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TOPTICA?s CLS delivers 10?¹?-level frequency stability in a robust, deployable system
Ultra-Stable Clock Laser for Real-World Quantum Applications
Gräfelfing, 09.04.2026 (PresseBox) - TOPTICA Photonics is strengthening its position in ultra-stable laser technology with its Clock Laser System (CLS), designed to deliver reliable and ultra-low phase noise optical frequency references for quantum technologies, precision metrology, and advanced sensing.
As quantum applications transition from research labs to real-world deployment, demand is growing for laser systems that combine highest frequency stability with operational robustness. The CLS addresses this need by integrating narrow-linewidth external cavity diode laser technology with a highly stable optical reference.
?Our focus was to combine ultimate frequency stability with a system design that is robust and practical to operate. This enables users to benefit from ultra-stable laser performance without the complexity and maintenance efforts of laboratory setups,? says Dr. Florian Schäfer, Development Engineer Laser Reference at TOPTICA.
The system achieves frequency instabilities at the 10?¹? level and phase noise levels down to -90 dBc/Hz. It is engineered to minimize environmental influences such as temperature fluctuations, vibrations, and optical power variations. This ensures stable operation over extended periods, even outside controlled laboratory environments.
Available in both tabletop and rack-mounted configurations and across a wide wavelength range, the CLS can be flexibly integrated into applications including optical atomic clocks, quantum computing, quantum simulation, and optical frequency combs.
Further details are presented in the white paper ?Design, Implementation, and Performance of the TOPTICA Clock Laser System? by Dr. Florian Schäfer, Dewni Pathegama, and Dr. Filippo Bregolin, describing the system design, stabilization approach, and performance validation of the CLS.
As quantum applications transition from research labs to real-world deployment, demand is growing for laser systems that combine highest frequency stability with operational robustness. The CLS addresses this need by integrating narrow-linewidth external cavity diode laser technology with a highly stable optical reference.
?Our focus was to combine ultimate frequency stability with a system design that is robust and practical to operate. This enables users to benefit from ultra-stable laser performance without the complexity and maintenance efforts of laboratory setups,? says Dr. Florian Schäfer, Development Engineer Laser Reference at TOPTICA.
The system achieves frequency instabilities at the 10?¹? level and phase noise levels down to -90 dBc/Hz. It is engineered to minimize environmental influences such as temperature fluctuations, vibrations, and optical power variations. This ensures stable operation over extended periods, even outside controlled laboratory environments.
Available in both tabletop and rack-mounted configurations and across a wide wavelength range, the CLS can be flexibly integrated into applications including optical atomic clocks, quantum computing, quantum simulation, and optical frequency combs.
Further details are presented in the white paper ?Design, Implementation, and Performance of the TOPTICA Clock Laser System? by Dr. Florian Schäfer, Dewni Pathegama, and Dr. Filippo Bregolin, describing the system design, stabilization approach, and performance validation of the CLS.
Über "TOPTICA Photonics SE":
TOPTICA has been developing and producing high-end laser systems for more than 25 years. The portfolio includes optical quantum clocks, rack integrated laser systems, frequency combs, diode lasers, ultrafast fiber lasers, terahertz systems, and continuous wave fiber lasers and amplifiers.
These are used for demanding scientific and industrial applications in the fields of biophotonics, industrial metrology and quantum technology. TOPTICA is known for the widest wavelength coverage of lasers on the market and also offers high-power lasers at exotic wavelengths from 190 nm to 0.1 THz (3 mm).
TOPTICA's 600+ employees worldwide take pride in developing customized systems. OEM customers, scientists and more than a dozen Nobel Prize winners confirm the exceptional specifications, reliability and longevity of TOPTICA's laser systems.
These are used for demanding scientific and industrial applications in the fields of biophotonics, industrial metrology and quantum technology. TOPTICA is known for the widest wavelength coverage of lasers on the market and also offers high-power lasers at exotic wavelengths from 190 nm to 0.1 THz (3 mm).
TOPTICA's 600+ employees worldwide take pride in developing customized systems. OEM customers, scientists and more than a dozen Nobel Prize winners confirm the exceptional specifications, reliability and longevity of TOPTICA's laser systems.