Through Cobolt AB, a renowned Swedish laser manufacturer with over 20 years of proven expertise, the HÜBNER Photonics division delivers one of the industry’s most comprehensive portfolios of compact, high-performance lasers. Our offering includes:

• Single-frequency CW lasers
• Diode lasers
• Multi-line lasers
• Q-switched lasers

Spanning the full UV–Visible–NIR spectrum, Cobolt lasers are trusted by leading instrument manufacturers and researchers worldwide. They are widely used in demanding applications such as:

• Biomedical research
• Clinical diagnostics
• Material science
• Particle analysis
• Semiconductor metrology
• On-line quality and process control

Our mission is to expand access to laser-based technologies that enhance quality of life and support a more sustainable future.

Cobolt’s success is built on a combination of sophisticated laser design and our proprietary HTCure™ Technology, enabling advanced manufacturing of lasers with exceptional reliability and performance. These compact, rugged systems are engineered to meet the stringent requirements of both scientific research and industrial environments.

Popular applications for Cobolt lasers

Cobolt lasers are renowned for their exceptional reliability and long operational lifetimes, making them a trusted choice across demanding scientific and industrial applications.

We offer some of the most unique solutions on the market supporting innovation in fields such as microscopy, spectroscopy, holography, and quantum research.

Cobolt lasers for high-resolution Raman spectroscopy

Cobolt offers one of the world’s most extensive ranges of compact lasers, specifically engineered for high-resolution Raman spectroscopy.

Thanks to stable single-frequency operation and Cobolt’s ultra-robust HTCure™ thermo-mechanical architecture, our diode-pumped lasers (DPLs) deliver:

• Narrow linewidths < 1 MHz across a wide operating temperature range
• Extremely low spectral drift < 1 pm
• Exceptional spectral purity > 80 dB (typically much higher)

These features enable precise detection of low-frequency Raman signals, even extending into the terahertz (THz) regime, making Cobolt lasers ideal for the most demanding spectroscopic applications.

Explore the Cobolt 08-01 series for your Raman experiments.

Cobolt lasers for Holography

The growing interest in holographic techniques and holographic optical elements (HOEs)—especially in virtual reality (VR) and augmented reality (AR), is driving demand for advanced laser technologies. These applications require lasers that offer new wavelengths, higher output powers, and precise control over beam parameters.

Modern holography spans a wide range of uses, including:

• Security holograms on banknotes and passports
• Ultra-realistic full-color 3D object replication
• HOEs for image projection in AR/VR devices

While high-volume HOE replication in the security industry often relies on embossing techniques, AR/VR glasses demand much higher resolution, necessitating laser-based printing for optimal performance.

Cobolt’s portfolio of single longitudinal mode (SLM) diode-pumped lasers (DPLs) is ideally suited for these advanced holography applications. Key features include:

• Wavelength coverage from UV to near-IR
• Stable coherence lengths of hundreds of meters
• Perfect TEM₀₀ beam profiles
• Excellent wavelength stability across wide temperature ranges
• Proven reliability in industrial environments

In the visible spectrum, Cobolt offers a wide selection of fixed-wavelength lasers in the blue, green, and red regions—such as 457 nm, 473 nm, 491 nm, 515 nm, 532 nm, 561 nm, 640 nm, and 660 nm—with output powers reaching up to 0.5 W. This flexibility allows users to select the most suitable wavelengths based on the specific emulsions and illumination sources used in their holographic systems.

For your holographic experiments explore the Cobolt 05-01 series and the Cobolt 04-01 series.

Cobolt lasers for fluorescence microscopy

Modern fluorescence microscopy encompasses a wide array of techniques, from standard laser scanning confocal microscopy, TIRF, and spinning-disc systems to light sheet microscopy and advanced super-resolution methods that manipulate spatial fluorescence signals.

Each technique places unique demands on the excitation sources. However, a common requirement across most modalities is the need for multiple excitation wavelengths to support an ever-growing palette of fluorophores and enable high-quality multi-color imaging.

At HÜBNER Photonics, we offer a broad selection of single- and multi-line Cobolt lasers tailored for fluorescence microscopy. Our Cobolt 06-01 diode lasers are particularly well-suited for confocal systems such as cLSM, spinning disc, and TIRFM, thanks to their fast modulation capabilities and excellent on/off control, including true off-state.

Cobolt lasers also support super-resolution techniques such as STORM, PALM, and STED, offering high output powers and a wide range of wavelengths.

For flexible integration, all Cobolt lasers can be configured into our C-FLEX laser combiner platforms, supporting up to eight lasers in a single, user-friendly system.

Additionally, the Cobolt Skyra offers a compact, permanently aligned multi-line laser solution, perfect for simplifying multi-color excitation in compact microscopy setups. It eliminates the need for in-field alignment and servicing, reducing manufacturing costs and enabling more compact instrument designs. The Skyra is also an excellent solid-state alternative to Ar-ion lasers.

For your experiments with fluorescence microscopy, explore the Cobolt 06-01 series and Cobolt Skyra.

Explore the full portfolio of Cobolt lasers: