TA-FHG pro

Amplified, narrow-linewidth, frequency-quadroupled laser

The atoms decide the laser wavelength, not the other way around

TA-FHG pro

Amplified, narrow-linewidth, frequency-quadroupled laser

Nonlinear frequency conversion techniques access wavelengths that cannot be generated directly from laser diode technology. Via two cascaded second harmonic generation stages (SHG pro) this laser systems can access the UV and Deep UV spectral ranges at high powers. Employing ultra-stable seed lasers, power amplification in semiconductor, and a proprietary bow-tie cavity design – all in established pro technology.

For higher powers a (Raman) fiber amplified (FA/RFA) version is available. (LINK auf FA-FHG Seite)

The system includes fully-automated push-button coupling optimization into the TA chip, the SHG and FHG cavity, as well as output power stabilization. The rack-mounted version of TA-SHG pro for integration into T-RACK is available as MSHG pro.

Your Benefits

For all atoms and ions

Lasers at all laser wavelengths between 205 nm and 340 nm to address most of the relevant visible and UV transitions for quantum applications.

High realibility UV power

Durable UV and deep-UV output power.

Narrow linewidth

The DL pro patented design results in a narrow linewidth for applications where a low frequency noise is required.

Customizable

Configure your FHG with the features you require. Every quantum system has its own personality. That’s why our FHG systems are modular. Need a variable probe beam? Easy. Want to integrate a fiber amplifier, manipulate the seed light or add a noise eater? We love those challenges. It’s a bit like Lego for lasers – we click together exactly what you need.

Applications

Quantum physics science

TOPTICA's products are widely and successfully used for scientific applications in fundamental quantum technology. In these fields quantum physics, quantum optics, atom optics, photonics, statistical physics and related fields are investigated in order to understand the basics of quantum technology.

Atom quantum computing & simulation

Atoms are excellent quantum systems for both quantum computing and quantum simulation. They can be ultimately controlled in all of their quantum states and even millions..

Ion quantum computing & simulation

Ions are ideal qubits for quantum computing and simulation due to their excellent isolation and precise quantum-state control.
They are ionized, laser-cooled, and trapped in electromagnetic traps under ultra-high vacuum using specialized lasers and fields.

Quantum communication

Quantum communication is redefining how information is transmitted, secured, and trusted. At the heart of this technological revolution are high-performance laser systems that generate, control, and stabilize light at the quantum level.

Quantum sensing & metrology

Just often we don't realize it in normal life. This is because quantum systems are usually too tiny and are often destroyed in their key properties or their quantum-ness by even subtlest changes in the environment.

Maskless lithography & laser direct writing

In modern microlithographic systems compact violet and UV diode lasers have taken the place of bulky gas lasers or HeCd lasers. The superior performance of diode lasers enable improved up-times, lower cost of ownership and qualities of written features, which haven’t been imagined before this paradigm shift.

Holography & augmented reality

Light-field recording with phase information, for recording of patterns and pseudo-3D images. Coherent diode lasers at 407 nm, 457 nm, 514 nm, 647 nm or other wavelengths in the RGB region, and even in the UV region with power levels of several 100 mW have become the optimal choice for holography – especially in industrial applications. Whereas the original sources were bulky and operated at a fixed wavelength, diode lasers are tunable, so they perfectly match the user requirements.

Options

SUV

A modified FHG cavity design allows for unprecedented DUV output power and stability. Warranty included.

AutoAlign

Automated alignment of beams coupled to cavity. No compromising of passive stability - AutoAlign is only activated on user request.

EOM

An EOM before the doubling cavity allows to independently create the PDH signal for laser locking. Advantageous for maximum mode-hop-free tuning range.

Narrow linewidth

The fundamental master laser is replaced by a narrow-linewidth version. Other master lasers (DFB/DBR) available upon request.

Advanced locking

Various lock options from side-of fringe frequency stabilization to PDH linewidth narrowing available. Modules like DigiLock 110 or PDH/DLC pro can be installed in the DLC ext extension rack, with shortest-possible cable length right next to the laser head. For the most demanding applications you can use the FALC pro (see Laser Locking Electronics).

Advanced locking