Where to Buy Frequency Quadrupling Devices

The HarmoniXX FHG – Fourth Harmonic Generation – is a frequency converter for quadrupling the frequency of ultrashort pulse lasers.

The focus is on user-friendliness and a compact design. By featuring a quick exchange of optics, the HarmoniXX devices can be used for a wide pulse duration range, from femtoseconds (fs) to several picoseconds (ps). All units are optimized for highest conversion efficiency at various laser power levels. They also display minimum pulse broadening while maintaining good spatial beam profile.

For more details, see our specifications.

HC Photonics (HCP) offers both commercial off-the-shelf (COTS) and custom PPMgO:LN or PPMgO:LT based frequency quadrupling devices for pump wavelength ranging from 1420 nm to 5000 nm.

The product mix includes bare crystals and plug-and-play fibered mixers with either one cascaded design or two-stage conversion configurations.

A typical reference spec is the 488 nm fibered mixer converted from 1952 nm fiber laser.

Please contact us for solutions to meet your specific demands.

Hangzhou Shalom EO offers nonlinear crystals for frequency quadrupling applications, which includes: BBO crystals, KDP and KD^*P crystals, in addition to PPLN waveguides. Both off-the-shelf and customized products are available.

EKSMA Optics offers a wide variety of nonlinear materials which are well suited for quadrupling applications starting with different laser wavelengths. The most popular choices are BBO and KDP crystals. We also have the even more efficient custom CLBO crystals.

TOPTICA provides frequency-quadrupled continuous-wave diode and fiber lasers based on two cascaded frequency-doubling stages. Available wavelengths range from 190 nm to 390 nm with up to 10 nm of tuning. Furthermore, the novel Super-UV technology guarantees long-term stable operation and higher powers at DUV wavelengths.

See us at SPIE Photonex + Vacuum Expo 2021, Sept. 28–30!