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公开(公告)号：US10884201B2
公开(公告)日：2021-01-05
申请号：US16053398
申请日：2018-08-02
Applicant: Applied Optoelectronics, Inc.
Inventor： Kevin Liu , Kai-Sheng Lin , Hao-Chiang Cheng
Abstract: The present disclosure is generally directed to an on-board ROSA arrangement where a fiber receptacle element, optical components such as optical de-multiplexer (e.g., an arrayed waveguide grating (AWG)), turning mirror, photodiodes and light receiving chip are mounted to a common substrate. The fiber receptacle element includes a body that defines a slot to at least partially receive an end of the substrate and mount thereto. The body of the fiber receptacle further includes an aperture that extends through the body to receive an optical fiber and/or associated connector and align the same with ROSA components mounted on a surface of the substrate. The fiber receptacle body may be solid, e.g., formed from a single, monolithic piece of material, and may be manufactured from metal, plastic or other suitably rigid material.
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公开(公告)号：US10833775B1
公开(公告)日：2020-11-10
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
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.
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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
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.
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14.发明申请公开(公告)号：US20200285008A1
公开(公告)日：2020-09-10
申请号：US16295586
申请日：2019-03-07
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng LIN , Kevin LIU , Hao-Chiang CHENG
Abstract: The present disclosure is generally directed to a multi-channel TOSA arrangement with a housing that utilizes a feedthrough device with at least one integrated mounting surface to reduce the overall dimensions of the housing. The housing includes a plurality of sidewalls that define a hermetically-sealed cavity therebetween. The feedthrough device includes a first end disposed in the hermetically-sealed cavity of the housing and a second end extending from the cavity away from the housing. The feedthrough device provides the at least one integrated mounting surface proximate the first end within the hermetically-sealed cavity. At least a first laser diode driver (LDD) chip mounts to the at least one integrated mounting surface of the feedthrough device. A plurality of laser arrangements are also disposed in the hermetically-sealed cavity proximate the first LDD chip and mount to, for instance, a LD submount supported by a thermoelectric cooler.
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公开(公告)号：US20200241334A1
公开(公告)日：2020-07-30
申请号：US16257635
申请日：2019-01-25
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng LIN , Kevin Liu , Ziliang Cai
IPC: G02F1/09
Abstract: This present disclosure is generally directed to an optical isolator array with a magnetic base that allows for mounting and alignment of N number of optical isolators modules within an optical subassembly module. In an embodiment, the magnetic base provides at least one mounting surface for coupling to N number of optical isolators, with N being equal to an optical channel count for the optical subassembly (e.g., 4-channels, 8-channels, and so on). The magnetic base includes an overall width that allows for a desired number of optical isolators to get mounted thereon. Each optical isolator can be uniformly disposed along the same axis on the magnetic base and at a distance D from adjacent optical isolators. An adhesive such as ultraviolet-curing (UV-curing) optical adhesives may be used to secure each optical isolator at a predefined position and increase overall structural integrity.
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Patent Agency Ranking
公开(公告)号：US10714890B1
公开(公告)日：2020-07-14
申请号：US16268765
申请日：2019-02-06
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Hsiu-Che Wang , Kevin Liu
Abstract: The present disclosure is generally directed to a multi-channel TOSA with vertically-mounted MPDs to reduce TOSA housing dimensions and improve RF driving signal quality. In more detail, a TOSA housing consistent with the present disclosure includes at least one vertical MPD mounting surface that extends substantially transverse relative to a LD mounting surface, with the result being that a MPD coupled to the vertical MPD mounting surface gets positioned above an associated LD coupled to the LD mounting surface. The vertically-mounted MPD thus makes regions adjacent an LD that would otherwise be utilized to mount an MPD available for patterning of conductive RF traces to provide an RF driving signal to the LD. The conductive RF traces may therefore extend below the vertically-mounted MPD to a location that is proximate the LD to allow for relatively short wire bonds therebetween.
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公开(公告)号：US20200218018A1
公开(公告)日：2020-07-09
申请号：US16239197
申请日：2019-01-03
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng LIN , Yi WANG , Ziliang CAI
Abstract: The present disclosure is generally directed to an optical transceiver module that includes a mounting section for aligning and coupling to associated TOSA modules. In particular, an embodiment of the present disclosure includes TOSA and ROSA components disposed on a printed circuit board assembly (PCBA). The PCBA includes a plurality of grooves at a optical coupling end to provide a TOSA mounting section. Each of the grooves provides at least one mating surface to receive and couple to an associated TOSA module. Opposite the optical coupling end, the PCBA includes an electric coupling section for coupling to, for example, a transmit (RX) circuit that provides one or more electrical signals to drive TOSA modules coupled to the TOSA mounting section.
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18.发明申请公开(公告)号：US20200168655A1
公开(公告)日：2020-05-28
申请号：US16202813
申请日：2018-11-28
Applicant: Applied Optoelectronics, Inc.
Inventor： Hsiu-Che WANG , Elsie MARENTES , Qin LI
IPC: H01L27/146 , H01L25/16 , G02B6/12 , G02B6/293 , G02B27/09
Abstract: The present disclosure is generally directed to an optical transceiver that includes a multi-channel on-board ROSA arrangement that includes an optical demultiplexer, e.g., an arrayed waveguide grating (AWG) and an array of photodiodes disposed on a same substrate. The array of photodiodes may be optically aligned with an output port of the optical demultiplexer and be configured to detect channel wavelengths and output a proportional electrical signal to an amplification circuit, e.g., a transimpedance amplifier. Each of the photodiodes can include an integrated lens configured to increase the alignment tolerance between the demultiplexer and the light sensitive region such that relatively imprecise bonding techniques, e.g., die bonding, may be utilized while still maintaining nominal optical power.
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公开(公告)号：US10608408B1
公开(公告)日：2020-03-31
申请号：US16202854
申请日：2018-11-28
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Ziliang Cai , Chong Wang
Abstract: The present disclosure is generally directed to a laser subassembly for use in a TOSA module that includes an integrated impedance matching network to enable a plurality of selectable resistance configurations to ensure the driving circuit and laser emitter of the TOSA module have matching, or substantially matching, impedances. The laser subassembly includes a substrate with a driving circuit disposed thereon. The driving circuit includes signal conductors for electrically coupling to an external transmit connecting circuit, a conductive laser mounting section, and an impedance matching network. The impedance matching network includes a plurality of resistors, with one or more of the resistors being selectively electrically coupled to the conductive laser mounting section to introduce a selected amount of impedance to minimize or otherwise reduce reflection.
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公开(公告)号：US10230470B2
公开(公告)日：2019-03-12
申请号：US15475082
申请日：2017-03-30
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng Lin , Yi Wang , Kevin Liu
Abstract: In accordance with an embodiment, a multi-layered flexible printed circuit (FPC) is disclosed that includes two or more insulating layers to route conductive traces carrying radio frequency (RF) signals, e.g., data signals, and conductive traces carrying direct current (DC) signals, e.g., power signals and low-frequency control signals, while sufficiently isolating the RF signals from electrical interference by the DC transmission lines. This advantageously eliminates having two or more separate FPCs to electrically couple each optical subassembly, e.g., receiver optical subassemblies (ROSAs) and transmitter optical subassemblies (TOSAs), to associated circuitry in a transceiver housing, which saves space and reduces manufacturing complexity, for example.
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