The KYW Crystal Diaries
The KYW Crystal Diaries
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The comparison with glasses is suitable since the significant obtain bandwidth will allow e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.
time. Crystals in the compound melts congruently at 1007 oC, having said that soften crystallization of top quality crystal is extremely hard due to section changeover at ~920 oC. The top seeded Alternative system from
The absorption and emission spectra of Yb:KYW Crystals Screen solid peaks at 980 nm and 1030 nm, respectively, making certain economical Power conversion and high functionality in laser systems.
Optical structure of a laser with immediate pumping Together with the radiation of semiconductor injection lasers. LD is an IPG Photonics laser diode with fiber output from the radiation, WP is really a 50 %-wave plate, CL is a collimating lens, FL is often a concentrating lens, AE can be an active ingredient comprised of an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 tend to be the cavity mirrors, OC will be the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.
Adhesion Test Compliant with MIL-C-675C military services specifications, an adhesion take a look at associated applying a tape that satisfies LT-90 requirements on to the lens film layer. The tape was affixed fully after which eradicated vertically. This treatment was carried out thrice, causing no blistering or peeling.
Raman, luminescence and transmission spectra expose optical capabilities owing for the presence of thulium ions, here and as a consequence the elements could possibly be additional examined while in the scope of laser and luminescence applications.
A superior brightnessQ-switched oscillator and regenerative amplifier determined by a dual-crystal Yb:KGW laser
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By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW due to very similar dimensions of these chemical things nearly one hundred% of Yb-doping can be accomplished.
The thermal conductivity of popular double tungstates is from the purchase to three–4 W/(K m) �?which is not bad as opposed with other laser crystals (Whilst many moments less than for YAG), and quite significant compared Using the thermal conductivity of usual Eyeglasses.
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Simultaneously, a shorter laser wavelength might be attained; it can be done to operate having a quantum defect properly underneath one%. To be a consequence, the warmth technology can be so little that this partly compensates the reduced thermal conductivity.