New Step by Step Map For KYW Crystal
New Step by Step Map For KYW Crystal
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In useful phrases, the Yb:KYW crystal has discovered its specialized niche in higher-electrical power laser purposes because of its capability to produce substantial Power ultrashort laser pulses whilst maintaining a compact measurement. The interplay of its features �?seamless ytterbium substitution, sturdy absorption features, ultrashort pulse era and effectiveness in Electrical power conversion �?positions the Yb:KYW crystal for a cornerstone from the laser engineering, covering diverse fields ranging from scientific investigation to industrial applications.
This special characteristic of ultrafast pulses enables nonlinear optical conversation with tissue at very low In general exposure, and drives applications for instance deep-tissue multiphoton microscopy and high-precision eye medical procedures
time. Crystals of your compound melts congruently at 1007 oC, however soften crystallization of top quality crystal is impossible on account of stage transition at ~920 oC. The very best seeded Answer technique from
FIG. four. Autocorrelation functionality of the pulse 共a兲and spectrum 共b兲of the laser with an oblong active element for an output power of seven-hundred mW. The width of
Optical layout of the laser with direct pumping Using the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output of the radiation, WP is usually a 50 percent-wave plate, CL is actually a collimating lens, FL is often a focusing lens, AE is surely an Lively factor constructed from an Yb:KYW crystal, DM can be a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC may be the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
Ahead of the event of Nd:YAG, Nd3+:CaWO4 was an important exceptional-earth-doped laser attain medium. It was in reality Employed in the 1st continually operating crystal laser.
PDF Yb:KGW and Yb:KYW crystals have broad emission bandwidths and are used as lasing components to create ultrashort (~ 100-two hundred fs) significant electricity pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes functioning at 981 nm supports compact laser units.
five mm in addition to the middle from the beam caustic. As a way to Examine the method matching simulation, we done the experiment with Ng-Slice crystal oscillator, which was created Earlier As well as in a very same situation with simulation [11]. As revealed in Determine 3(b) with red dots and line, the CW output electrical power is extremely dependent on the situation of laser crystal plus the experimental result coincides very well with simulation outcome. Being a Observe, multimode Procedure transpired in experiment once the measurement on the pump beam is more substantial than TEM00 cavity manner and it leads to increased CW output energy inside the displacement region beneath 3.5 mm.
... at 50 percent-height had been produced within a master oscillator with selfsynchronization from the axial modes, described in our earlier short article. 21 The new edition from the laser, as opposed to that described inside our earlier short article, employed an Yb:KYW crystal by having an N pcut (optical axis N p on the index get more info ellipsoid was parallel into the propagation way with the laser radiation), Along with the polarization of your created radiation directed along the N m axis.
Higher-electrical power repetitively pulsed ytterbium lasers with supershort pulse width and direct diode pumping for technological and biomedical apps
The thermal conductivity of popular double tungstates is from the order to 3–four W/(K m) �?which isn't bad compared with other laser crystals (While quite a few instances a lot less than for YAG), and reasonably massive in comparison Using the thermal conductivity of normal glasses.
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