SHG pro

Frequency doubling cavity

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

SHG pro

Frequency doubling cavity

Nonlinear frequency conversion techniques access wavelengths that cannot be generated directly from laser diode technology.

The SHG pro is the device of choice, if existing lasers are to be frequency doubled. Designed in TOPTICA’s pro technology, it unites highly stable performance and convenient operation. Mirror and crystal holders can be adjusted without opening the resonator cover. A wide range of non-linear crystals covers SHG wavelengths from 205 to 800 nm. Together with the customer TOPTICA will find the optimum parameters for frequency doubling. A professional installation by TOPTICA ensures the specified performance is achieved.

With the Autoalign option the systems can offer a fully-automated push-button coupling optimization into the SHG cavity and the output fiber.

Your Benefits

For all atoms and ions

Lasers at all laser wavelengths between 205 nm and 685 nm to address most of the relevant visible and UV transitions for quantum applications.

Customizable

Configure your SHG with the features you require. Every quantum system has its own personality. That’s why our SHG systems are modular. Need a variable probe beam? Easy.

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.

Color centers (NV/Si)

Nitrogen-Vacancy (NV) and Silicon-Vacancy (SiV) centers are two prominent types of color centers (optically active point defects) in diamond, widely studied for their potential in quantum technologies such as sensing, metrology, and computing. They offer complementary properties for different applications.

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

AutoAlign

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

Fiber delivery

Fiber Delivery (FD) is optionally available with TOPTICA's patented fiber coupler FiberDock and a suitable polarization maintaining (PM) fiber. FiberDock provides highest single-mode fiber coupling efficiencies, easy alignment and at the same time highest stability. For most lasers, we specify a PER behind fiber of >20 dB with our Fiber Delivery option. Please also inquire about Long Life and High Power fibers as well as fiber splitters. Optical isolation is mandatory for fiber coupled diode laser systems.

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.

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).

Double Piezo Lock

High-bandwidth stabilization of the SHG pro resonator.