Top KYW Crystal Secrets
Top KYW Crystal Secrets
Blog Article
The gain bandwidth e.g. of Yb:KGW and Yb:KYW is extremely massive compared with that of Yb:YAG. This permits for large wavelength tunability and for Considerably shorter pulse durations from manner-locked lasers. Values very well beneath 100 fs are already attained with passive method locking.
The comparison with glasses is acceptable since the significant get bandwidth allows e.g. tungstate femtosecond lasers and tunable lasers to contend with glass lasers.
The Yb:KYW crystal’s proficiency in light-weight absorption at all-around 981 nm makes the crystal well matched for diode pumping. It's even more Improved by its outstanding efficiency in this method, coupled with its lower quantum defect.
Color-coded reflectivity of a Bragg mirror as a operate of wavelength and angle in the incident beam.
Optical structure of a laser with immediate pumping with the radiation of semiconductor injection lasers. LD is surely an IPG Photonics laser diode with fiber output from the radiation, WP can be a half-wave plate, CL is often a collimating lens, FL is often a focusing lens, AE is surely an active ingredient made out of an Yb:KYW crystal, DM is often 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 constructions brings about a purely natural birefringence, assisting to stay away from thermally induced polarization rotation and depolarization decline.
FIG. 1. Optical layout of the laser with direct pumping Using the radiation of read more semiconductor injection lasers. LD is definitely an IPG Photonics laser diode with fiber output
five mm apart from the center on the beam caustic. To be able to Check out the method matching simulation, we executed the experiment with Ng-Reduce crystal oscillator, which was made previously and in a very same condition with simulation [eleven]. As proven in Figure three(b) with purple dots and line, the CW output energy is highly dependent on the placement of laser crystal as well as experimental final result coincides well with simulation final result. To be a Notice, multimode Procedure transpired in experiment in the event the dimension of your pump beam is greater than TEM00 cavity manner and it leads to larger CW output electrical power within the displacement area below three.5 mm.
EKSMA Optics makes use of cookies to provde the best buying knowledge. When you keep on to work with our expert services, We'll assume that you conform to the use of these kinds of cookies.
... Not merely the posture of crystal while in the cavity but will also the amplification axis of crystal influences the laser Procedure considerably, since the absorption and emission cross sections of your crystal are quite diverse according to the orientation with the crystal.
There won't be any merchandise inside your cart. Incorporate products in your cart and request an official quote or purchase on the web Subtotal
This tandem of attributes has far-reaching implications, specially in the construction of compact nevertheless powerfull lasers.
EKSMA Optics employs cookies to provide you with the greatest shopping practical experience. For those who proceed to utilize our providers, We'll assume that you just comply with using this sort of cookies.
Simultaneously, a shorter laser wavelength can be received; it is feasible to work that has a quantum defect properly beneath one%. Like a consequence, the warmth generation is usually so modest this partly compensates the decrease thermal conductivity.