Lasers for science and industry that meet the highest standards of our customers. We develop and manufacture narrow linewidth lasers to scale quantum computing, femtosecond lasers for extra bright microscopy images, and reliable lasers for semiconductor inspection and industrial metrology.
All Wavelengths
With 190 nm to 0.1 THz we cover the widest wavelength spectrum on the market. This is part of our mindset. But we also embrace all wavelengths of creativity and humor that make TOPTICA, well… TOPTICA.
Empowering Your Applications
QUANTUM TECHNOLOGIES
Long coherence time for high qubit fidelity
QUANTUM TECHNOLOGIES
Long coherence time for high qubit fidelity
Our ultra-stable clock laser systems are an important part of our solutions for quantum 2.0 applications. Their linewidth is reduced to less than 1 Hz via frequency stabilization, ideal for working with narrow atomic transitions in quantum computing. With industrial-grade quality and 19” rack integration option it's the scalable choice for driving up the qubit count.
LIFE SCIENCE & MEDICAL
Brighter images for two-photon microscopy
LIFE SCIENCE & MEDICAL
Brighter images for two-photon microscopy
In two-photon microscopy, peak-power is brightness! Our femtosecond lasers provide short pulses, high power, and most importantly a clean temporal pulse shape. The fiber coupling is a game-changer for simplifying multi-photon microscopy. No mirror alignment, no power meter, just automated fiber coupling.
MEASUREMENT & PROCESSING
Activate innovation in semiconductor inspection
MEASUREMENT & PROCESSING
Activate innovation in semiconductor inspection
The next generation lasers for semicon is reliable, small and has a low cost of ownership. No more bulky and power hungry gas lasers. Our all diode or fiber approach makes us the ideal partner for driving future innovations in the cutting-edge fields of optical inspection (e.g. brightfield and darkfield microscopy) and metrology techniques (e.g. ellipsometry or scatterometry).
Proven by Experts
The company, now named TOPTICA, has grown and thrived over 30 years to become the undisputed world market leader in scientific diode lasers.
Theodor W. Hänsch, Nobel Lauretate in Physics (2005), Max Planck Institute of Quantum Optics, Germany
Our DFC system has been running reliably for more than 8 years now and only needed two minor realignments. After our lab's relocation TOPTICA supported us with offering a maintenance service.
Dr. Caroline Champenois, Research director and group leader
CNRS, Aix-Marseille University, France
It was TOPTICA's characteristically pleasant collaborative style that was essential for the success of our project.
Graefelfing, Germany | March 26, 2026TOPTICA Photonics announces the launch of its X-band Metrological Microwave Solution (X-MMS), a commercially available ultra-low-noise microwave source that ranks among the purest signals achieved worldwide. Developed using photonic technology, the system transfers the stability of an optical reference into the microwave domain, enabling unprecedented signal purity and stability in an industrial-grade platform.
From Optical Stability to Microwave Precision
Unlike conventional electronic microwave sources, the X-MMS derives its signal from an extremely stable laser using optical frequency division. This approach leverages the superior performance of optical resonators to generate a 9.6 GHz microwave signal with exceptionally low phase noise and high frequency stability.
Benchmark Performance in Phase Noise and Stability
The system achieves a single-sideband phase noise of –102 dBc/Hz at 1 Hz offset and reaches below -166 dBc/Hz at higher offset frequencies, placing it among the top-performing microwave sources reported to date. Its fractional frequency instability is as low as 2.8 × 10⁻¹⁶ at 1 second averaging time. Such performance is critical for demanding applications including atomic clocks, radio astronomy, frequency metrology, and emerging quantum technologies. These fields rely on ultra-stable microwave signals to ensure precise timing, synchronization, and measurement accuracy.
Broader impact of Quantum Technologies
“This is an exciting time to see critical advances in quantum technologies benefiting other fields.” – says Dr. Mikhail Volkov, Director of Research in Quantum Technologies at TOPTICA. “Built entirely from industry-grade TOPTICA components developed for quantum applications, our commercial X-band microwave solution brings metrology-grade performance to an industry-ready platform. See how our phase-noise compares with the world’s best results in the accompanying white paper – you may do a double take.”
Core Technology: Difference Frequency Comb
At the core of the system is TOPTICA’s Difference Frequency Comb technology, which enables intrinsically offset-free operation and contributes to both low noise and long-term stability. The platform can also be referenced to external standards such as atomic clocks or GPS signals, ensuring SI-traceable measurements for real-world applications.
Bringing Ultra-Pure Microwaves to Applications
Metrology-grade local-oscillator performance opens new possibilities in advanced test and measurement and in the development of compact, high-end RF systems. X-MMS enables faster, more accurate measurements and accelerates high-end RF development. This development reflects a broader trend in photonics, where advances in laser and frequency comb technologies are enabling the transfer of scientific breakthroughs into practical tools for industry.
The full technical background and performance data are outlined in a recently published white paper "X-BAND METROLOGICAL MICROWAVE SOLUTION" by Sebastian Müller, Dr. Mikhail Volkov, and Dr. Thomas Puppe.
Graefelfing, Germany | March 26, 2026 TOPTICA Photonics announces the launch of its X-band Metrological Microwave Solution (X-MMS), a commercially available ultra-low-noise microwave source that ranks among the purest signals achieved worldwide. Developed using photonic technology, the system transfers the stability of an optical reference into the microwave domain, enabling unprecedented signal purity and stability in an industrial-grade platform.
From Optical Stability to Microwave Precision
Unlike conventional electronic microwave sources, the X-MMS derives its signal from an extremely stable laser using optical frequency division. This approach leverages the superior performance of optical resonators to generate a 9.6 GHz microwave signal with exceptionally low phase noise and high frequency stability.
Benchmark Performance in Phase Noise and Stability
The system achieves a single-sideband phase noise of –102 dBc/Hz at 1 Hz offset and reaches below -166 dBc/Hz at higher offset frequencies, placing it among the top-performing microwave sources reported to date. Its fractional frequency instability is as low as 2.8 × 10⁻¹⁶ at 1 second averaging time. Such performance is critical for demanding applications including atomic clocks, radio astronomy, frequency metrology, and emerging quantum technologies. These fields rely on ultra-stable microwave signals to ensure precise timing, synchronization, and measurement accuracy.
Broader impact of Quantum Technologies
“This is an exciting time to see critical advances in quantum technologies benefiting other fields.” – says Dr. Mikhail Volkov, Director of Research in Quantum Technologies at TOPTICA. “Built entirely from industry-grade TOPTICA components developed for quantum applications, our commercial X-band microwave solution brings metrology-grade performance to an industry-ready platform. See how our phase-noise compares with the world’s best results in the accompanying white paper – you may do a double take.”
Core Technology: Difference Frequency Comb
At the core of the system is TOPTICA’s Difference Frequency Comb technology, which enables intrinsically offset-free operation and contributes to both low noise and long-term stability. The platform can also be referenced to external standards such as atomic clocks or GPS signals, ensuring SI-traceable measurements for real-world applications.
Bringing Ultra-Pure Microwaves to Applications
Metrology-grade local-oscillator performance opens new possibilities in advanced test and measurement and in the development of compact, high-end RF systems. X-MMS enables faster, more accurate measurements and accelerates high-end RF development. This development reflects a broader trend in photonics, where advances in laser and frequency comb technologies are enabling the transfer of scientific breakthroughs into practical tools for industry.
The full technical background and performance data are outlined in a recently published white paper "X-BAND METROLOGICAL MICROWAVE SOLUTION" by Sebastian Müller, Dr. Mikhail Volkov, and Dr. Thomas Puppe.
TOPTICA Launches TeraScan ultra: Redefining Terahertz Precision with 1 Hz Spectral Resolution
TOPTICA Photonics, a global leader in precision laser systems, proudly announces the launch of the TeraScan ultra – an ultra-high-precision continuous-wave (cw) terahertz platform featuring comb-locked stability and unmatched spectral resolution down to 1 Hz.
The TeraScan ultra is designed to meet the most demanding requirements in THz communications research, channel sounding, wafer inspection, and high-resolution spectroscopy. With a bandwidth of up to 5 THz and ultra-low phase noise, it sets a new benchmark in the generation and control of tunable terahertz radiation.
At the heart of the system are two diode lasers – one tunable, one fixed – both locked to a single optical frequency comb. A photomixer emitter converts the optical beat signal into a tunable, monochromatic THz wave. TOPTICA’s proprietary “endless frequency shifter” ensures seamless frequency tuning while maintaining absolute control over phase and frequency – a crucial requirement for applications like photonic vector network analysis.
The system uses state-of-the-art InGaAs photomixers: a photodiode emitter and a Rh:InGaAs photomixer receiver, both packaged into compact, fiber-coupled modules. Operation modes include fixed frequency, sweep, and triggered step scan – fully software-controlled.
TOPTICA’s TeraScan ultra is ideal for researchers who demand ultimate frequency stability, scanning flexibility, and sub-Hz phase coherence across the full terahertz spectrum.
Request a demo or learn more at: www.toptica.com/resolution
TOPTICA Photonics, a global leader in precision laser systems, proudly announces the launch of the TeraScan ultra – an ultra-high-precision continuous-wave (cw) terahertz platform featuring comb-locked stability and unmatched spectral resolution down to 1 Hz.
The TeraScan ultra is designed to meet the most demanding requirements in THz communications research, channel sounding, wafer inspection, and high-resolution spectroscopy. With a bandwidth of up to 5 THz and ultra-low phase noise, it sets a new benchmark in the generation and control of tunable terahertz radiation.
At the heart of the system are two diode lasers – one tunable, one fixed – both locked to a single optical frequency comb. A photomixer emitter converts the optical beat signal into a tunable, monochromatic THz wave. TOPTICA’s proprietary “endless frequency shifter” ensures seamless frequency tuning while maintaining absolute control over phase and frequency – a crucial requirement for applications like photonic vector network analysis.
The system uses state-of-the-art InGaAs photomixers: a photodiode emitter and a Rh:InGaAs photomixer receiver, both packaged into compact, fiber-coupled modules. Operation modes include fixed frequency, sweep, and triggered step scan – fully software-controlled.
TOPTICA’s TeraScan ultra is ideal for researchers who demand ultimate frequency stability, scanning flexibility, and sub-Hz phase coherence across the full terahertz spectrum.
