KYW Crystal Secrets
KYW Crystal Secrets
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The acquire bandwidth e.g. of Yb:KGW and Yb:KYW is quite big in comparison with that of Yb:YAG. This allows for large wavelength tunability and for Considerably shorter pulse durations from mode-locked lasers. Values perfectly below 100 fs are reached with passive manner locking.
This special characteristic of ultrafast pulses allows nonlinear optical interaction with tissue at lower In general publicity, and drives apps which include deep-tissue multiphoton microscopy and superior-precision eye surgical procedures
Femtosecond laser based on Yb:KYW crystals with suppression of spectral narrowing within a regenerative amplifier by spectral profiling of the heart beat
Coloration-coded reflectivity of a Bragg mirror to be a purpose of wavelength and angle on the incident beam.
This paper describes a femtosecond laser regenerative amplifier based upon two Yb:KYW crystals with direct longitudinal pumping by powerful linear arrays of semiconductor injection lasers obtaining fiber output. To avoid spectral narrowing for the duration of amplification plus the corresponding lengthening on the amplified pulse when it is compressed, a mix of two Yb:KYW crystals had been used, While using the spectral maxima of the amplification shifted relative to one another and with spectral profiling of your amplified radiation.
Just before the event of Nd:YAG, Nd3+:CaWO4 was an important scarce-earth-doped laser acquire medium. It was in actual fact Utilized in the very first constantly running crystal laser.
FIG. 1. Optical format of a laser with immediate pumping with the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
A substantial brightnessQ-switched oscillator and regenerative amplifier according to a dual-crystal Yb:KGW laser
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... Don't just the posture of crystal in the cavity but also the amplification axis of crystal has an effect on the laser Procedure greatly, since the absorption and emission cross sections of your crystal are fairly distinctive based on the orientation with the crystal.
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This tandem of characteristics has significantly-achieving implications, notably in the construction of compact however powerfull lasers.
Yb:KYW crystal (Yb-doped potassium yttrium tungstate) when compared to its counterpart Yb:KGW, is really a exceptional content that performs a crucial job in laser know-how. Its Principal function is to produce ultrashort pulses of sunshine, spanning just some hundred femtoseconds.
Check with RP Photonics for just about any suggestions relating to tungstate lasers, such as femtosecond lasers and superior-electric power lasers.