Considerations To Know About KYW Crystal

Considerations To Know About KYW Crystal

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The achieve bandwidth e.g. of Yb:KGW and Yb:KYW may be very big when compared with that of Yb:YAG. This allows for extensive wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values perfectly down below a hundred fs are already realized with passive manner locking.

The Yb-doped potassium yttrium tungstate (Yb:KYW) crystal, as compared to its counterpart Yb:KGW, is actually a amazing material that plays a very important role in laser know-how. Its Principal functionality is always to crank out ultrashort pulses of sunshine, spanning only a few hundred femtoseconds.

We present a twin-crystal Yb:KGW laserthat iscapable to operate for a Q-switched oscillator with output electric power as many as 24 W and pulse size of twenty ns,or being a regenerative amplifier with output power nearly 21 W and pulse period under 200 fs after compression of chirped pulses. The two lasers have superb beam high quality with beam parameter M2

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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 of the radiation, WP is a half-wave plate, CL can be a collimating lens, FL is often a concentrating lens, AE is an active factor constructed from an Yb:KYW crystal, DM is a spherical dichroic mirror, M1-M6 are definitely the cavity mirrors, OC could be the output mirror, and SAM is really a semiconductor saturable-absorber mirror.

Just before the development of Nd:YAG, Nd3+:CaWO4 was a vital uncommon-earth-doped laser obtain medium. It had been the truth is used in the very first constantly functioning crystal laser.

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Spatial composition of the beam and the corresponding intensity profiles I at the output of the laser.

For tungstates, the ytterbium doping focus can be quite large with out significant quenching as the replaced ions have an extremely comparable ion radius, as well as inter-ion length is fairly big.

... Not simply the position of crystal while in the cavity but will also the amplification axis of crystal impacts the laser Procedure considerably, as the absorption and emission cross sections of the crystal are quite distinct according to the orientation on the crystal.

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At the same time, a shorter laser wavelength may be received; it can be done to function by using a quantum defect well down below one%. For a consequence, the heat generation might be so tiny this partly compensates the lower thermal conductivity.