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 PDFInfo
- 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
Links
- 230000003287 optical effect Effects 0.000 title 1
Classifications
-
- 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
- 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)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computer Networks & Wireless Communication (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Semiconductor Lasers (AREA)
- Plasma & Fusion (AREA)
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 (en) |
JP (1) | JP2022518434A (en) |
KR (1) | KR20210126604A (en) |
CN (1) | CN113632328A (en) |
WO (1) | WO2020150537A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117559208A (en) * | 2024-01-11 | 2024-02-13 | 北京盛镭科技有限公司 | Power amplifier of master oscillator and master oscillator |
Citations (2)
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)
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 |
-
2020
- 2020-01-16 EP EP20740958.2A patent/EP3912235A4/en active Pending
- 2020-01-16 CN CN202080009745.8A patent/CN113632328A/en active Pending
- 2020-01-16 KR KR1020217025780A patent/KR20210126604A/en unknown
- 2020-01-16 JP JP2021541071A patent/JP2022518434A/en active Pending
- 2020-01-16 WO PCT/US2020/013967 patent/WO2020150537A1/en unknown
Patent Citations (2)
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)
Title |
---|
See also references of WO2020150537A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP3912235A1 (en) | 2021-11-24 |
CN113632328A (en) | 2021-11-09 |
JP2022518434A (en) | 2022-03-15 |
KR20210126604A (en) | 2021-10-20 |
WO2020150537A1 (en) | 2020-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20210813 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
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. |