Top KYW Crystal Secrets

Top KYW Crystal Secrets

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This special attribute of ultrafast pulses permits nonlinear optical interaction with tissue at small General publicity, and drives purposes including deep-tissue multiphoton microscopy and superior-precision eye medical procedures

We current a dual-crystal Yb:KGW laserthat iscapable to operate as being a Q-switched oscillator with output electrical power approximately 24 W and pulse size of 20 ns,or like a regenerative amplifier with output electric power as many as 21 W and pulse length under 200 fs soon after compression of chirped pulses. Equally lasers have exceptional beam good quality with beam parameter M2

Coloration-coded reflectivity of the Bragg mirror to be a function of wavelength and angle in the incident beam.

Optical layout of the laser with direct pumping with the radiation of semiconductor injection lasers. LD can be an IPG Photonics laser diode with fiber output on the radiation, WP is really a 50 %-wave plate, CL is a collimating lens, FL is often a focusing lens, AE is undoubtedly an Lively factor comprised of an Yb:KYW crystal, DM is actually a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC may be the output mirror, and SAM is actually a semiconductor saturable-absorber mirror.

The monoclinic crystal structures results in a natural birefringence, assisting to steer clear of thermally induced polarization rotation and depolarization loss.

PDF Yb:KGW and Yb:KYW crystals have wide emission bandwidths and so are utilised as lasing products to make ultrashort (~ 100-200 fs) superior electric power pulses. Direct pump of Yb:KGW/KYW crystals with laser diodes operating at 981 nm supports compact laser units.

A large brightnessQ-switched oscillator and regenerative amplifier based upon a dual-crystal Yb:KGW laser

For tungstates, the ytterbium doping concentration can be quite superior with no significant quenching because the replaced ions have an exceedingly comparable ion radius, plus the inter-ion length is relatively huge.

By substituting yttrium with ytterbium within the crystal lattice of Yb:KYW because of the similar dimensions of those chemical elements nearly one hundred% of Yb-doping might be achieved.

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At the same time, a shorter laser wavelength is usually received; it is feasible to work by using a quantum defect nicely down below 1%. To be a consequence, the heat technology might be so tiny this partly compensates the here reduce thermal conductivity.