CN105529610A - 1,764- and 830-nanometer dual-wavelength optical fiber output laser for laser radar - Google Patents
1,764- and 830-nanometer dual-wavelength optical fiber output laser for laser radar Download PDFInfo
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- CN105529610A CN105529610A CN201510938420.9A CN201510938420A CN105529610A CN 105529610 A CN105529610 A CN 105529610A CN 201510938420 A CN201510938420 A CN 201510938420A CN 105529610 A CN105529610 A CN 105529610A
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- 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
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
-
- 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
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
In a 1,764- and 830-nanometer dual-wavelength optical fiber output laser for a laser radar, a 830-nanometer beam splitting optical fiber ring is arranged at a tail segment of a 830-nanometer laser output optical fiber, a path of 830-nanometer light is split, 1,764-nanometer signal light, 830-nanometer idler frequency light, 1,500-nanomter pumping light I and 905-nanometer pumping light II enter a 1,764-nanometer four-wave mixing periodically poled lithium niobate laser resonant cavity to generate a four-wave mixing effect and generate the 1,764-nanometer signal light to be output, and finally, the 1,764- and 830-nanometer dual-wavelength optical fiber output is output.
Description
Technical field: laser and applied technical field.
Technical background:
1764nm, 830nm dual-wavelength laser, the laser applied for laser radar spectral detection, lasing light emitter, instrumental analysis etc., it can be used as laser radar optical fiber and passes the using light sources such as the analyzing and testing of 1764nm, 830nm dual wavelength sensor, and it is also for laser and optoelectronic areas such as laser radar optical communications; Fiber laser is as the representative of third generation laser technology, and having mercy on property, the glass material with glass optical fiber low cost of manufacture and optical fiber have extremely low bulk area ratio, and rapid heat dissipation, loss are low with conversion efficiency comparatively advantages of higher, and range of application constantly expands.
Summary of the invention:
A kind of laser radar 1764nm, 830nm dual-wavelength optical-fiber output laser, at 830nm Laser output optical fiber rear, 830nm splitting optical fiber circle is set, beam splitting one road 830nm Laser output, flashlight 1764nm, ideler frequency light 830nm, pump light I1500nm and pump light II905nm enter 1764nm four wave mixing periodically poled lithium niobate laserresonator, there is four-wave mixing effect, produce flashlight 1764nm to export, finally export 1764nm, 830nm dual-wavelength optical-fiber Laser output.
Scheme one, 1764nm tetra-long wavelength fiber laser structure.
There is the structure of the periodically poled lithium niobate laserresonator 38 of four wave mixing in signalization light 1764nm, ideler frequency light 830nm, pump light I1500nm and pump light II905nm, arranges 1764nm focus on output coupling mirror coupling access 1764nm output optical fibre at 1764nm four wave mixing periodically poled lithium niobate laserresonator output.
Scheme two, 830nm laser beam splitter fiber turns is set
Arrange 830nm splitting optical fiber circle at 830nm Laser output optical fiber rear, beam splitting one road 830nm laser exports through 830nm laser output.
Scheme three, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber is set
1500nm periodically poled lithium niobate laser parameter oscillating tank chamber is set, set gradually from its input: the 1500nm of 3-stage optical fiber input mirror, parametric oscillation basic frequency laser crystal, parametric oscillation input mirror, 1500nm periodically poled lithium niobate laser crystal, 1500nm outgoing mirror and output focuses on output coupling mirror, forms 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber thus.
Scheme four, 905nm gain resonant cavity is set
905nm gain resonant cavity is set, sets gradually from its input: the 905nm of secondary input mirror, basic frequency laser crystal, 905nm gain crystal, 905nm outgoing mirror and output focuses on output coupling mirror, forms 905nm gain resonant cavity thus.
Scheme five, 830nm resonant cavity is set
830nm resonant cavity is set, 830nm resonant cavity is set, set gradually from its input: the 830nm of one-level input mirror, 830nm laser crystal, 830nm outgoing mirror and output focuses on output coupling mirror, forms 830nm resonant cavity thus.
Scheme six, 3-stage optical fiber structure is set
3-stage optical fiber structure is set, 3-stage optical fiber structure is integrally connected by one-level fiber turns, secondary fiber turns and 3-stage optical fiber circle and forms, one-level fiber turns is connected on semiconductor module by 905nm pumping coupler, semiconductor module is by semiconductor module Power supply, above-mentioned whole optical element is all arranged on optical rail and ray machine tool, and optical rail and ray machine tool arrange fan 3.
Core content of the present invention:
A kind of laser radar 1764nm, 830nm dual-wavelength optical-fiber output laser, at 830nm Laser output optical fiber rear, 830nm splitting optical fiber circle is set, beam splitting one road 830nm laser exports through 830nm laser output, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 1764nm, ideler frequency light 830nm, pump light I1500nm and pump light II905nm, four wave mixing generates 1764nm optical-fiber laser and exports, and forms 1764nm, 830nm dual-wavelength optical-fiber output laser structure.
Accompanying drawing illustrates:
Accompanying drawing is the structure chart of this patent, and accompanying drawing is wherein: 1, optical rail and ray machine tool, 2, semiconductor module, 3, fan, 4, 905nm pumping coupler, 5, semiconductor module block power supply, 6, one-level fiber turns, 7, one-level fiber-optic output, 8, one-level fiber coupler, 9, one-level input mirror, 10, 830nm laser crystal, 11, 830nm outgoing mirror, 12, focus on output coupling mirror, 13, 830nm output optical fibre, 14, 830nm resonant cavity, 15, secondary fiber turns, 16, secondary fiber-optic output, 17, secondary fiber coupler, 18, 905nm focuses on output coupling mirror, and 19, 905nm output optical fibre, 20, 905nm gain crystal, 21, 905nm outgoing mirror, 22, basic frequency laser crystal, 23, secondary input mirror, 24, 905nm gain resonant cavity, 25, 3-stage optical fiber circle, 26, 1500nm output optical fibre, 27, 1500nm focuses on output coupling mirror, and 28, 1500nm outgoing mirror, 29, 1500nm periodically poled lithium niobate laser crystal, 30, parametric oscillation input mirror, 31, 830nm parametric oscillation basic frequency laser crystal, 32, 3-stage optical fiber input mirror, 33, three-wavelength parameter coupler, 34, 3-stage optical fiber coupler, 35, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber, 36, 3-stage optical fiber output, 37, three-wavelength parameter coupling transmission optical fiber, 38, 1764nm four wave mixing periodically poled lithium niobate laserresonator, 39, three-wavelength input mirror, 40, 1764nm four wave mixing periodically poled lithium niobate laser crystal, 41, 1764nm outgoing mirror, 42, 1764nm focuses on output coupling mirror, and 43, 1764nm output optical fibre, 44, 1764nm Laser output, 45, 830nm Laser output optical fiber, 46, 3-stage optical fiber structure.
Embodiment:
1764nm four wave mixing periodically poled lithium niobate laserresonator 38 is set, 830nm splitting optical fiber circle is set, signalization light 1764nm, ideler frequency light 830nm, there is the structure of the periodically poled lithium niobate laserresonator 38 of four wave mixing in pump light I1500nm and pump light II905nm, 1764nm is set at 1764nm four wave mixing periodically poled lithium niobate laserresonator 38 output and focuses on output coupling mirror 42 coupling access 1764nm output optical fibre 43, at the rear of 830nm output optical fibre 13,830nm splitting optical fiber circle 47 is set, the 830nm laser output 45 of 830nm splitting optical fiber circle 47 is set, ideler frequency light 830nm, pump light I1500nm and pump light II905nm with derive from three-wavelength parameter coupling transmission optical fiber 37, three-wavelength parameter coupler 33 is set before three-wavelength parameter coupling transmission optical fiber 37, by 830nm output optical fibre 13, 905nm output optical fibre 19 is coupled with 1500nm output optical fibre 26 and accesses three-wavelength parameter coupler 33, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is set, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 focuses on output coupling mirror 27 by the 1500nm of its output and is linked in 1500nm output optical fibre 26, the input in 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is connected on 3-stage optical fiber output 36 by 3-stage optical fiber coupler 34, 3-stage optical fiber output 36 is drawn by the 3-stage optical fiber circle 25 of 3-stage optical fiber structure 46, 905nm gain resonant cavity 24 is set, 905nm gain resonant cavity 24 focuses on output coupling mirror 18 by the 905nm of its output and is linked in 905nm output optical fibre 19,905nm gain resonant cavity 24 is connected on secondary fiber-optic output 16 by the secondary fiber coupler 17 of its input, and secondary fiber-optic output 16 is drawn from the secondary fiber turns 15 of 3-stage optical fiber structure 46, 830nm resonant cavity 14 is set, the output of 830nm resonant cavity 14 focuses on output coupling mirror 12 by 830nm and is linked in 830nm output optical fibre 13,830nm resonant cavity 14 is connected on one-level fiber-optic output 7 by the one-level fiber coupler 8 of its input, and one-level fiber-optic output 7 is drawn by the one-level fiber turns 6 of 3-stage optical fiber structure 46, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 is set, set gradually from its input: 3-stage optical fiber input mirror 32,830nm parametric oscillation basic frequency laser crystal 31, parametric oscillation input mirror 30,1500nm periodically poled lithium niobate laser crystal 29,1500nm outgoing mirror 28 focus on output coupling mirror with the 1500nm of output, form 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 thus, 905nm gain resonant cavity 24 is set, set gradually from its input: secondary input mirror 23, basic frequency laser crystal 22,905nm gain crystal 20,905nm outgoing mirror 21 focus on output coupling mirror 18 with the 905nm of output, form 905nm gain resonant cavity 24 thus, 830nm resonant cavity 14 is set, set gradually from its input: one-level input mirror 9, 830nm laser crystal 10, 830nm outgoing mirror 11 focuses on output coupling mirror 12 with the 830nm of output, form 830nm resonant cavity 14 thus, 3-stage optical fiber structure 46 is set, 3-stage optical fiber structure 46 is by one-level fiber turns 6, secondary fiber turns 15 and 3-stage optical fiber circle 25 are integrally connected and form, one-level fiber turns 6 is connected on semiconductor module 2 by 905nm pumping coupler 4, semiconductor module 2 is powered by semiconductor module block power supply 5, above-mentioned whole optical element is all arranged on optical rail and ray machine tool 1, optical rail and ray machine tool 1 arrange fan 3, overall formation 1764nm, 830nm dual-wavelength optical-fiber output laser structure.
The course of work:
Semiconductor module block power supply 5 is powered and to be powered to semiconductor module 2, semiconductor module 2 is launched 905nm laser and is coupled into one-level fiber turns 6 through 905nm pumping coupler 4, thus enter secondary fiber turns 15 and the 3-stage optical fiber circle 25 of 3-stage optical fiber structure 46, 905nm laser obtains gain in 3-stage optical fiber structure 46, 3-stage optical fiber output 36 is drawn from by 3-stage optical fiber circle 25, input 905nm laser enters 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35, the 830nm laser that 830nm parametric oscillation basic frequency laser crystal 31 through 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 generates goes pump optical parametric oscillation to generate 1500nm laser, focusing on output coupling mirror 27 through 1500nm is coupled in 1500nm output optical fibre 26, by its input 1500nm laser in three-wavelength parameter coupler 33, secondary fiber-optic output 16 is drawn from by secondary fiber turns 15, input 905nm laser enters 905nm gain resonant cavity 24, basic frequency laser crystal 22 through 905nm gain resonant cavity 24 generates fundamental frequency light, through 905nm gain resonant cavity 24, gain output 905nm laser occurs, focusing on output coupling mirror 18 through 905nm is coupled in 905nm output optical fibre 19, by its input 905nm laser in three-wavelength parameter coupler 33, one-level fiber-optic output 7 is drawn from by one-level fiber turns 6, input 905nm laser enters 830nm resonant cavity 14,830nm resonant cavity 14 generates 830nm basic frequency laser, focusing on output coupling mirror 12 through 830nm is coupled in 830nm output optical fibre 13, by its input 830nm laser in three-wavelength parameter coupler 33, thus, 1500nm laser, 830nm laser and 905nm laser are coupled into 1764nm four wave mixing periodically poled lithium niobate laserresonator 38 through three-wavelength parameter coupler 33, flashlight 1764nm, ideler frequency light 830nm, there is four-wave mixing effect in pump light I1500nm and pump light II905nm, flashlight 1764nm is occurred, gain, flashlight 1764nm focuses on output coupling mirror 42 through 1764nm and exports 1764nm Laser output 44 with 1764nm output optical fibre 43, 830nm splitting optical fiber circle 45 beam splitting arranged at the rear of 830nm output optical fibre 13 exports 830nm laser, 830nm is exported through output.
Claims (1)
1. laser radar 1764nm, 830nm dual-wavelength optical-fiber output laser, it is characterized by, at 830nm Laser output optical fiber rear, 830nm splitting optical fiber circle is set, beam splitting one road 830nm laser exports through 830nm laser output, there is the structure of the periodically poled lithium niobate laserresonator of four wave mixing in signalization light 1764nm, ideler frequency light 830nm, pump light I1500nm and pump light II905nm, four wave mixing generates 1764nm optical-fiber laser and exports, and forms 1764nm, 830nm dual-wavelength optical-fiber output laser structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938420.9A CN105529610A (en) | 2015-12-14 | 2015-12-14 | 1,764- and 830-nanometer dual-wavelength optical fiber output laser for laser radar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510938420.9A CN105529610A (en) | 2015-12-14 | 2015-12-14 | 1,764- and 830-nanometer dual-wavelength optical fiber output laser for laser radar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105529610A true CN105529610A (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510938420.9A Pending CN105529610A (en) | 2015-12-14 | 2015-12-14 | 1,764- and 830-nanometer dual-wavelength optical fiber output laser for laser radar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105529610A (en) |
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2015
- 2015-12-14 CN CN201510938420.9A patent/CN105529610A/en active Pending
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160427 |
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| WD01 | Invention patent application deemed withdrawn after publication |