公开(公告)号：US20210066885A1

公开(公告)日：2021-03-04

申请号：US16555506

申请日：2019-08-29

Applicant: Analog Devices, Inc.

Inventor： Shawn S. Kuo ,  Ronald A. Kapusta ,  Xu Tang ,  Leonard Shtargot ,  Eugene L. Cheung ,  Jonathan Paolucci

IPC: H01S5/042 ,  H01S5/068 ,  H01S5/026 ,  H01S5/06 ,  H02M3/08

Abstract: Techniques to achieve higher power/shorter pulses with a laser diode. By initially applying a static reverse bias across the laser diode, the laser diode can turn on at a larger inductor current. When the laser diode is initially reverse biased, depletion charge and diffusion charge can be populated before the laser diode will lase. This causes the laser diode to initially turn on at a larger inductor current, which will reduce the rise time, thereby achieving higher power/shorter pulses.

公开(公告)号：US11075502B2

公开(公告)日：2021-07-27

申请号：US16555506

申请日：2019-08-29

Applicant: Analog Devices, Inc.

Inventor： Shawn S. Kuo ,  Ronald A. Kapusta ,  Xu Tang ,  Leonard Shtargot ,  Eugene L. Cheung ,  Jonathan Paolucci

IPC: H01S5/042 ,  H01S5/068 ,  H01S5/06 ,  H02M3/08 ,  H01S5/026 ,  H01S5/0625

Abstract: Techniques to achieve higher power/shorter pulses with a laser diode. By initially applying a static reverse bias across the laser diode, the laser diode can turn on at a larger inductor current. When the laser diode is initially reverse biased, depletion charge and diffusion charge can be populated before the laser diode will lase. This causes the laser diode to initially turn on at a larger inductor current, which will reduce the rise time, thereby achieving higher power/shorter pulses.

公开(公告)号：US10732265B1

公开(公告)日：2020-08-04

申请号：US16382042

申请日：2019-04-11

Applicant: Analog Devices, Inc.

Inventor： Krishnan Ramaswamy Parameswaran ,  Xu Tang ,  Ying-Ju Wang ,  Weidong Wang ,  David Bolognia ,  Scott Robert Davis ,  Christophe Antoine ,  Brian Hall

IPC: G01S7/481 ,  H01S5/022 ,  G02F1/295 ,  H01S5/00 ,  H01S5/024 ,  G02B26/08 ,  H01S3/23

Abstract: An optical illuminator assembly such as an integrated module can provide an illumination source for use in applications such as optical detection. A peak output power of the module can be enhanced as compared to other approaches, such as by one or more of controlling parasitic effects along an electrical pathway used to drive an optical emitter circuit included as a portion of the module, or by providing thermal management including establishing thermal conduction pathways through opposite surfaces of an optical emitter circuit such as an integrated circuit die comprising a solid-state optical emitter. Control schemes can be used that power various cells or functional blocks of the optical emitter independently. Thermal regulation can be provided by an active heat transfer element such as a thermoelectric cooler (TEC). An optical illuminator assembly can be optically coupled to a beam-steering device or other elements, such as using a self-aligning mechanical configuration.