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The Yb:KYW crystal’s proficiency in light-weight absorption at about 981 nm would make the crystal well suited for diode pumping. It really is even further enhanced by its amazing performance in this method, coupled with its low quantum defect.

The absorption and emission spectra of Yb:KYW Crystals Show robust peaks at 980 nm and 1030 nm, respectively, making certain productive Strength conversion and substantial performance in laser methods.

Optical format of a laser with direct pumping With all the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output of the radiation, WP is usually a fifty percent-wave plate, CL is really a collimating lens, FL is actually a concentrating lens, AE is surely an Lively factor comprised of an Yb:KYW crystal, DM is really a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC is definitely the output mirror, and SAM is a semiconductor saturable-absorber mirror.

Adhesion Examination Compliant with MIL-C-675C military expectations, an adhesion test included applying a tape that meets LT-90 technical specs onto the lens movie layer. The tape was affixed completely and then removed vertically. This course of action was executed 3 times, causing no blistering or peeling.

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

Tungstates are inclined to possess large Raman coefficients (�?Raman scattering). Therefore, they will generate sizeable Raman gain at moderate optical intensities. It is feasible to make use of the laser crystal itself as being a Raman converter.

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... Not only the place of crystal inside the cavity but will also the amplification axis of crystal impacts the laser operation significantly, as the absorption and emission cross sections of your crystal are pretty distinct according to the orientation of the crystal.

The thermal conductivity of popular double tungstates is on the order to three–4 W/(K m) �?which isn't poor in comparison with other laser crystals (Even though many occasions below for YAG), and fairly huge as opposed With all the thermal conductivity of regular Eyeglasses.

Li2WO4-WO3 flux was efficiently utilized reducing the growth temperature under 900 oC. In keeping with one crystal x-ray measurements, the crystal corresponds towards the P2/n Area group.

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Simultaneously, a shorter laser wavelength is usually received; it is feasible to read more work with a quantum defect effectively underneath 1%. Like a consequence, the warmth era is often so modest that this partly compensates the reduced thermal conductivity.