The smart Trick of KYW Crystal That No One is Discussing
The smart Trick of KYW Crystal That No One is Discussing
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW is rather massive in contrast with that of Yb:YAG. This permits for vast wavelength tunability and for Substantially shorter pulse durations from method-locked lasers. Values effectively under 100 fs are actually accomplished with passive method locking.
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We present a dual-crystal Yb:KGW laserthat iscapable to operate as a Q-switched oscillator with output energy around 24 W and pulse length of twenty ns,or as a regenerative amplifier with output electrical power approximately 21 W and pulse length underneath 200 fs soon after compression of chirped pulses. Both equally lasers have great beam excellent with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with direct longitudinal pumping by powerful linear arrays of semiconductor injection lasers having fiber output. To prevent spectral narrowing during amplification and the corresponding lengthening of your amplified pulse when it is actually compressed, a mix of two Yb:KYW crystals were used, While using the spectral maxima on the amplification shifted relative to one another and with spectral profiling on the amplified radiation.
Following air drying and subsequent cleansing having a cotton cloth soaked in alcohol, the film floor confirmed no indications of peeling or scratches.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and are made use of as lasing products to produce ultrashort (~ 100-200 fs) substantial power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser systems.
Tungstates are inclined to own substantial Raman coefficients (�?Raman scattering). As a result, they're able to produce significant Raman attain at reasonable optical intensities. It is possible to make use of the laser crystal alone like a Raman converter.
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW because of the identical measurements of such chemical factors up to one hundred% of Yb-doping could be realized.
The thermal conductivity of frequent double tungstates is of your purchase to three–four W/(K m) �?which is not negative in comparison with other laser crystals (Despite the fact that quite a few instances a lot less than for YAG), and fairly massive as opposed with the thermal conductivity of common glasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, is really a remarkable substance that plays a very important purpose in laser technological innovation. Its Main purpose is always to produce ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
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