CN105896280A - 320nm, 660nm and 1500nm three-wavelength fiber output laser for Internet of Things - Google Patents

Abstract

The invention relates to a 320nm, 660nm and 1500nm three-wavelength fiber output laser for Internet of Things. A four-wave mixing periodically polarized lithium niobate laser resonator is arranged, a 1500nm beam-splitting fiber ring is arranged at the tail section of a 1500nm laser output fiber to form one path of 1500nm laser output by splitting, a 660nm beam-splitting fiber ring is arranged at the tail section of a 660nm laser output fiber to form one path of 660nm laser output by splitting, 320nm signal light, 1500nm idler light, 1064nm pump light I and 660nm pump light II are input to the 320nm four-wave mixing periodically polarized lithium niobate laser resonator to generate a four-wave mixing effect and generate output of 320nm signal light, and finally, 320nm, 660nm and 1500nm three-wavelength fiber laser is output.

Description

A kind of Internet of Things 320nm, 660nm, 1500nm tri-long wavelength fiber output laser

Technical field: laser instrument and applied technical field.

Technical background:

320nm, 660nm, 1500nm tri-wavelength laser, be for Internet of Things spectral detection, lasing light emitter, The laser of the application such as instrumental analysis, it can pass 320nm, 660nm, 1500nm tri-ripple as Internet of Things optical fiber The application light source such as the analysis detection of long sensor, it is additionally operable to laser and the optoelectronic areas such as Internet of Things optical communication； Optical fiber laser is as the representative of third generation laser technology, and have glass optical fiber low cost of manufacture and optical fiber can Rao Xing, glass material have an extremely low bulk area ratio, rapid heat dissipation, be lost low more high with conversion efficiency excellent Point, range of application constantly expands.

Summary of the invention:

A kind of Internet of Things 320nm, 660nm, 1500nm tri-long wavelength fiber output laser, arranges four ripples and mixes The periodically poled lithium niobate laserresonator of frequency, arranges 1500nm at 1500nm laser output optical fibre rear and divides Bundle fiber turns, beam splitting one road 1500nm laser exports, arranges 660nm at 660nm laser output optical fibre rear Splitting optical fiber circle, beam splitting one road 660nm exports, flashlight 320nm, ideler frequency light 1500nm, pump light I 1064nm and pump light II 660nm enters 320nm four-wave mixing periodically poled lithium niobate laserresonator, sends out Raw four-wave mixing effect, produces flashlight 320nm output, finally exports 320nm, 660nm, 1500nm tri- Long wavelength fiber laser exports.

Scheme one, 320nmmmm tetra-long wavelength fiber laser structure.

Arrange flashlight 320nm, ideler frequency light 1500nm, pump light I 1064nm occur with pump light II 660nm The structure of the periodically poled lithium niobate laserresonator 38 of four-wave mixing, sets gradually three wavelength from its input Input mirror 39,320nm four-wave mixing periodically poled lithium niobate laser crystal 40,320nm outgoing mirror 41,320nm Focusing on output coupling mirror 42,320nm focuses on output coupling mirror 42 coupling and accesses 320nm output optical fibre 43.

Scheme two, it is respectively provided with 1500nm, 660nm laser beam splitter fiber turns

At 1500nm laser output optical fibre rear, 1500nm splitting optical fiber circle, beam splitting one road 1500nm laser are set Output, arranges 660nm splitting optical fiber circle at 660nm laser output optical fibre rear, and beam splitting one road 660nm exports.

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, sets gradually from its input: 3-stage optical fiber input mirror, 1064nm parametric oscillation basic frequency laser crystal, parametric oscillation input mirror, 1500nm week The 1500nm of phase poled lithium niobate laser crystal, 1500nm outgoing mirror and outfan focuses on output coupling mirror, Thus constitute 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber.

Scheme four, 660nm laserresonator is set

660nm laserresonator is set, sets gradually from its input: two grades of inputs mirror, 660nm fundamental frequencies Laser crystal, 660nm frequency-doubling crystal, 660nm outgoing mirror 21 focus on output coupling mirror with the 660nm of outfan, Thus constitute 660nm laserresonator.

Scheme five, 1064nm resonator cavity is set

1064nm resonator cavity is set, 1064nm resonator cavity is set, set gradually from its input: one-level is defeated The 1064nm entering mirror, 1064nm laser crystal, 1064nm outgoing mirror 11 and outfan focuses on output coupling mirror, Thus constitute 1064nm resonator cavity.

Scheme six, 3-stage optical fiber structure is set

Arranging 3-stage optical fiber structure, 3-stage optical fiber structure is by one-level fiber turns, secondary light fibre circle and 3-stage optical fiber Circle is integrally connected and forms, and one-level fiber turns is connected on semiconductor module by 808nm pumping coupler, and half Conductor module is powered by semiconductor module block power supply, and above-mentioned whole optical elements are all arranged on optical rail and ray machine On tool, optical rail and light facility arrange fan 3.

Scheme seven, work process

Semiconductor module block power supply supplies electricity to semiconductor module and powers, and semiconductor module launches 808nm laser warp 808nm pumping coupler is coupled into one-level fiber turns, hence into the secondary light fibre circle of 3-stage optical fiber structure With 3-stage optical fiber circle, 808nm laser obtains gain in 3-stage optical fiber structure, draws from by 3-stage optical fiber circle 3-stage optical fiber outfan, it is humorous that input 808nm laser enters the vibration of 1500nm periodically poled lithium niobate laser parameter Shake chamber, through the 1064nm parametric oscillation fundamental frequency in 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber The 1064nm laser that laser crystal generates goes pump optical parametric oscillation to generate 1500nm laser, through 1500nm Outgoing mirror enters frequency multiplication output 1500nm laser, focuses on output coupling mirror output through 1500nm, thus constitutes 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber., focus on output coupling mirror coupling through 1500nm In 1500nm output optical fibre, by its input 1500nm laser to three wavelength parameter bonders；From by two Level fiber turns draws secondary light fibre outfan, and input 808nm laser enters 660nm laserresonator, through 660nm The 1319nm basic frequency laser crystal of laserresonator generates 1319nm fundamental frequency and occurs again through 660nm frequency-doubling crystal Frequency output 660nm laser, focuses on output coupling mirror through 660nm and is coupled in 660nm output optical fibre, by it Input 660nm laser is in three wavelength parameter bonders；One-level fiber-optic output is drawn from by one-level fiber turns, Input 808nm laser enters 1064nm resonator cavity, and 1064nm resonator cavity generates 1064nm basic frequency laser, warp 1064nm focuses on output coupling mirror and is coupled in 1064nm output optical fibre, by its input 1064nm laser to three In wavelength parameter bonder；Thus, 1500nm laser, 1064nm laser and 660nm laser are joined through three wavelength Amount bonder is coupled into 320nm four-wave mixing periodically poled lithium niobate laserresonator, flashlight 320nm, There is four-wave mixing effect with pump light II 660nm in ideler frequency light 1500nm, pump light I 1064nm, makes signal Light 320nm occurs, gain, and it is defeated that flashlight 320nm is coupled to 320nm through 320nm focusing output coupling mirror Go out optical fiber, output 320nm laser output, 1500nm beam splitting light is set at 1500nm laser output optical fibre rear Fine circle, beam splitting one road 1500nm laser exports, arranges 660nm beam splitting at 660nm laser output optical fibre rear Fiber turns, beam splitting one road 660nm exports, and finally exports 320nm, 660nm, 1500nm tri-long wavelength fibers sharp Light exports.

The core content of the present invention:

A kind of Internet of Things 320nm, 660nm, 1500nm tri-long wavelength fiber output laser, at 1500nm Laser output optical fibre rear arranges 1500nm splitting optical fiber circle, and beam splitting one road 1500nm laser exports, at 660nm Laser output optical fibre rear arranges 660nm splitting optical fiber circle, and beam splitting one road 660nm exports, and arranges flashlight The cycle of four-wave mixing is there is in 320nm, ideler frequency light 1500nm, pump light I 1064nm with pump light II 660nm The structure of poled lithium niobate laserresonator, four-wave mixing generates 320nm optical-fiber laser and exports, composition 320nm, 660nm, 1500nm tri-long wavelength fiber output laser structure.

1500nm splitting optical fiber circle, beam splitting one road 1500nm laser exports, 660nm splitting optical fiber circle, beam splitting One road 660nm output, flashlight 320nm, ideler frequency light 1500nm, pump light I 1064nm and pump light II 660nm enters 320nm four-wave mixing periodically poled lithium niobate laserresonator, and four-wave mixing effect occurs, raw Become flashlight 320nm laser output, formed 320nm, 660nm, 1500nm tri-long wavelength fiber laser output.

Accompanying drawing illustrates:

Accompanying drawing is the structure chart of this patent, and accompanying drawing is wherein: 1, optical rail and light facility, 2, semiconductor module Block, 3, fan, 4,808nm 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, 10,1064nm laser crystal, 11,1064nm outgoing mirror, 12, focus on output coupling mirror, 13,1064nm output optical fibre, 14,1064nm Resonator cavity, 15, secondary light fibre circle, 16, secondary light fibre outfan, 17, secondary light fibre bonder, 18, 660nm focuses on output coupling mirror, and 19,660nm output optical fibre, 20,660nm frequency-doubling crystal, 21,660nm Outgoing mirror, 22,660nm basic frequency laser crystal, 23, two grades of input mirrors, 24,660nm laserresonator, 25,3-stage optical fiber circle, 26,1500nm output optical fibre, 27,1500nm focus on output coupling mirror, 28,1500nm Outgoing mirror, 29,1500nm periodically poled lithium niobate laser crystal, 30, parametric oscillation input mirror, 31,1064nm Parametric oscillation basic frequency laser crystal, 32,3-stage optical fiber input mirror, 33, three wavelength parameter bonders, 34, 3-stage optical fiber bonder, 35,1500nm periodically poled lithium niobate laser parameter oscillating tank chamber, 36, three grades Fiber-optic output, 37, three wavelength parameter coupling transmission optical fibers, 38, the period polarized niobic acid of 320nm four-wave mixing Lithium laserresonator, 39, three wavelength input mirrors, 40,320nm four-wave mixing periodically poled lithium niobate laser brilliant Body, 41,320nm outgoing mirror, 42,320nm focus on output coupling mirror, 43,320nm output optical fibre, 44, 320nm laser exports, 45,1500nm output optical fibre, 46,1500nm splitting optical fiber circle, 47,660nm defeated Go out optical fiber, 48,660nm splitting optical fiber circle, 49,3-stage optical fiber structure.

Detailed description of the invention:

320nm four-wave mixing periodically poled lithium niobate laserresonator 38 is set, 1500nm beam splitting light is set Fine circle 46, arranges 660nm splitting optical fiber circle 48, arrange flashlight 320nm, ideler frequency light 1500nm, There is the periodically poled lithium niobate laserresonator of four-wave mixing in pump light I 1064nm and pump light II 660nm The structure of 38, arranges 320nm at 320nm four-wave mixing periodically poled lithium niobate laserresonator 38 outfan Focus on output coupling mirror 42 coupling and access 320nm output optical fibre 43, at 1500nm laser output optical fibre 26 tail Section arranges 1500nm splitting optical fiber circle 46, and beam splitting one road 1500nm laser exports, and exports at 660nm laser Optical fiber 19 rear arranges 660nm splitting optical fiber circle 48, and beam splitting one road 660nm exports, ideler frequency light 1500nm, Pump light I 1064nm and pump light II 660nm with derive from three wavelength parameter coupling transmission optical fibers 37, three ripples Three wavelength parameter bonders 33 are set before long parameter coupling transmission optical fiber 37, by 1064nm output optical fibre 13,660nm output optical fibre 19 couples access three wavelength parameter bonders 33 with 1500nm output optical fibre 26, 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35,1500nm periodically poled lithium niobate are set Laser parameter oscillating tank chamber 35 focuses on output coupling mirror 27 by the 1500nm of its outfan and is linked into In 1500nm output optical fibre 26, the input in 1500nm periodically poled lithium niobate laser parameter oscillating tank chamber 35 End is connected on 3-stage optical fiber outfan 36 by 3-stage optical fiber bonder 34, and 3-stage optical fiber outfan 36 is by three The 3-stage optical fiber circle 25 of level optical fiber structure 49 is drawn；The period polarized of flashlight 320nm four-wave mixing is set The structure of Lithium metaniobate laserresonator 38, sets gradually three wavelength input mirror 39,320nm tetra-from its input Wave mixing periodically poled lithium niobate laser crystal 40,320nm outgoing mirror 41,320nm focus on output coupling mirror 42,320nm focus on output coupling mirror 42 coupling accesses 320nm output optical fibre 43, arranges 660nm laser humorous Shake chamber 24, and 660nm laserresonator 24 focuses on output coupling mirror 18 by the 660nm of its outfan and accesses In 660nm output optical fibre 19, the 660nm laserresonator 24 secondary light fibre bonder by its input 17 are connected on secondary light fibre outfan 16, and secondary light fibre outfan 16 is from the secondary light of 3-stage optical fiber structure 49 Draw on fine circle 15；Arranging 1064nm resonator cavity 14, the outfan of 1064nm resonator cavity 14 passes through 1064nm Focusing on output coupling mirror 12 to be linked in 1064nm output optical fibre 13,1064nm resonator cavity 14 is defeated by it The one-level fiber coupler 8 entering end is connected on one-level fiber-optic output 7, and one-level fiber-optic output 7 is by three grades The one-level fiber turns 6 of optical fiber structure 49 is drawn；The vibration of 1500nm periodically poled lithium niobate laser parameter is set Resonator cavity 35, sets gradually from its input: 3-stage optical fiber input mirror 32,1064nm parametric oscillation fundamental frequency Laser crystal 31, parametric oscillation input mirror 30,1500nm periodically poled lithium niobate laser crystal 29,1500nm Outgoing mirror 28, the 1500nm of outfan focus on output coupling mirror 27, thus constitute the period polarized niobium of 1500nm Acid lithium laser parameter oscillating tank chamber 35；660nm laserresonator 24 is set, sets successively from its input Put: two grades of inputs mirror 23,1319nm basic frequency laser crystal 22,1319nm outgoing mirror 21,660nm frequencys multiplication Crystal 20 focuses on output coupling mirror 18 with the 660nm of outfan, thus constitutes 660nm laserresonator 24； 1064nm resonator cavity 14 is set, sets gradually from its input: one-level input mirror 9,1064nm laser are brilliant Body 10,1064nm outgoing mirror 11 focus on output coupling mirror 12 with the 1064nm of outfan, thus constitute 1064nm Resonator cavity 14, arranges 3-stage optical fiber structure 49, and 3-stage optical fiber structure 49 is fine by one-level fiber turns 6, secondary light Circle 15 is integrally connected with 3-stage optical fiber circle 25 and to form, and one-level fiber turns 6 passes through 808nm pumping coupler 4 Being connected on semiconductor module 2, semiconductor module 2 is powered by semiconductor module block power supply 5, above-mentioned whole light Learn element to be all arranged on optical rail and light facility 1, optical rail and light facility 1 arrange fan 3, Totally constitute 320nm, 660nm, 1500nm tri-long wavelength fiber output laser structure.

Work process:

Semiconductor module block power supply 5 supplies electricity to semiconductor module 2 and powers, and semiconductor module 2 is launched 808nm and swashed Light is coupled into one-level fiber turns 6 through 808nm pumping coupler 4, hence into 3-stage optical fiber structure 49 Secondary light fibre circle 15 and 3-stage optical fiber circle 25,808nm laser obtains gain in 3-stage optical fiber structure 49, Drawing 3-stage optical fiber outfan 36 from by 3-stage optical fiber circle 25, input 808nm laser enters the 1500nm cycle Poled lithium niobate laser parameter oscillating tank chamber 35, humorous through the vibration of 1500nm periodically poled lithium niobate laser parameter Shake chamber 35 1064nm parametric oscillation basic frequency laser crystal 31 generate 1064nm laser go pump optical to join Amount vibration generates 1500nm laser, exports 1500nm laser through frequency multiplication, focuses on output coupling mirror through 1500nm 27 are coupled in 1500nm output optical fibre 26, by its input 1500nm laser to three wavelength parameter bonders In 33；Drawing secondary light fibre outfan 16 from by secondary light fibre circle 15, input 808nm laser enters 660nm Laserresonator 24, generates 1319nm through the 1319nm basic frequency laser crystal 22 of 660nm laserresonator 24 Fundamental frequency occurs frequency multiplication to export 660nm laser through 660nm frequency-doubling crystal 20, focuses on output coupling mirror through 660nm 18 are coupled in 660nm output optical fibre 19, by its input 660nm laser to three wavelength parameter bonders 33 In；Drawing one-level fiber-optic output 7 from by one-level fiber turns 6, it is humorous that input 808nm laser enters 1064nm Shake chamber 14, and 1064nm resonator cavity 14 generates 1064nm basic frequency laser, focuses on output coupling mirror through 1064nm 12 are coupled in 1064nm output optical fibre 13, by its input 1064nm laser to three wavelength parameter bonders In 33；Thus, 1500nm laser, 1064nm laser and 660nm laser are through three wavelength parameter bonders 33 It is coupled into 320nm four-wave mixing periodically poled lithium niobate laserresonator 38, flashlight 320nm, ideler frequency There is four-wave mixing effect with pump light II 660nm in light 1500nm, pump light I 1064nm, makes flashlight 320nm occurs, gain, and flashlight 320nm focuses on output coupling mirror 42 through 320nm and exports light with 320nm Fine 43 output 320nm laser outputs 44, arrange 1500nm at 1500nm laser output optical fibre 27 rear and divide Bundle fiber turns 46, beam splitting one road 1500nm laser exports, and arranges at 1064nm laser output optical fibre 13 rear The 1064nm laser output of beam splitting one road, arranges 660nm beam splitting light at 660nm laser output optical fibre 19 rear Fine circle 48, beam splitting one road 660nm exports.

Claims (2)

1. Internet of Things 320nm, 660nm, 1500nm tri-long wavelength fiber output laser, it is special Levy for, at 1500nm laser output optical fibre rear, 1500nm splitting optical fiber circle, beam splitting one road 1500nm are set Laser exports, and arranges 660nm splitting optical fiber circle, beam splitting one road 660nm at 660nm laser output optical fibre rear Output, arranges flashlight 320nm, ideler frequency light 1500nm, pump light I 1064nm and pump light II 660nm The structure of the periodically poled lithium niobate laserresonator of four-wave mixing occurs, and four-wave mixing generates 320nm optical fiber Laser exports, and constitutes 320nm, 660nm, 1500nm tri-long wavelength fiber output laser structure.

A kind of Internet of Things 320nm, 660nm, 1500nm the most according to claim 1 tri-long wavelength fiber Output laser, is characterized by, 1500nm splitting optical fiber circle, and beam splitting one road 1500nm laser exports, 660nm Splitting optical fiber circle, beam splitting one road 660nm exports, flashlight 320nm, ideler frequency light 1500nm, pump light I 1064nm and pump light II 660nm enters 320nm four-wave mixing periodically poled lithium niobate laserresonator, sends out Raw four-wave mixing effect, generates the output of flashlight 320nm laser, forms 320nm, 660nm, 1500nm tri- Long wavelength fiber laser exports.