KYW Crystal No Further a Mystery
KYW Crystal No Further a Mystery
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The gain bandwidth e.g. of Yb:KGW and Yb:KYW is quite significant in contrast with that of Yb:YAG. This enables for huge wavelength tunability and for much shorter pulse durations from mode-locked lasers. Values effectively under one hundred fs are obtained with passive manner locking.
This exclusive characteristic of ultrafast pulses allows nonlinear optical conversation with tissue at reduced overall exposure, and drives apps including deep-tissue multiphoton microscopy and substantial-precision eye surgical treatment
We current a dual-crystal Yb:KGW laserthat iscapable to work as a Q-switched oscillator with output energy around 24 W and pulse duration of twenty ns,or for a regenerative amplifier with output electrical power around 21 W and pulse duration below two hundred fs immediately after compression of chirped pulses. Both equally lasers have exceptional beam top quality with beam parameter M2
Color-coded reflectivity of a Bragg mirror for a function of wavelength and angle from the incident beam.
Optical structure of a laser with immediate pumping Together with the radiation of semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output of your radiation, WP can be a 50 percent-wave plate, CL is really a collimating lens, FL is often a focusing lens, AE is definitely an active ingredient created from an Yb:KYW crystal, DM is usually a spherical dichroic mirror, M1-M6 are classified as the cavity mirrors, OC is definitely the output mirror, and SAM is really a semiconductor saturable-absorber mirror.
Adhesion Check Compliant with MIL-C-675C navy benchmarks, an adhesion test involved get more info applying a tape that meets LT-90 specifications onto the lens movie layer. The tape was affixed absolutely after which taken off vertically. This technique was done 3 times, leading to no blistering or peeling.
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A significant brightnessQ-switched oscillator and regenerative amplifier dependant on a twin-crystal Yb:KGW laser
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High-electricity repetitively pulsed ytterbium lasers with supershort pulse width and immediate diode pumping for technological and biomedical applications
While ytterbium-doped laser acquire media typically exhibit a small quantum defect, ytterbium-doped tungstates permit for specifically tiny values. As an example, a 1030-nm Yb:YAG laser would Typically be pumped all over 940 nm, While Yb:KGW or Yb:KYW may be most proficiently pumped about 981 nm.
This tandem of characteristics has far-reaching implications, specially in the construction of compact but powerfull lasers.
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At the same time, a shorter laser wavelength can be received; it is possible to work using a quantum defect well underneath 1%. For a consequence, the heat era may be so smaller that this partly compensates the decrease thermal conductivity.