The obtain bandwidth e.g. of Yb:KGW and Yb:KYW is incredibly massive as opposed with that of Yb:YAG. This allows for wide wavelength tunability and for A lot shorter pulse durations from mode-locked lasers. Values nicely below 100 fs have been accomplished with passive mode locking.

The comparison with glasses is suitable For the reason that significant gain bandwidth enables e.g. tungstate femtosecond lasers and tunable lasers to compete with glass lasers.

We current a twin-crystal Yb:KGW laserthat iscapable to function for a Q-switched oscillator with output electric power as much as 24 W and pulse length of twenty ns,or as being a regenerative amplifier with output energy as much as 21 W and pulse duration below two hundred fs just after compression of chirped pulses. The two lasers have outstanding beam high-quality with beam parameter M2

Shade-coded reflectivity of a Bragg mirror as a purpose of wavelength and angle on the incident beam.

Optical structure of the laser with immediate pumping Along with the radiation of semiconductor injection lasers. LD is really an IPG Photonics laser diode with fiber output of your radiation, WP is usually a 50 %-wave plate, CL is often a collimating lens, FL is often a concentrating lens, AE is undoubtedly an Energetic component produced from an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are the cavity mirrors, OC is the output mirror, and SAM is usually a semiconductor saturable-absorber mirror.

The monoclinic crystal constructions ends in a pure birefringence, assisting to prevent thermally induced polarization rotation and depolarization decline.

Raman, luminescence and transmission spectra reveal optical attributes owing into the existence of thulium ions, and for that reason the resources might be further more analyzed within the scope of laser and luminescence purposes.

Tungstates are inclined to acquire superior Raman coefficients (�?Raman scattering). Therefore, they are able to create important Raman achieve at reasonable optical intensities. It is achievable to make use of the laser crystal by itself being a Raman converter.

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By substituting yttrium with ytterbium from the crystal lattice of Yb:KYW due to very similar measurements of these chemical components up to a hundred% of Yb-doping may very well be realized.

The thermal conductivity of prevalent double tungstates is on the purchase to three–four W/(K m) �?which is not bad as opposed with other laser crystals (While many occasions less than for YAG), and rather massive in contrast While using the thermal conductivity of normal glasses.

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Yb:KYW crystal (Yb-doped potassium yttrium tungstate) in comparison with its counterpart Yb:KGW, is actually a outstanding material that performs a significant position in laser technology. Its Principal operate would be to generate ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.

Inquire RP Photonics for virtually any tips concerning tungstate lasers, together with femtosecond lasers and large-energy lasers.