公开(公告)号：US10175431B2

公开(公告)日：2019-01-08

申请号：US15242005

申请日：2016-08-19

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  Ziliang Cai ,  Stella Liang Chen

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

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：US11474311B1

公开(公告)日：2022-10-18

申请号：US17331911

申请日：2021-05-27

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  Hao-Chiang Cheng ,  Ziliang Cai

IPC: G02B6/42 ,  H04J14/02 ,  H04B10/40

Abstract: A parabolic reflector device (also referred to herein as a parabolic lens device) is disclosed which includes a plurality of parabolic lens members and a mirror member which couple together and collectively provide a light-transmissive structure for multiplexing or demultiplexing of an optical signal. The parabolic reflector device can be implemented within optical subassembly modules to support operations of transmitter optical subassemblies (TOSAs) and/or receiver optical subassemblies (ROSAs).

公开(公告)号：US11320601B2

公开(公告)日：2022-05-03

申请号：US17031392

申请日：2020-09-24

Applicant: Applied Optoelectronics, Inc.

Inventor： Kai-Sheng Lin ,  John Cheng ,  Ziliang Cai

IPC: G02B6/38 ,  H04B10/40 ,  G02B6/42

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.

公开(公告)号：US10928600B2

公开(公告)日：2021-02-23

申请号：US16664202

申请日：2019-10-25

Applicant: Applied Optoelectronics, Inc.

Inventor： Kevin Liu ,  Kai-Sheng Lin ,  Ziliang Cai

IPC: G02B6/42 ,  H01S5/024

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.

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.

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

IPC: H01S5/042 ,  G02B6/42 ,  H01S5/40 ,  H01S5/022

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.