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：US09977200B2

公开(公告)日：2018-05-22

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 ,  G02B27/10 ,  G02B7/00

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：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：US09915560B2

公开(公告)日：2018-03-13

申请号：US14838017

申请日：2015-08-27

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung Ho ,  Kai-Sheng Lin ,  Jun Zheng

IPC: G01J1/02 ,  G02B6/42 ,  G02B6/43 ,  G02B6/293 ,  G01J1/04

CPC classification number: G01J1/0271 ,  G01J1/029 ,  G01J1/0403 ,  G02B6/29365 ,  G02B6/2938 ,  G02B6/4214 ,  G02B6/4246 ,  G02B6/4263 ,  G02B6/4284 ,  G02B6/4292 ,  G02B6/4295 ,  G02B6/43

Abstract: A multi-channel receiver optical subassembly (ROSA) including at least one sidewall receptacle configured to receive and electrically isolate an adjacent multi-channel transmitter optical subassembly (TOSA) is disclosed. The multi-channel ROSA includes a housing with at least first and second sidewalls, with the first sidewall being opposite the second sidewall and including at least one sidewall opening configured to fixedly attach to photodiode assemblies. The second sidewall includes at least one sidewall receptacle configured to receive at least a portion of an optical component package, such as a transistor outline (TO) can laser package, of an adjacent multi-channel TOSA, and provide electrical isolation between the ROSA housing and the TOSA within an optical transceiver. The sidewall receptacle can include non-conductive material in regions that directly or otherwise come into close proximity with the optical component package of the adjacent TOSA.

公开(公告)号：US20180052291A1

公开(公告)日：2018-02-22

申请号：US15242017

申请日：2016-08-19

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  Hsiu-Che WANG ,  I-Lung HO

IPC: G02B6/42

CPC classification number: G02B6/4256 ,  G02B6/4246 ,  G02B6/4277 ,  G02B6/4281 ,  G02B6/4292

Abstract: A transceiver module having a partitioned housing, e.g., a bifurcated or multi-segment housing, is disclosed that allows coupling and alignment of a TOSA arrangement and ROSA arrangement in separate respective portions in order to minimize or otherwise reduce component damage and rework iterations during manufacturing and repair. Technicians may thus perform at least partial assembly and testing of each optical subassembly arrangement in parallel and in relative isolation without necessarily interrupting and/or waiting on completion of the other. In a general sense, each separate portion of the partitioned housing provides a dedicated workspace of about equal dimension for coupling of subassembly components. Each separate portion may lie flat on a tabletop, for instance, which may further simplify manufacturing processes and provide a wide-range of acceptance angles for performing soldering, welding, insertion and coupling of components, visual inspection, fiber routing, and so on.

公开(公告)号：US20180052289A1

公开(公告)日：2018-02-22

申请号：US15242005

申请日：2016-08-19

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  Ziliang CAI ,  Stella Liang CHEN

IPC: G02B6/42 ,  G02B6/293 ,  G02B6/12

CPC classification number: G02B6/421 ,  G02B6/12019 ,  G02B6/29329 ,  G02B6/2938 ,  G02B6/4246 ,  G02B6/4281 ,  G02B6/4292

Abstract: Techniques for reducing optical fiber bending loss in an optical transceiver are disclosed. In an embodiment, a small form-factor (SFF) optical transceiver housing includes a demultiplexer device, such as an arrayed waveguide grating (AWG) device, having a longitudinal center line that is offset laterally by a distance Doffset from the longitudinal center line of the SFF optical transceiver housing. The lateral offset distance Doffset may advantageously enable an intermediate optical fiber coupling the demultiplexer with an optical coupling receptacle, such as an LC connector, to be routed within the SFF optical transceiver housing in a manner that avoids introducing bends that are less than a minimum bending radius associated with the intermediate optical fiber cable. Thus some embodiments of the present disclosure enable greater tolerance when routing an intermediate optical fiber within housings that would otherwise introduce bending loss by virtue of their constrained dimensions.

公开(公告)号：US20170359126A1

公开(公告)日：2017-12-14

申请号：US15176404

申请日：2016-06-08

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung HO ,  Hsiu-Che WANG ,  YongXuan LIANG

IPC: H04B10/40 ,  G02B6/42 ,  H04B10/572 ,  G02B6/293 ,  H04B10/50 ,  H04B10/2581 ,  H04B10/66

CPC classification number: H04B10/40 ,  G02B6/2938 ,  G02B6/4215 ,  G02B6/4246 ,  H04B10/506 ,  H04J14/0256

Abstract: A multi-channel optical transmitter or transceiver uses a reversed planar lightwave circuit (PLC) splitter as an optical multiplexer to combine optical signals at different channel wavelengths into a multiplexed optical signal. The reversed PLC splitter includes splitter output ports that are used as the mux input ports and a splitter input port that is used as the mux output port. The mux input ports may be optically coupled to respective transmitter optical subassembly (TOSA) modules with or without optical fibers. The PLC splitter includes wavelength independent branched waveguides that combine the optical signals received on the mux input ports into the multiplexed optical signal on the mux output port.

公开(公告)号：US09768585B2

公开(公告)日：2017-09-19

申请号：US14661772

申请日：2015-03-18

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Stefan Murry ,  Klaus Alexander Anselm

IPC: H01S5/06 ,  H01S3/10 ,  H01S3/08 ,  H01S5/0625 ,  H01S5/0687 ,  H01S5/028 ,  H01S5/024 ,  H01S5/40 ,  H01S5/12

CPC classification number: H01S5/06256 ,  H01S5/02415 ,  H01S5/0287 ,  H01S5/06258 ,  H01S5/0687 ,  H01S5/124 ,  H01S5/4012 ,  H01S5/4087

Abstract: A parallel cavity tunable laser generally includes a semiconductor laser body defining a plurality of parallel laser cavities with a common output. Each of the parallel laser cavities is configured to be driven independently to generate laser light at a wavelength within a different respective wavelength range. The wavelength of the light generated in each of the laser cavities may be tuned, in response to a temperature change, to a channel wavelength within the respective wavelength range. The laser light generated in each selected one of the laser cavities is emitted from the common output at a front facet of the laser body. By selectively generating light in one or more of the laser cavities, one or more channel wavelengths may be selected for lasing and transmission.

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.