公开(公告)号：US10514515B2

公开(公告)日：2019-12-24

申请号：US15475073

申请日：2017-03-30

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  Hsiu-Che Wang ,  Ziliang Cai

IPC: G02B6/42 ,  G02B6/38 ,  H01S5/022 ,  H04B10/40

Abstract: An optical transceiver module is disclosed having a housing that includes at least a first housing portion and a second housing portion, each of the first and second housing portions including a base portion having at least one sidewall extending therefrom that defines a compartment. The first housing portion is configured to couple to the second housing portion to form a cavity therebetween. A transmitter optical subassembly (TOSA) arrangement coupled to the base portion of the first housing portion and is electrically coupled to a first flexible printed circuit (FPC). A receiver optical subassembly (ROSA) arrangement is coupled to the base portion of the second housing portion and is electrically coupled to a second FPC. A first shield coupled to at least one of the first housing portion or the second housing portion to reduce electromagnetic interference between the TOSA arrangement and the ROSA arrangement.

公开(公告)号：US10509184B2

公开(公告)日：2019-12-17

申请号：US15473563

申请日：2017-03-29

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Hsiu-Che Wang ,  Hao-Hsiang Liao

IPC: G02B6/42 ,  G02B6/12

Abstract: In accordance with an embodiment, a welding assembly is disclosed that allows for a laser assembly to be coupled into a socket of the same and held at a fixed position, e.g., by a mechanical grabber of a welding system. The mechanical grabber may then travel along one or more axis to bring the TOSA module into mechanical alignment with an opening of an associated optical subassembly housing. The welding assembly may further include an alignment member that provides one or more alignment contact surfaces configured to be brought directly into contact with a surface of the associated subassembly housing. When the one or more alignment contact surfaces are “flush” with the surface of the subassembly housing the emission face of the TOSA module is substantially parallel, and by extension, optically aligned with the opening of the associated subassembly housing.

公开(公告)号：US10451825B1

公开(公告)日：2019-10-22

申请号：US16167864

申请日：2018-10-23

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  Ziliang Cai ,  Hao-Chiang Cheng

IPC: G02B6/42 ,  H04B10/40 ,  G02B6/38

Abstract: The present disclosure is generally directed to an optical transceiver module with a locking arrangement that allows the optical transceiver module to be releasably coupled into an associated receptacle of an optical transceiver cage. The locking arrangement includes a handle member with teeth configured to engage notches of an actuating member to allow rotational movement of the handle to be translated into linear movement by the actuating member. The linear movement of the actuating member may be independent of the housing of the optical transceiver module, and as the handle is transitioned from a locked position to a release position such movement of the actuating member can urge release of the locking members of the optical transceiver cage by way of the tab portions of the actuating member. A user may then supply a force, e.g., a pulling force, to remove the unlocked subassembly module from the receptacle.

公开(公告)号：US10418777B2

公开(公告)日：2019-09-17

申请号：US15591274

申请日：2017-05-10

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Qin Li ,  Chong Wang ,  Hao-Hsiang Liao

IPC: H04B10/00 ,  H01S5/022 ,  H01S5/024 ,  H04B10/50

Abstract: A coaxial transmitter optical subassembly (TOSA) including a side-by-side laser diode and monitor photodiode package, consistent with embodiments of the present disclosure, may be used in an optical transceiver for transmitting an optical signal at a channel wavelength. In an embodiment, the coaxial TOSA includes a laser sub-mount coupled to a mounting region defined by a body of the coaxial TOSA. The laser sub-mount includes a monitor photodiode disposed adjacent to a side of a laser diode such that a sensor region of the monitor photodiode is disposed within, or in close proximity to, a light cone emitted by a light emitting surface of the laser diode. The monitor photodiode is thus configured to directly receive a portion of emitted channel wavelengths from the laser diode for monitoring purposes.

公开(公告)号：US10295763B2

公开(公告)日：2019-05-21

申请号：US15613655

申请日：2017-06-05

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Luohan Peng ,  Kai-Sheng Lin ,  Elsie Marentes

IPC: G02B6/12 ,  G02B6/42 ,  G02B6/125 ,  G02B6/38 ,  H04B10/40

Abstract: Techniques for flexible coupling between an optical coupling receptacle/port of an optical transceiver housing and optical components within the same are disposed. In an embodiment, an optical transceiver housing includes an intermediate fiber with a first end optically coupled to an optical coupling port and a second end optically coupled to a multiplexer/de-multiplexer device, e.g., an arrayed waveguide grating (AWG) device, PLC splitter, and so on. The intermediate fiber may be routed in the transceiver housing in a manner that and the radius of the bends may be optimized to reduce fiber bending losses. The techniques herein are equally applicable to both ROSA and TOSA modules and may be utilized to achieve flexible coupling for multi-channel transceiver devices.

公开(公告)号：US20180348456A1

公开(公告)日：2018-12-06

申请号：US15613655

申请日：2017-06-05

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung HO ,  Luohan PENG ,  Kai-Sheng LIN ,  Elsie MARENTES

IPC: G02B6/42 ,  G02B6/125 ,  G02B6/38 ,  H04B10/40 ,  H04B10/50 ,  H04B10/25

CPC classification number: G02B6/4246 ,  G02B6/125 ,  G02B6/3897 ,  G02B6/4256 ,  G02B2006/12164 ,  H04B10/25 ,  H04B10/40 ,  H04B10/50

Abstract: Techniques for flexible coupling between an optical coupling receptacle/port of an optical transceiver housing and optical components within the same are disposed. In an embodiment, an optical transceiver housing includes an intermediate fiber with a first end optically coupled to an optical coupling port and a second end optically coupled to a multiplexer/de-multiplexer device, e.g., an arrayed waveguide grating (AWG) device, PLC splitter, and so on. The intermediate fiber may be routed in the transceiver housing in a manner that and the radius of the bends may be optimized to reduce fiber bending losses. The techniques herein are equally applicable to both ROSA and TOSA modules and may be utilized to achieve flexible coupling for multi-channel transceiver devices.

公开(公告)号：US10073229B2

公开(公告)日：2018-09-11

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 ,  G02B6/4237 ,  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：US20180109319A1

公开(公告)日：2018-04-19

申请号：US15295189

申请日：2016-10-17

Applicant: Applied Optoelectronics, Inc.

Inventor： Michael JONES ,  Rafael CELEDON

IPC: H04B10/2575 ,  H04B10/564 ,  H04B17/00

CPC classification number: H04B10/25751 ,  H04B10/564 ,  H04B10/6931

Abstract: Energy reduction in a CATV network device, such as an optical node, in a CATV network may be accomplished using a system and method for controlling an amplifier in response to channel loading. The system and method detects a channel loading condition for a CATV RF signal including a plurality of utilized channels across a channel spectrum defining a plurality of potential channels. The channel loading condition may be detected by scanning the CATV RF signal to measure the channel loading or by obtaining channel loading data from a remote PHY device (RPD) located in the optical node. The system and method then obtains an amplifier operating parameter associated with the channel loading condition and applies the amplifier operating parameter to control power consumption of an amplifier in the optical node (e.g., by changing bias current) in response to the channel loading condition.

公开(公告)号：US09876576B2

公开(公告)日：2018-01-23

申请号：US15073360

申请日：2016-03-17

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Chong Wang ,  Jianhong Luo ,  Che-Shou Yeh

IPC: H04B10/40 ,  H04B10/50 ,  G02B6/42 ,  G02B6/43 ,  G02B6/27 ,  G02B6/293

CPC classification number: H04B10/40 ,  G02B6/2746 ,  G02B6/2938 ,  G02B6/4215 ,  G02B6/4245 ,  G02B6/4246 ,  G02B6/4257 ,  G02B6/4263 ,  G02B6/4272 ,  G02B6/4284 ,  G02B6/43 ,  H04B10/503 ,  H04B10/506

Abstract: Layered coaxial transmitter optical subassemblies (TOSAs) with a support bridge therebetween may be used in an optical transmitter or transceiver for transmitting optical signals at multiple channel wavelengths. The coaxial TOSAs may include cuboid type TO laser packages having substantially flat outer surfaces that may be mounted on substantially flat outer surfaces on a transmitter or transceiver housing or on the support bridge. The support bridge supports and isolates one layer of the TOSAs mounted over another layer of the TOSAs such that the TOSAs may be stacked to fit within a small space without sacrificing optical coupling efficiency.

公开(公告)号：US20170310085A1

公开(公告)日：2017-10-26

申请号：US15640978

申请日：2017-07-03

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun ZHENG ,  Stefan J. MURRY ,  Bujin GUO

IPC: H01S5/14 ,  H04J14/02 ,  H04B10/50 ,  H01S3/105 ,  H01S5/022 ,  H01S3/106 ,  H01S3/08

CPC classification number: H01S5/143 ,  H01S3/08063 ,  H01S3/105 ,  H01S3/106 ,  H01S5/02248 ,  H01S5/02284 ,  H04B10/506 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

Abstract: A wavelength-selectable laser device providing spatially-selectable wavelength(s) may be used to select one or more wavelengths for lasing in a tunable transmitter or transceiver, for example, in a wavelength division multiplexed (WDM) optical system such as a WDM passive optical network (PON). The wavelength-selectable laser device uses a dispersive optical element, such as a diffraction grating, to disperse light emitted from a laser emitter and to direct different wavelengths of the light toward a reflector at different spatial positions such that the wavelengths may be selected by allowing light to be reflected from selected spatial position(s) back into the laser emitter. Thus, the reflected light with a wavelength at the selected spatial position(s) is allowed to complete the laser cavity.