457nm high-power ib zaug zaus xiav laser

457nm high-power ib zaug xwblaser xiav
Kev tsim txoj kev pom ntawm 457nm high-power single-frequency xiav laser nrog ib zaus
Lub twj tso kua mis siv yog 30 W fiber-coupled laser diode array. Qhov thib ob, lub nplhaib resonator raug xaiv rau hom kev xaiv. Lub ntsej muag kawg yog pumped nrog 5 hli ntev Nd3 +-doped yttrium vanadate (Nd:YVO4) siv lead ua ke nrog qhov concentration ntawm 0.1%. Tom qab ntawd, los ntawm I-hom theem-matched lithium triborate (LBO) siv lead ua ke, qhov thib ob harmonic yog tsim los ua tiav 457nm high-power ib zaug-zaus.lasertso zis. Thaum lub zog twj tso kua mis yog 30 W, lub zog tso zis ntawm 457nm ib zaug laser yog 5.43 W, qhov nruab nrab wavelength yog 457.06 nm, qhov ua haujlwm hloov pauv lub teeb-rau-lub teeb yog 18.1%, thiab lub zog ruaj khov hauv 1 teev yog 0.464%. Lub 457nm laser ua haujlwm hauv hom tseem ceeb hauv lub resonator. Cov yam ntxwv zoo ntawm lub teeb raws li x thiab y cov lus qhia yog 1.04 thiab 1.07 feem, thiab ellipticity ntawm lub teeb pom kev yog 97%.

Kev piav qhia ntawm txoj kev kho qhov muag ntawm lub teeb xiav muaj zog heevib zaug xwb laser
Lub twj tso kua mis siv lub fiber optical-coupledsemiconductor laser diodearray nrog lub wavelength nruab nrab ntawm 808 nm, lub zog tso zis tas mus li ntawm 30 W, thiab lub fiber core txoj kab uas hla ntawm 400 μm, nrog lub qhov aperture ntawm 0.22.
Lub teeb twj tso kua mis yog collimated thiab tsom los ntawm ob lub plano-convex lens nrog lub focal ntev ntawm 20 hli thiab tom qab ntawd tshwm sim rau ntawmsiv lead ua laser. Lub laser siv lead ua yog 3 hli × 3 hli × 5 hli Nd:YVO4 siv lead ua nrog qhov concentration doping ntawm 0.1%, nrog 808 nm thiab 914 nm anti-reflection zaj duab xis tso rau ntawm ob qho kawg, thiab lub siv lead ua yog qhwv nrog indium ntawv ci thiab muab tso rau hauv lub clamping tooj liab. Lub clamping tooj liab fixture yog tswj qhov kub thiab txias los ntawm lub semiconductor txias thiab teeb tsa ntawm 15 ℃.
Lub resonator yog lub voj voog plaub-daim iav uas muaj M1, M2, M3, thiab M4.
M1 yog daim iav dav hlau nrog 808 nm, 1064 nm, thiab 1342 nm anti-reflection films (R < 0.05%), thiab 914 nm tag nrho reflection film (R > 99.8%); M4 yog daim iav dav hlau tso zis nrog 914 nm tag nrho reflection films (R > 99.8%), 457 nm thiab 1064 nm, 1342 nm anti-reflection films (R < 0.02%); M2 thiab M3 yog ob qho tib si plano-concave iav nrog lub vojvoog curvature ntawm r = 100 mm, nrog 1064 nm thiab 1342 nm anti-reflection films (R < 0.05%) ntawm lub dav hlau thiab 914 nm thiab 457 nm tag nrho reflection films (R > 99.8%) ntawm qhov concave nto.
Lub phaj ib nrab nthwv dej thiab lub siv lead ua TGG uas muab tso rau hauv lub teb sib nqus ob leeg muaj cov yeeb yaj kiab tiv thaiv kev cuam tshuam 914 nm (R < 0.02%). Los ntawm kev qhia txog lub cuab yeej kho qhov muag uas muaj TGG thiab lub phaj ib nrab nthwv dej, lub laser raug yuam kom khiav ib qho kev taw qhia hauv lub nplhaib resonator, yog li ua kom ntseeg tau tias lub laser ua haujlwm ruaj khov hauv lub xeev ib zaug xwb. FP yog ib daim txheem nrog lub thickness ntawm 2 hli, nrog rau kev cuam tshuam ob sab ntawm 50%, thiab nws ua qhov nqaim thib ob ntawm kev ua haujlwm ib zaug ntawm lub laser hauv qhov. Lub siv lead ua LBO raug xaiv ua lub siv lead ua zaus ob npaug, nrog qhov loj ntawm 3 hli × 3 hli × 15 hli, thiab yog coated nrog 914 nm thiab 457 nm tiv thaiv kev cuam tshuam zaj duab xis (R < 0.02%), nrog I-hom theem sib phim, txiav lub kaum sab xis θ = 90 °, φ = 21.9 °.