KYW Crystal Options
KYW Crystal Options
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This special attribute of ultrafast pulses enables nonlinear optical interaction with tissue at small General exposure, and drives applications like deep-tissue multiphoton microscopy and large-precision eye surgical treatment
We current a twin-crystal Yb:KGW laserthat iscapable to work to be a Q-switched oscillator with output ability approximately 24 W and pulse length of 20 ns,or for a regenerative amplifier with output electric power around 21 W and pulse period beneath 200 fs after compression of chirped pulses. Both of those lasers have superb beam top quality with beam parameter M2
Coloration-coded reflectivity of a Bragg mirror like a functionality of wavelength and angle in the incident beam.
Optical structure of a 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 a 50 percent-wave plate, CL is usually a collimating lens, FL is really a focusing lens, AE is an Energetic component made from an Yb:KYW crystal, DM is often a spherical dichroic mirror, M1-M6 would be the cavity mirrors, OC may be the output mirror, and SAM is a semiconductor saturable-absorber mirror.
The monoclinic crystal constructions results in a all-natural birefringence, assisting to stay clear of thermally induced polarization rotation and depolarization loss.
PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are employed as lasing resources to produce ultrashort check here (~ one hundred-two hundred fs) large electrical power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes running at 981 nm supports compact laser techniques.
Tungstates are likely to possess substantial Raman coefficients (�?Raman scattering). Hence, they will make major Raman acquire at moderate optical intensities. It can be done to make use of the laser crystal itself like a Raman converter.
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... Not merely the placement of crystal within the cavity but additionally the amplification axis of crystal impacts the laser Procedure greatly, as the absorption and emission cross sections of your crystal are really diverse according to the orientation of your crystal.
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The polarized absorption spectra of Tm3+-doped potassium yttrium tungstate (Tm:KY(WO4)two) crystal at home temperature have been measured. The emission spectrum and life time in the 3 File four psyched point out were determined. Utilizing typical and modified Judd–Ofelt theories, the intensity parameters and also the radiative lifetimes were calculated and great agreement Together with the experimental outcomes was obtained for the two theories.
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