Where to Buy Nonlinear Frequency Conversion Equipment

If frequency conversion is needed, we offer second harmonic modules and third harmonic modules for some of our most popular lasers. For our Koheras BOOSTIK narrow linewidth laser, we offer the Koheras HARMONIK frequency conversion module that converts 1550 nm or 1050 nm to 780 nm or 525 nm. For our ORIGAMI XP high power ultrafast laser, we offer SHG and THG modules that convert 1030 nm to 515 nm and 343 nm, respectively.

We offer advice on all aspects of nonlinear frequency conversion, e.g. the design of frequency conversion devices, choice of nonlinear materials, simulation of nonlinear conversion. Also: specialized in-house training courses, tailored to your needs.

The Nano4th is an ultra-compact device that converts your femtosecond low-energy IR laser pulses (nJ-range) into 2^nd and 4^th harmonics with best-in-class conversion efficiency. Its industrial-grade design makes it a robust and reliable solution that will extend the capabilities of your laser. The design is easily adaptable to higher pulse energies, up to the microjoule or millijoule level.

TOPTICA provides tunable continuous-wave laser systems including nonlinear frequency conversion for accessing the wavelength range from 190 nm to 4000 nm. The conversion processes are second-harmonic generation and optical parametric generation.

XUUS upconverts ultrafast laser pulses into the Extreme UV (EUV or XUV) or soft X-ray regions of the spectrum. Employing high harmonic generation processes, the output beam inherits the coherent properties of a driving laser such as the KMLabs RAEA with wavelengths that can be tuned from  10 nm to 47 nm. Moreover, customized systems can generate coherent beams with wavelengths as short as 6.5 nm. XUUS employs KMLabs' patented hollow waveguide for the high harmonic upconversion process.

The XUUS hollow-core fiber, or waveguide, architecture enables harmonics generated by the system to be distinguished from other HHG methods, guaranteeing your harmonics originate from the same point in space every time, minimizing any pointing drift. This optimizes repeatability for your experiments. Additionally, the use of a fiber rather than typical gas jet or semi-infinite gas cell target geometries provides superior pressure tunability for phase-matched HHG.

The Stuttgart Instruments Alpha system is a modular, wavelength-tunable laser covering the 700 nm to 20 µm spectral range. It provides ultrafast pulses at MHz repetition rates and milliwatt- to watt-level power. Due to its excellent passive long-term stability, outstanding performance at the shot-noise limit and broad spectral range, it is ideally suited for sensitive IR applications.

The Alpha system can be configured optimum for your application. Its basic version is tunable from 1.35 µm to 4.5 µm, but can be upgraded to higher power, to the VIS (700 – 980 nm), the NIR (1.1 – 1.4 µm) and the MIR range (4.5 – 20 µm). Each module is field upgradable, and the entire system is fully automated and controlled via a user-friendly GUI.

Covesion provides off-the-shelf MgO:PPLN crystals and waveguides, which are available for SHG, SFG, DFG, and OPO interactions. MgO:PPLN supports a wide range of applications such as: quantum computing; mid-infrared generation; atom cooling; terahertz generation and biomedical imaging. Covesion also manufactures a range of ovens and a temperature controller for precision thermal management.

Our U2050 2–5 µm fiber to fiber wavelength conversion module converts mid-infrared 2–5 µm light to 695–877 nm light enabling the mid-infrared light to be measured with low noise visual detector technology.

GWU-Lasertechnik has more than 30 years of experience in lasers and nonlinear optics. We are the pioneer of commercial BBO OPO technology. Our portfolio includes frequency conversion devices like harmonic generators for frequency doubling, tripling or quadrupling and optical parametric oscillators for the generation of widely tunable UV-to-IR laser sources. Furthermore, for all handicraft enthusiast or OEM customers, we offer a broad portfolio of nonlinear crystal materials like LBO, BBO, KTP and PPLN.

Shalom EO offers a vast variety of nonlinear crystals: BBO, KDP and KD^*P, LBO, KTP, HGTR KTP, KTA, BIBO, LiIO₃, LiNbO₃, MgO:LiNbO₃, RTP, ultra-thin BBO, LBO crystals and infrared nonlinear crystals ZnGeP₂ (ZGP).

Our products are excellent for applications ranging from frequency conversion to short-pulse generation. They are used for harmonic generation (SHG, THG, 4HG, 5HG), sum and difference frequency generation (SFG, DFG), for optical parametric oscillators (OPOs) and optical parametric amplifiers (OPAs). Note that for all the products listed above, off-the-shelf and customized products are optional to our customers.

GLOphotonics is offering a unique frequency conversion solution based on hollow core photonic crystal fiber: the CombLas technology. This platform enables the generation of light from the UV up to the mid-IR with very high power spectral density. The Comblas can generate a comb of discrete lines or can be tuned to generate a single specific wavelength.

APE offers well engineered devices for nonlinear frequency conversion of picosecond and femtosecond pulses, involving:

• frequency doubling
• frequency tripling
• frequency qudrupling
• difference frequency generation

Also, we offer optical parametric oscillators and amplifiers.

Radiantis offers second harmonic generators for MHz repetition-rate femtosecond and picosecond Ti:sapphire oscillators with conversion of efficiencies of 50%. The company also provides femtosecond SHG devices to double the 990 – 1550 nm range into the 495 – 775 nm range. Products are fully automated. Customised frequency doublers for other spectral ranges can also be developed.

EKSMA Optics offers a complete portfolio of nonlinear optical crystals: BBO, LBO, KTP, KDP, DKDP, LiIO₃, LiNbO₃, MgO:LiNbO₃, AGS, AGSe, ZGP, GaSe, CdSe from stock or manufactured according to customers specifications or for specific applications.