5 Easy Facts About KYW Crystal Described
5 Easy Facts About KYW Crystal Described
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This special attribute of ultrafast pulses allows nonlinear optical interaction with tissue at minimal General publicity, and drives programs such as deep-tissue multiphoton microscopy and superior-precision eye medical procedures
We present a dual-crystal Yb:KGW laserthat iscapable to operate as a Q-switched oscillator with output energy up to 24 W and pulse size of twenty ns,or like a regenerative amplifier with output electric power up to 21 W and pulse duration down below two hundred fs immediately after compression of chirped pulses. Both of those lasers have fantastic beam quality with beam parameter M2
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This paper describes a femtosecond laser regenerative amplifier according to two Yb:KYW crystals with direct longitudinal pumping by strong linear arrays of semiconductor injection lasers acquiring fiber output. To circumvent spectral narrowing all through amplification and the corresponding lengthening of the amplified pulse when it is compressed, a mix of two Yb:KYW crystals ended up utilised, Together with the spectral maxima on the amplification shifted relative to each other and with spectral profiling from the amplified radiation.
Following air drying and subsequent cleansing by using a cotton cloth soaked in Alcoholic beverages, the film area showed no indications of peeling or scratches.
FIG. 1. Optical structure of a laser with immediate pumping Together with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output
Tungstates are likely to own superior Raman coefficients (�?Raman scattering). Consequently, they will generate substantial Raman achieve at reasonable optical intensities. It is achievable to utilize the laser crystal by itself for a Raman converter.
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... Not simply the position of crystal inside the cavity and also the amplification axis of crystal has an effect on the laser Procedure greatly, as the absorption and emission cross sections of the crystal are fairly distinct based on the orientation in the crystal.
The thermal conductivity of widespread double tungstates is with check here the buy to 3–4 W/(K m) �?which is not terrible as opposed with other laser crystals (Though many instances lower than for YAG), and reasonably massive as opposed With all the thermal conductivity of normal Eyeglasses.
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