5 Simple Statements About KYW Crystal Explained

5 Simple Statements About KYW Crystal Explained

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This one of a kind characteristic of ultrafast pulses enables nonlinear optical interaction with tissue at reduced Total publicity, and drives apps for instance deep-tissue multiphoton microscopy and higher-precision eye medical procedures

We current a dual-crystal Yb:KGW laserthat iscapable to function to be a Q-switched oscillator with output energy around 24 W and pulse duration of twenty ns,or as a regenerative amplifier with output power around 21 W and pulse period beneath 200 fs just after compression of chirped pulses. Both lasers have excellent beam excellent with beam parameter M2

Shade-coded reflectivity of the Bragg mirror as a functionality of wavelength and angle in the incident beam.

This paper describes a femtosecond laser regenerative amplifier determined by two Yb:KYW crystals with immediate longitudinal pumping by powerful linear arrays of semiconductor injection lasers acquiring fiber output. To stop spectral narrowing during amplification plus the corresponding lengthening of your amplified pulse when it really is compressed, a mix of two Yb:KYW crystals have been used, Along with the spectral maxima from the amplification shifted relative to one another and with spectral profiling of the amplified radiation.

Immediately after air drying and subsequent cleaning that has a cotton cloth soaked in Alcoholic beverages, the film surface area showed no indications of peeling or scratches.

PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and they are made use of as lasing materials to generate ultrashort (~ a hundred-two hundred fs) significant electric power pulses. Immediate pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser systems.

Tungstates tend to get substantial Raman coefficients (�?Raman scattering). Hence, they might generate substantial Raman obtain at reasonable optical intensities. It is feasible to make use of the laser crystal by itself being a Raman converter.

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By substituting yttrium with ytterbium inside the crystal lattice of Yb:KYW as a result of comparable sizes of such chemical things as many as one hundred% of Yb-doping could possibly be accomplished.

Even though ytterbium-doped laser gain media normally show a small quantum defect, ytterbium-doped tungstates make it possible for for especially smaller values. For instance, a 1030-nm Yb:YAG laser would Commonly be pumped around 940 nm, While Yb:KGW or Yb:KYW can be KYW Crystal most effectively pumped all over 981 nm.

Li2WO4-WO3 flux was successfully utilized decreasing the growth temperature below 900 oC. According to one crystal x-ray measurements, the crystal corresponds towards the P2/n Place group.

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Concurrently, a shorter laser wavelength can be obtained; it is feasible to function with a quantum defect nicely underneath 1%. Being a consequence, the heat era may be so compact this partly compensates the lessen thermal conductivity.