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.

公开(公告)号：US20210013696A1

公开(公告)日：2021-01-14

申请号：US16506587

申请日：2019-07-09

Applicant: Applied Optoelectronics, Inc.

Inventor： Chong WANG ,  Kai-Sheng LIN ,  YongXuan LIANG

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

Abstract: In general the present disclosure is directed to a temperature control device, e.g., a TEC, that includes a top plate with at least first and second contact pads to allow for a soldering process to attach optical components to the first contact pad without causing one or more layers of the second contact pad to reflow and solidify with an uneven mounting surface. Thus, optical components such as a focus lens can be mounted to the second contact pad via, for instance, thermal epoxy. This avoids the necessity of a submount to protect the focus lens from the relatively high heat introduced during a soldering process as well as maintain the flatness of the second contact pad within tolerance so that the mounted focus lens optically aligns by virtue of its physical location/orientation with other associated optical components coupled to the first contact pad, e.g., a laser diode.

公开(公告)号：US20180210156A1

公开(公告)日：2018-07-26

申请号：US15413514

申请日：2017-01-24

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng LIN ,  YongXuan LIANG ,  Justin LII

IPC: G02B6/42 ,  H04B10/40 ,  H04B10/60

CPC classification number: G02B6/4263 ,  G02B6/4251 ,  G02B6/4274 ,  H04B10/40 ,  H04B10/66 ,  H04B10/69

Abstract: A photodiode package is disclosed that includes a TO-Can style body with an exposed sensor cavity that eliminates the necessity of an encapsulant dispensing process. The TO-Can body of the photodiode package includes an integrated coupling member to allow for coupling to a ROSA housing without an intermediate member. The photodiode package includes a base portion with a cylindrical wall portion that extends therefrom to form an optical coupling cavity. A surface of the base portion provides at least one mounting surface within the optical coupling cavity for coupling to a photodiode chip. The cylindrical wall may function as an integrated coupling member and may be used to directly couple the photodiode package, e.g., without an intermediate cap/ring, into a socket of a ROSA housing. The base portion and cylindrical wall may be formed from a single piece of material, or from multiple pieces depending on a desired configuration.

公开(公告)号：US20170359125A1

公开(公告)日：2017-12-14

申请号：US15176382

申请日：2016-06-08

Applicant: Applied Optoelectronics, Inc.

Inventor： I-Lung HO ,  YongXuan LIANG ,  Stella Liang CHEN

IPC: H04B10/40 ,  H04B10/66 ,  H04B10/572 ,  H04B10/50 ,  H04J14/02

CPC classification number: H04B10/40 ,  G02B6/4215 ,  G02B6/4231 ,  G02B6/4256 ,  G02B6/43 ,  H04B10/503 ,  H04B10/506 ,  H04B10/572 ,  H04B10/66 ,  H04J14/02 ,  H04J14/0256

Abstract: A multi-channel optical transmitter or transceiver includes transmitter optical subassembly (TOSA) modules optically coupled to and directly aligned with mux input ports of an optical multiplexer without using optical fibers. The optical multiplexer may include an arrayed waveguide grating (AWG) or a reversed planar lightwave circuit (PLC) splitter and may be located in a multiplexer housing having at least one side wall with input apertures aligned with the mux input ports. The TOSA modules may include a base supporting at least a laser, laser driving circuitry, and a lens for focusing the light output from the laser. Z-rings may be used to facilitate alignment and to mount the TOSA bases to the side wall of the multiplexer housing, for example, by laser welding.

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：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.