An Unbiased View of KYW Crystal
An Unbiased View of KYW Crystal
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is rather big in comparison with that of Yb:YAG. This permits for wide wavelength tunability and for Significantly shorter pulse durations from manner-locked lasers. Values effectively underneath one hundred fs are accomplished with passive mode locking.
The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is a exceptional material that performs an important job in laser engineering. Its Main function should be to create ultrashort pulses of light, spanning just a couple hundred femtoseconds.
We present a dual-crystal Yb:KGW laserthat iscapable to operate being a Q-switched oscillator with output power around 24 W and pulse size of 20 ns,or as a regenerative amplifier with output electrical power nearly 21 W and pulse duration down below 200 fs after compression of chirped pulses. Both lasers have outstanding beam excellent with beam parameter M2
The absorption and emission spectra of Yb:KYW Crystals Display screen solid peaks at 980 nm and 1030 nm, respectively, ensuring productive Strength conversion and higher effectiveness in laser programs.
Optical structure of the laser with immediate pumping While using the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output of the radiation, WP is actually a 50 %-wave plate, CL is really a collimating lens, FL can be a focusing lens, AE is an Energetic ingredient created from an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC is the output mirror, and SAM can be a semiconductor saturable-absorber mirror.
The monoclinic crystal buildings brings about a purely natural birefringence, assisting to stay away from thermally induced polarization rotation and depolarization reduction.
FIG. one. Optical format of a laser with direct pumping Together with the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output
Spatial construction of the beam plus the corresponding depth profiles I at the output on the laser.
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... Not simply the place of crystal inside the cavity but will also the amplification axis of crystal affects the laser Procedure considerably, since the absorption and emission cross sections of your crystal are very various based on the orientation from the crystal.
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Talk to RP Photonics for almost any suggestions concerning tungstate lasers, together with femtosecond lasers and substantial-energy lasers.