KYW Crystal Things To Know Before You Buy

KYW Crystal Things To Know Before You Buy

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Femtosecond laser depending on Yb:KYW crystals with suppression of spectral narrowing in a regenerative amplifier by spectral profiling of the pulse

FIG. four. Autocorrelation operate of the pulse 共a兲and spectrum 共b兲of the laser with a rectangular Energetic aspect for an output electricity of 700 mW. The width of

Optical structure of a laser with immediate pumping While using the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output on the radiation, WP is a 50 percent-wave plate, CL is really a collimating lens, FL is often a focusing lens, AE is undoubtedly an Lively component produced from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC is the output mirror, and SAM can be a semiconductor saturable-absorber mirror.

Just before the event of Nd:YAG, Nd3+:CaWO4 was a vital unusual-earth-doped laser attain medium. It had been in actual fact Employed in the initial repeatedly functioning get more info crystal laser.

FIG. one. Optical format of the laser with direct pumping While using the radiation of semiconductor injection lasers. LD is undoubtedly an IPG Photonics laser diode with fiber output

Tungstates are likely to acquire high Raman coefficients (�?Raman scattering). Therefore, they can create significant Raman achieve at reasonable optical intensities. It is achievable to use the laser crystal by itself to be a Raman converter.

For tungstates, the ytterbium doping concentration can be quite higher devoid of substantial quenching since the changed ions have an extremely identical ion radius, as well as the inter-ion length is pretty huge.

By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to related sizes of such chemical features as many as one hundred% of Yb-doping could be obtained.

The thermal conductivity of prevalent double tungstates is of the order to three–4 W/(K m) �?which isn't poor compared with other laser crystals (While numerous times below for YAG), and fairly substantial compared Along with the thermal conductivity of common glasses.

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Concurrently, a shorter laser wavelength can be received; it is feasible to work that has a quantum defect effectively below 1%. As a consequence, the heat technology might be so small that this partly compensates the lower thermal conductivity.