KYW Crystal - An Overview

KYW Crystal - An Overview

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In practical terms, the Yb:KYW crystal has located its niche in high-electrical power laser purposes on account of its capacity to generate high Electricity ultrashort laser pulses while preserving a compact size. The interaction of its attributes �?seamless ytterbium substitution, strong absorption features, ultrashort pulse generation and performance in Vitality conversion �?positions the Yb:KYW crystal as being a cornerstone during the laser know-how, masking various fields starting from scientific study to industrial apps.

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We existing a twin-crystal Yb:KGW laserthat iscapable to function being a Q-switched oscillator with output electricity around 24 W and pulse duration of 20 ns,or like a regenerative amplifier with output energy as much as 21 W and pulse period beneath two hundred fs right after compression of chirped pulses. Both equally lasers have excellent beam good quality with beam parameter M2

The absorption and emission spectra of Yb:KYW Crystals Display screen powerful peaks at 980 nm and 1030 nm, respectively, making sure productive Power conversion and high overall performance in laser systems.

Optical layout of the laser with direct pumping Along with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output with the radiation, WP is usually a half-wave plate, CL is really a collimating lens, FL is actually a concentrating lens, AE is undoubtedly an Lively factor produced from an Yb:KYW crystal, DM is really a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC is the output mirror, and SAM is really a semiconductor saturable-absorber mirror.

The monoclinic crystal constructions brings about a pure birefringence, assisting to avoid thermally induced polarization rotation and depolarization decline.

FIG. one. Optical layout of the laser with direct pumping With all the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output

Tungstates have a tendency to possess high Raman coefficients (�?Raman scattering). As a result, they are able to generate major Raman get at reasonable optical intensities. It is achievable to make use of the laser crystal itself like a Raman converter.

For tungstates, the ytterbium doping focus can be extremely superior without the need of major quenching as the changed ions have an exceedingly very similar ion radius, along with the inter-ion distance is pretty massive.

On the other hand, at the time Nd3+:YAG grew to become commercially obtainable, the desire in CaWO4 dropped sharply. In later on many years, sure other tungstate crystals started to appeal to a great deal of awareness.

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Concurrently, a shorter laser more info wavelength is usually attained; it is possible to function that has a quantum defect nicely beneath 1%. As being a consequence, the heat era might be so compact that this partly compensates the decreased thermal conductivity.