EP3912235A4 - PULSED OPTICAL TRANSMITTER WITH IMPROVED PULSE SHAPE AND REDUCED FREQUENCY CHIRP - Google Patents

PULSED OPTICAL TRANSMITTER WITH IMPROVED PULSE SHAPE AND REDUCED FREQUENCY CHIRP Download PDF

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Publication number
EP3912235A4
EP3912235A4 EP20740958.2A EP20740958A EP3912235A4 EP 3912235 A4 EP3912235 A4 EP 3912235A4 EP 20740958 A EP20740958 A EP 20740958A EP 3912235 A4 EP3912235 A4 EP 3912235A4
Authority
EP
European Patent Office
Prior art keywords
optical transmitter
pulse shape
reduced frequency
pulsed optical
frequency chirp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20740958.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3912235A1 (en
Inventor
Jiaxi Kan
Bouchaib Hraimel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
O-Net Communications (usa) Inc
O Net Technologies Shenzhen Group Co Ltd
Original Assignee
O Net Communications Shenzhen Ltd
O Net Communications Usa Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by O Net Communications Shenzhen Ltd, O Net Communications Usa Inc filed Critical O Net Communications Shenzhen Ltd
Publication of EP3912235A1 publication Critical patent/EP3912235A1/en
Publication of EP3912235A4 publication Critical patent/EP3912235A4/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2383—Parallel arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/483—Details of pulse systems
    • G01S7/484—Transmitters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/11—Mode locking; Q-switching; Other giant-pulse techniques, e.g. cavity dumping
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
    • H01S5/042—Electrical excitation ; Circuits therefor
    • H01S5/0428—Electrical excitation ; Circuits therefor for applying pulses to the laser
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
    • H01S5/06216—Pulse modulation or generation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Semiconductor Lasers (AREA)
EP20740958.2A 2019-01-16 2020-01-16 PULSED OPTICAL TRANSMITTER WITH IMPROVED PULSE SHAPE AND REDUCED FREQUENCY CHIRP Pending EP3912235A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962793069P 2019-01-16 2019-01-16
PCT/US2020/013967 WO2020150537A1 (en) 2019-01-16 2020-01-16 Pulsed optical transmitter with improved pulse shape and reduced frequency chirp

Publications (2)

Publication Number Publication Date
EP3912235A1 EP3912235A1 (en) 2021-11-24
EP3912235A4 true EP3912235A4 (en) 2022-10-19

Family

ID=71613456

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20740958.2A Pending EP3912235A4 (en) 2019-01-16 2020-01-16 PULSED OPTICAL TRANSMITTER WITH IMPROVED PULSE SHAPE AND REDUCED FREQUENCY CHIRP

Country Status (5)

Country Link
EP (1) EP3912235A4 (zh)
JP (1) JP2022518434A (zh)
KR (1) KR20210126604A (zh)
CN (1) CN113632328A (zh)
WO (1) WO2020150537A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117559208A (zh) * 2024-01-11 2024-02-13 北京盛镭科技有限公司 一种主振荡器和主控振荡器的功率放大器

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140185643A1 (en) * 2012-12-31 2014-07-03 Nlight Photonics Corporation Pulsed bias current for gain switched semiconductor lasers for amplified spontaneous emission reduction
US20140300952A1 (en) * 2009-06-30 2014-10-09 Trimble Ab Optical pulse transmitter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6950118B2 (en) * 2003-01-30 2005-09-27 Hewlett-Packard Development Company, L.P. Laser imaging device including a pulse width modulator system
US7030900B2 (en) * 2003-07-11 2006-04-18 Kabushiki Kaisha Toshiba Beam scanning apparatus and image forming apparatus using the same
US8787415B1 (en) * 2010-06-11 2014-07-22 Ixys Corporation Bias current control of laser diode instrument to reduce power consumption of the instrument

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140300952A1 (en) * 2009-06-30 2014-10-09 Trimble Ab Optical pulse transmitter
US20140185643A1 (en) * 2012-12-31 2014-07-03 Nlight Photonics Corporation Pulsed bias current for gain switched semiconductor lasers for amplified spontaneous emission reduction

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020150537A1 *

Also Published As

Publication number Publication date
KR20210126604A (ko) 2021-10-20
JP2022518434A (ja) 2022-03-15
CN113632328A (zh) 2021-11-09
WO2020150537A1 (en) 2020-07-23
EP3912235A1 (en) 2021-11-24

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Owner name: O-NET COMMUNICATIONS (SHENZHEN) LIMITED

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: O-NET COMMUNICATIONS (SHENZHEN) LIMITED

Owner name: O-NET COMMUNICATIONS (USA) INC.

A4 Supplementary search report drawn up and despatched

Effective date: 20220920

RIC1 Information provided on ipc code assigned before grant

Ipc: H01S 5/062 20060101ALI20220914BHEP

Ipc: H01S 5/042 20060101ALI20220914BHEP

Ipc: G01S 7/484 20060101ALI20220914BHEP

Ipc: H01S 3/11 20060101ALI20220914BHEP

Ipc: H01S 3/23 20060101AFI20220914BHEP

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: O-NET TECHNOLOGIES (SHENZHEN) GROUP CO., LTD

Owner name: O-NET COMMUNICATIONS (USA) INC.