Tall brightness series is fiber-optic coupling semiconductor laser

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Since report of triumphant general Lin Guang rolled out much odder Guan Gaoliang to spend laser of fiber-optic coupling semiconductor 2009 oneself, devote oneself to the development of product of tall brightness series all the time, increase strength of research and development ceaselessly, product brightness and power all have rise significantly, develop 100 tile from original 20W, 30W. 1 foreword is fiber-optic coupling semiconductor laser with its bulk good, life grows quality of small, beam of light reach the advantage such as function stability to get applied extensively in each domain, basically regard laser of the pump riverside source of fiber-optic laser, solid as pump riverside source, also can apply at laser medical treatment directly, data processing if frit Fu, solder wait for a domain. Suffer fiber-optic laser to develop the effect of the trend to high power direction, semiconductor laser also develops in Xiang Gaogong rate, tall brightness, laser of tall brightness semiconductor has higher smooth power density, via closing bundle implement close bundle become high power likewise the pump Pu Yuan of fiber-optic laser ideal. At present structure of laser of fiber-optic coupling semiconductor basically has single pipe laser of coupling of much coupling laser, singler pipe, confuse your Bar and Bar / fold a series, because its have high reliability and laser of coupling of much singler pipe becomes one of mainstream pump Puyuan of fiber-optic laser, the article basically introduces to be in charge of fiber-optic coupling technology to realize the technology of laser of tall brightness semiconductor and implementation through much sheet. Much sheet of structure of 2 much singler pipes manages a construction is the course of beam of light that gives out the semiconductor laser of multichannel schism plastic, new arrange, close bundle hind coupling enters sheet the root is fiber-optic, can raise laser to output power thereby. Because chip of schism semiconductor laser must be installed,sink in the heat that has certain volume, if have the output beam of light of many semiconductor laser directly,be arranged and focusing coupling, because be mixed by every chip,normally its heat up the limitation of heavy volume, volume of amalgamative beam of light is larger, obtain the fiber-optic coupling of tall brightness of small core diameter very hard to output. To reduce the dimensional bulk size of amalgamative beam of light, must take certain step. For this, the much sheet of own research and development is in charge of Kaipulin coupling structure uses a flight of stairs to heat up lens of heavy, focusing, coupling fiber-optic and unique installation kind, smooth road design simplified structural complexity, reduced the volume of package, enhanced the power that semiconductor laser outputs greatly, assured the reasonable job temperature that coupling nods at the same time, if pursue,1 is shown. Graph 1 before undertaking much sheet is in charge of coupling, can be opposite chip of schism semiconductor laser undertakes ageing is chosen, made sure much sheet runs the reliability after coupling thereby. The random invalidation character of single pipe is independent, compare at Bar, fold blast disturb without fuel factor, of single pipe can replace also increased its durable sex, have taller cost advantage. 3 fiber-optic coupling are outputted to achieve tall brightness, high power can increase the measure that at the same time coupling sheet provides semiconductor laser to assure higher output power, but will combine bundle of laser after bundle coupling enters Changenguang 3 requirements still must satisfy in fine: The biggest diameter that is facula is less than fiber-optic core diameter; The horn of 2 disperse the internal heat with sudorifics that are beam of light are less than the angle of fiber-optic numeric aperture correspondence; 3 it is the parameter of beam of light of fast, slow axis accumulates laser (BPP, radius of stays of beam of light and horn of disperse the internal heat with sudorifics the product of half horn) should be less than parameter of fiber-optic beam of light to accumulate. Namely: But in applying actually, only the square area of fiber-optic center is usable area, if the graph is shown 2 times, coupling beam of light is sectional if pursue 3, graph the fiber-optic usable area Nextpage when 2 fiber-optic coupling pursues 3 fiber-optic in sectional graph of beam of light is 200 μ M to core diameter, numeric aperture is 0.

Of 22 fiber-optic, its BPP value is 22mm Mad, but the BPP maximum that the semiconductor of coupling stimulates beam of light is: The data of laser light beam that with 9xxnm semiconductor laser sheet raises chip to output is exemple, diameter of slow axis stays is 95 μ M, horn of disperse the internal heat with sudorifics half horn 10 ° (the energy of 99% ) , parameter of its beam of light is accumulated it is about 8.

3mm Mrad; Diameter of fast axis stays 1.

5 μ M, horn of disperse the internal heat with sudorifics half horn 39 ° (99% ) , parameter of beam of light is accumulated it is about 0.

51mm Mrad. Classics software is emulated, theoretic 200 μ M/0.

Of 22NA fiber-optic in can coupling stimulates beam of light 28 times. Current, pass old technique to accumulate, laser of semiconductor of schism of highest coupling of laser of fiber-optic coupling semiconductor counts tall brightness of triumphant Prynne 9xxnm highest can amount to 20, if laser objective pursues 4, graph 5. Objective of laser of 59xxnm/65W of plan of plan of objective of laser of graph 4 9xxnm/100W/200W pursues 4 conclusion and looked into the article to introduce a kind of many sheet to be in charge of coupling structure and implementation the computational method that tall brightness laser outputs, semiconductor laser domain is spent in Gao Liang, much sheet is in charge of fiber-optic coupling technology to apply extensively in the wavelengh laser such as 9xxnm, 793nm, 808nm, regard mix into ytterbium as fiber-optic laser and mix into Thulium respectively the pump source of fiber-optic laser and laser of solid of mix into neodymium; Level of 10W-200W different power but all sorts of job mode and the fiber-optic laser that power asks apply correspondence. Future, kaipulin will close through increasing a polarization bundle, much wavelengh adds up to bundle of fiber-optic coupling semiconductor that waits for a method to will achieve taller brilliance laser, for high power fiber-optic laser user provides more products and service. CNC Milling