Top KYW Crystal Secrets
Top KYW Crystal Secrets
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This special characteristic of ultrafast pulses enables nonlinear optical interaction with tissue at very low General exposure, and drives apps which include deep-tissue multiphoton microscopy and higher-precision eye operation
We present a twin-crystal Yb:KGW laserthat iscapable to operate as a Q-switched oscillator with output ability approximately 24 W and pulse length of twenty ns,or as being a regenerative amplifier with output power approximately 21 W and pulse duration underneath 200 fs immediately after compression of chirped pulses. Each lasers have fantastic beam top quality with beam parameter M2
Color-coded reflectivity of the Bragg mirror like a perform of wavelength and angle on the incident beam.
Optical format of the laser with immediate pumping Using the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output on the radiation, WP is usually a half-wave plate, CL is really a collimating lens, FL is often a concentrating lens, AE is definitely an Energetic factor constructed from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC will be the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
Prior to the development of Nd:YAG, Nd3+:CaWO4 was a very important uncommon-earth-doped laser obtain medium. It was in reality Utilized in the primary continually working crystal laser.
FIG. one. Optical layout of a laser with direct pumping While using the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
A high brightnessQ-switched oscillator and regenerative amplifier depending on a twin-crystal Yb:KGW laser
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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW a result of get more info the comparable dimensions of these chemical things as much as a hundred% of Yb-doping might be obtained.
The thermal conductivity of common double tungstates is of your order to 3–four W/(K m) �?which isn't poor when compared with other laser crystals (although numerous periods less than for YAG), and relatively massive when compared 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 actually a outstanding material that performs a crucial role in laser technological know-how. Its Key perform should be to make ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.
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