KYW Crystal - An Overview
KYW Crystal - An Overview
Blog Article
The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly massive when compared with that of Yb:YAG. This enables for vast wavelength tunability and for Significantly shorter pulse durations from mode-locked lasers. Values nicely below 100 fs are actually obtained with passive method locking.
The comparison with glasses is suitable Considering that the huge achieve bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
We current a dual-crystal Yb:KGW laserthat iscapable to function as being a Q-switched oscillator with output electric power around 24 W and pulse duration of twenty ns,or as a regenerative amplifier with output electric power as much as 21 W and pulse period beneath two hundred fs soon after compression of chirped pulses. Each lasers have superb beam high-quality with beam parameter M2
FIG. four. Autocorrelation purpose of the pulse 共a兲and spectrum 共b兲of the laser with an oblong active component for an output electrical power of seven hundred mW. The width of
Optical layout of a laser with direct pumping While using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output on the radiation, WP is usually a 50 percent-wave plate, CL is a collimating lens, FL is a focusing lens, AE is definitely an active component made from an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC may be the output mirror, and SAM can be a semiconductor saturable-absorber mirror.
Adhesion Examination Compliant more info with MIL-C-675C armed service benchmarks, an adhesion exam concerned applying a tape that meets LT-90 specs on to the lens movie layer. The tape was affixed absolutely and after that eliminated vertically. This method was carried out three times, leading to no blistering or peeling.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are used as lasing supplies to create ultrashort (~ one hundred-200 fs) substantial ability pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes functioning at 981 nm supports compact laser units.
Tungstates are likely to possess large Raman coefficients (�?Raman scattering). Thus, they might generate considerable Raman acquire at moderate optical intensities. It is feasible to use the laser crystal itself as being a Raman converter.
EKSMA Optics makes use of cookies to provide you with the very best browsing practical experience. When you continue on to work with our companies, We'll believe which you agree to using these cookies.
On the other hand, at the time Nd3+:YAG became commercially accessible, the curiosity in CaWO4 dropped sharply. In later on a long time, specified other tungstate crystals began to bring in loads of notice.
The thermal conductivity of popular double tungstates is with the purchase to 3–four W/(K m) �?which is not bad as opposed with other laser crystals (Despite the fact that numerous times fewer than for YAG), and reasonably big as opposed Together with the thermal conductivity of common Eyeglasses.
There won't be any things in your cart. Add products to the cart and request an Formal quote or order on line Subtotal
The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at space temperature ended up measured. The emission spectrum and life time in the 3 F four psyched point out were being identified. Utilizing standard and modified Judd–Ofelt theories, the depth parameters along with the radiative lifetimes have been calculated and excellent arrangement Along with the experimental final results was acquired for both theories.
Check with RP Photonics for almost any advice relating to tungstate lasers, such as femtosecond lasers and large-ability lasers.