公开(公告)号：US20210211199A1

公开(公告)日：2021-07-08

申请号：US16737438

申请日：2020-01-08

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  Hang XIE ,  Yi WANG

IPC: H04B10/40 ,  H01L23/52 ,  H04B10/50 ,  H04B10/80

Abstract: The present disclosure is generally directed to a stepped profile for substrates that support “on board” optical subassembly arrangements. The stepped profile enables mounting TOSA modules to the substrate in a recessed orientation to reduce the overall distance between terminals of the substrate and associated components of the TOSA, e.g., RF terminals of the substrate and an LDD of the TOSA. In an embodiment, the stepped profile further simplifies mounting and optical alignment of TOSA modules by providing at least one mechanical stop to engage surfaces of the TOSA modules and limit travel by the same along one or more axis.

公开(公告)号：US20200373737A1

公开(公告)日：2020-11-26

申请号：US16419379

申请日：2019-05-22

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  Hsiu-Che WANG ,  Ziliang CAI

IPC: H01S5/0683 ,  H04B10/40 ,  H04B10/50 ,  H01S5/40 ,  H01S5/024

Abstract: A temperature controlled multi-channel transmitter optical subassembly (TOSA), consistent with embodiments described herein, may be used in a multi-channel optical transceiver. The temperature controlled multi-channel TOSA generally includes an array of lasers to emit a plurality of different channel wavelengths. The lasers may be thermally tuned to the channel wavelengths by establishing a global temperature for the array of lasers such that the amount of heat communicated to each laser is substantially the same. The global temperature may be established, at least in part, by monitoring the shortest channel wavelength and/or a temperature of the lasers. The temperature of the lasers may then get increased via a shared heating device in thermal communication with the lasers until the shortest monitored wavelength substantially reaches the nominal shortest wavelength or the measured temperature substantially equals the global temperature.

公开(公告)号：US20200251879A1

公开(公告)日：2020-08-06

申请号：US16268765

申请日：2019-02-06

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  Hsiu-Che WANG ,  Kevin LIU

IPC: H01S5/022 ,  H01S5/024 ,  H01S5/00 ,  H01S5/40

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.

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

IPC: H04B10/40 ,  H05K1/02 ,  H05K5/00 ,  H05K1/11 ,  G02B6/42

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.

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：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

IPC: G02B7/182 ,  H04B10/66

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.

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。

公开(公告)号：US20170063464A1

公开(公告)日：2017-03-02

申请号：US14837993

申请日：2015-08-27

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Kai-Sheng LIN ,  Chong WANG

IPC: H04B10/40 ,  G02B7/00 ,  H01S5/00 ,  G02B5/26 ,  H01S5/022 ,  H01S5/40

CPC classification number: G02B6/3831 ,  G02B5/26 ,  G02B6/423 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4292 ,  G02B7/006 ,  H01S5/0078 ,  H01S5/02212 ,  H01S5/02284 ,  H01S5/02288 ,  H01S5/4087 ,  H04B10/40 ,  H04J14/02

Abstract: A multi-channel transmitter optical subassembly (TOSA) including staggered transistor outline (TO) can laser package placement to provide enhanced coupling and optical power is disclosed, and may be used in an optical transceiver for transmitting an optical signal. The TOSA comprises a housing that includes plurality of sidewall openings with each sidewall opening configured to couple to a TO can laser package to provide coarse wavelength division multiplexing. The housing includes at least first and second sidewall openings on a first sidewall, and a third sidewall opening disposed on a sidewall opposing the first sidewall and being positioned at generally a mid-point between the first and second sidewall openings. This staggered and opposing sidewall opening arrangement allows an increased distance between adjacent sidewall openings, and thus, the TOSA may increase optical power and yield by providing additional space for performing post-attachment alignment of TO can laser packages.

Abstract translation: 包括交错晶体管轮廓（TO）的多通道发射器光学子组件（TOSA）可以激光封装放置以提供增强的耦合和光功率，并且可以用于光收发器中用于发射光信号。 TOSA包括壳体，其包括多个侧壁开口，每个侧壁开口被配置成耦合到TO罐激光器封装以提供粗略的波分复用。 壳体包括在第一侧壁上的至少第一和第二侧壁开口，以及设置在与第一侧壁相对的侧壁上的第三侧壁开口，并且大致位于第一和第二侧壁开口之间的中点。 这种交错和相对的侧壁开口布置允许相邻侧壁开口之间的距离增加，因此，TOSA可以通过提供用于执行TO罐激光器封装的后连接对准的附加空间来增加光功率和产量。

公开(公告)号：US20220091350A1

公开(公告)日：2022-03-24

申请号：US17031362

申请日：2020-09-24

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  John CHENG ,  Ziliang CAI

IPC: G02B6/42 ,  H01R13/66 ,  H01R13/629

Abstract: In general, the present disclosure is directed to locking arrangements for use with optical subassembly housings, such as small form-factor pluggable (SFFP) housings, that include a handle member configured to rotate about the housing to allow a user to select a target/desired orientation. Preferably, the locking arrangement couples to a pluggable housing that is configured to removably couple into a receptacle of an optical transceiver cage or other suitable enclosure. The locking arrangement further includes a handle member rotatably coupled to the pluggable housing, the handle member being configured to allow the pluggable housing to releasably lock within the receptacle. The handle member is also preferably configured to maintain a user-selected orientation such that the handle member remains at a given angle relative to the pluggable housing in the absence of a user-supplied force.