02B27/1006

Abstract: In an embodiment, an optical component assembly is disclosed and is configured to be at least partially disposed within at least one first opening of an optical subassembly housing. The at least one optical component assembly comprising a base extending from a first end to a second end along a longitudinal axis, and a vertical mount disposed on the base and including a first surface that provides a mounting region to couple to an optical component, the first surface defining a vertical axis that extends substantially upright from the base and a horizontal axis that is angled relative to the longitudinal axis of the base at a first angle, the vertical mount further providing a channel that extends through the vertical mount, wherein the channel provides an optical pathway angled relative to the first surface at the first angle, the first angle being substantially between about 15 and 75 degrees.

公开(公告)号：US20170075079A1

公开(公告)日：2017-03-16

申请号：US14850367

申请日：2015-09-10

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  I-Lung HO ,  Jun ZHENG ,  Chong WANG

IPC: G02B6/42 ,  H01S5/00 ,  H04B10/40 ,  G02B6/32

CPC classification number: G02B6/4209 ,  G02B6/32 ,  G02B6/4215 ,  G02B6/4228 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4292 ,  H01S5/0078 ,  H04B10/40

Abstract: A multi-channel transmitter optical subassembly (TOSA) with an off-center fiber in an optical coupling is disclosed, and can provide passive compensation for beam displacement introduced by optical isolators. The optical coupling receptacle can include an optical isolator configured to receive a focused light beam from a focus lens within the TOSA. The optical coupling receptacle may be offset such that a center line of the focused light beam entering the optical isolator is offset from a center line of a fiber within optical coupling receptacle. Thus the optical isolator receives the focused light beam from the focus lens and introduces beam displacement such that an optical signal is launched generally along a center line of the fiber. Thus the expected beam displacement introduced by the optical isolator is eliminated or otherwise mitigated by the offset between a center line of the fiber and a center position of the focus lens.

Abstract translation: 公开了一种在光耦合中具有偏心光纤的多通道发射器光学组件（TOSA），并可为光隔离器引入的光束位移提供无源补偿。 光耦合插座可以包括配置成从TOSA内的聚焦透镜接收聚焦光束的光隔离器。 光耦合插座可以偏移，使得进入光隔离器的聚焦光束的中心线偏离光耦合插座内的光纤的中心线。 因此，光隔离器接收来自聚焦透镜的聚焦光束并且引入光束位移，使得光信号大致沿着光纤的中心线发射。 因此，由光隔离器引入的预期光束位移被消除或者通过光纤的中心线与聚焦透镜的中心位置之间的偏移来缓和或减轻。