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61.发明申请公开(公告)号：US20180287705A1
公开(公告)日：2018-10-04
申请号：US15475082
申请日：2017-03-30
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng LIN , Yi WANG , Kevin LIU
CPC classification number: H04B10/40 , G02B6/12004 , G02B6/12009 , G02B6/421 , G02B6/4246 , G02B6/4256 , G02B6/4262 , G02B6/4281 , H05K1/0218 , H05K1/028 , H05K1/118 , H05K1/189 , H05K2201/052 , H05K2201/09672 , H05K2201/10189
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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62.发明申请公开(公告)号：US20180284370A1
公开(公告)日：2018-10-04
申请号：US15473563
申请日：2017-03-29
Applicant: Applied Optoelectronics, Inc.
Inventor： I-Lung HO , Hsiu-Che WANG , Hao-Hsiang LIAO
CPC classification number: G02B6/4237 , G02B6/12009 , G02B6/4215 , G02B6/4225 , G02B6/423 , G02B6/4234 , G02B6/4245 , G02B6/4246 , G02B6/4256 , G02B6/4266 , G02B6/4281 , G02B6/4292
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.
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63.发明申请公开(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
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.
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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
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.
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65.发明申请公开(公告)号：US20180157005A1
公开(公告)日：2018-06-07
申请号：US15370559
申请日：2016-12-06
Applicant: Applied Optoelectronics, Inc.
Inventor： Kai-Sheng LIN , Hao-Hsiang LIAO , Justin LII
CPC classification number: G02B7/1824 , G02B7/003 , G02B27/0916 , G02B27/1006 , G02B27/141 , H04B10/66
Abstract: An optical component holder having a base portion with a chamfered (or step) portion is disclosed herein that allows a technician to position and partially insert the same within an associated opening using a relatively minor amount of force. The chamfered portion of the base portion operates, in a general sense, as a guide that ensures proper alignment of the optical component holder and allows the same to travel a predetermined distance within the opening before being blocked from further travel by “bottoming” out when the wider portion of the base is at the edge of the associated opening. Thus, the chamfered portion provides an alignment feature to provide tactile feedback that indicates to the technician that the optical component holder is aligned and evenly inserted into an associated opening prior to supplying additional force to press the optical component holder fully into a housing.
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Patent Agency Ranking
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.
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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
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.
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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.
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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
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.
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公开(公告)号：US09606145B2
公开(公告)日：2017-03-28
申请号：US14452715
申请日：2014-08-06
Applicant: Applied Optoelectronics, Inc.
Inventor： Luohan Peng , Darren Tucker , Justin Lii , David Hendricks
CPC classification number: G01R1/44 , G01R1/06722 , G01R31/2635 , G01R31/2863 , G01R31/2877
Abstract: A test fixture generally includes a thermoelectric cooler (TEC) configured to regulate the temperature of a device under test (DUT). The test fixture may further include a device carrier configured to secure the DUT in a desired position relative to the TEC and a spring-operated pin configured to generate a desired contact pressure between the DUT and the TEC. The desired contact pressure may be selected to achieve a thermal coupling between the DUT and the TEC that maintains the temperature of the DUT at a desired operation level.
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