Top KYW Crystal Secrets
Top KYW Crystal Secrets
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The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is extremely substantial compared with that of Yb:YAG. This allows for extensive wavelength tunability and for A great deal shorter pulse durations from manner-locked lasers. Values nicely down below a hundred fs happen to be attained with passive manner locking.
This unique attribute of ultrafast pulses enables nonlinear optical conversation with tissue at lower General publicity, and drives applications for instance deep-tissue multiphoton microscopy and large-precision eye surgical procedure
We existing a twin-crystal Yb:KGW laserthat iscapable to operate to be a Q-switched oscillator with output energy nearly 24 W and pulse length of twenty ns,or as a regenerative amplifier with output electrical power as many as 21 W and pulse duration beneath two hundred fs just after compression of chirped pulses. Both lasers have excellent beam high quality with beam parameter M2
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Optical structure of a laser with immediate pumping With all the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output from the radiation, WP is usually a fifty percent-wave plate, CL can be a collimating lens, FL is really a focusing lens, AE is really an active component made out of an Yb:KYW crystal, DM can be a spherical dichroic KYW Crystal mirror, M1-M6 are classified as the cavity mirrors, OC is the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.
In advance of the development of Nd:YAG, Nd3+:CaWO4 was an important exceptional-earth-doped laser acquire medium. It had been in actual fact used in the 1st continuously working crystal laser.
FIG. one. Optical layout of the laser with direct pumping While using the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output
Tungstates have a tendency to own significant Raman coefficients (�?Raman scattering). Therefore, they're able to create important Raman get at reasonable optical intensities. It is achievable to make use of the laser crystal by itself like a Raman converter.
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... Not simply the situation of crystal during the cavity but also the amplification axis of crystal affects the laser Procedure greatly, as the absorption and emission cross sections of your crystal are pretty various in accordance with the orientation with the crystal.
The thermal conductivity of frequent double tungstates is of the buy to 3–4 W/(K m) �?which isn't undesirable compared with other laser crystals (While a number of situations under for YAG), and quite large in comparison with the thermal conductivity of regular Eyeglasses.
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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) compared to its counterpart Yb:KGW, is a remarkable material that performs a significant purpose in laser know-how. Its primary purpose is always to produce ultrashort pulses of sunshine, spanning just a few hundred femtoseconds.
Talk to RP Photonics for almost any guidance about tungstate lasers, like femtosecond lasers and high-power lasers.