VisUV

High Power UV to Visible Picosecond Laser

VisUV provides clean short pulses and stable timing across key UV and visible wavelengths, including deep UV lines as well as 488 nm and 532 nm.
VisUV high-power UV–visible picosecond laser module for spectroscopy and microscopy experiments.

Key Benefits

Available as single-, dual-, or triple-wavelength configuration
Enhanced resolution
High measurement stability
Reliable long-term performance
Easy integration & operation
Flexible excitation schemes

Available Configurations

Wavelengths

Wavelength (±10) [nm]
Type
Pulse (FWHM) [ps]
Max. rep. rate [MHz]
Avg. power [mW]
CW power [mW]
266
VisUV-266-355-532
< 85
80
2
-
266
VisUV-266
< 85
80
2
-
266
VisUV-266-MIC
< 85
80
1
-
280
VisUV-280-560
< 85
80
1
-
295
VisUV-295-590
< 85
80
500
-
355
VisUV-266-355-532
< 85
80
5
-
355
VisUV-355
< 85
80
10
-
488
VisUV-488
< 60
80
50
-
532
VisUV-266-355-532
< 85
80
250
-
532
VisUV-532
< 85
80
300
-
532
VisUV-532-HC
< 500
80
750
-
532
VisuV-532-HP
< 1000
80
750
-
561
VisUV-560
< 85
80
50
-
561
VisUV-280-560
< 85
80
150
-
589
VisUV-295-590
< 85
80
60
-
Detail explanations and measurements conditions for the listed specifications are provided in the datasheet.

Specifications

Available wavelength266 to 590 nm
Spectral width<< 1 nm
Polarization Extinction Ratio (PER) > 1:300 (> 25 dB)
Power stability (12 hours) (ΔT (ambient) < 0.5 K) < 3 % RMS
Other optical specs (power, pulse, beam shape)See wavelengths table
RangeUser selectable: 80, 40, 20, 10, 5 or 2.5 MHz (80 MHz base frequency) 1 000, 500, 250, 125, 62.5 or 31.25 kHz (1 MHz base frequency)
via NIM Inputvia TTL Input
Range< 1 Hz to 80 MHz< 1 Hz to 80 MHz
Amplitude- 5 to + 5 V (maximum limits)
Trigger levelfixed trigger level at - 400 mVadjustable between - 1 and + 1 V
ConnectorNIM-CAMACBNC
Amplitude< - 800 mV into 50 Ohms (NIM)
ConnectorSMA
TimingSynchronous to the pulse repetition rate
Trigger in (NIM) to sync out Typ. 9 ± 1 ns
Trigger in (NIM) to optical outTyp. 80 ns
Sync out to optical out Typ. 70 ns
For multiple optical outputs: Max time delay between different output pulses< 1 ns
ConnectorUSB Type-C 3.0
USB version2.0
CompatibilityPicoQuant Laser Driver Software under Windows 10
ConnectorSub-D9 female
Baud rate 115200
Data 8 bit
Parity none
Stop 1 bit
Connector LEMO, PicoQuant proprietary interface to connect to dedicated Sepia Extention Module SEM 828
Compatibility PicoQuant Laser Driver Software under Windows 10
Connector SMA female
Connector4 pin LEMO EGG.00.304.CLL female
Size (l × w × h)352 × 336 × 82.5 mm
Weight Single beam versions typ. 6.5 kg, multi-beam versions up to 9 kg

Download the datasheet here.

Laser Safety Warning Label (Class 3B, Class 4)
Laser Safety Warning Label (Class 3B, Class 4)

All Information given here is reliable to our best knowledge. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications and external appearances are subject to change without notice.

Pulse. Versatile. Power. UV at its Best.

Stable and Precise Excitation for Advanced Research

Broad Wavelength Coverage and Flexible Pulse Control

VisUV is a versatile high-power UV to visible picosecond laser that delivers clean, short pulses and stable timing across key wavelengths including deep-UV lines as well as 488 nm and 532 nm. Any wavelength is available individually or in combination with one or two other wavelengths. Built on a master oscillator fiber amplifier (MOFA) architecture, it provides < 85 ps pulse widths with exceptional beam quality (M² down to 1.02), enabling precise excitation and efficient fluorescence generation. The available repetition rates range from single shot to 80 megahertz and support a smooth adaptation to a wide variety of spectroscopy and microscopy workflows. Designed for demanding UV excitation, multicolor configurations and time-resolved measurements, VisUV offers reliable high-quality performance in a compact stand-alone platform. 

Temporal emission profiles of the VisUV-280 picosecond laser (blue) and the PLS-280 pulsed LED (grey). The VisUV delivers pulses of ~80 ps FWHM, compared to ~750 ps for the LED source.

Advancing Lifetime Measurements with 280 nm Excitation

Excitation in the deep-UV range around 280 nm opens access to intrinsic protein fluorescence and enables highly sensitive lifetime analysis of aromatic amino acids such as tryptophan. When short picosecond pulses with high stability and narrow spectral width are used, even subtle structural or environmental changes become measurable with excellent temporal resolution and significantly reduced acquisition times.

Wide-Field Microscopy with Visible Picosecond Excitation

Wide-field microscopy is increasingly used for fast, parallel imaging of large fields of view in both life and materials science. Visible picosecond excitation at 488 nm and 560 nm provides efficient fluorophore excitation while maintaining low phototoxicity and high temporal precision. This makes these wavelengths particularly well suited for wide-field fluorescence imaging, including time-resolved and lifetime-based approaches.

Composite fluorescence lifetime images of three organoids acquired using volumetric light-sheet FLIM across a depth of 70 µm. The data show lifetime-based signal separation in 3D with 1 s acquisition time per plane. Adapted from Dunsing-Eichenauer et al., Communications Biology (2025).

488 nm and 532 nm in Modern Luminescence Research

Excitation at 488 nm and 532 nm is essential across life and materials science, as these wavelengths efficiently address a wide range of fluorescent probes and functional labels. They enable fast, low-photodamage measurements with high photon efficiency, supporting lifetime analysis, multiplexed readouts and quantitative studies. This makes them powerful tools for investigating dynamic processes in complex biological samples and advanced material systems.

Fiber Coupled Operation Available

For VisUV, a fiber coupled output is available, supporting both single mode and multi-mode fibers. Typical efficiencies are above 60 % in single mode and above 80 % in multi-mode. Each configuration is aligned in-house to ensure a clean and dependable beam at the fiber exit.

Relevant for Your Research​

Matching Applications & Methods​

Switcher A&M
Schematic illustration of quantum key distribution showing single photons exchanged between Alice and Bob while eavesdropping by Eve introduces detectable disturbances.
Quantum Optics
In-Depth Scientific Resources

Scientific Resources

Access in-depth application notes and scientific posters with detailed methods, measurement data, and real-world use cases.

Poster: 280 nm Picosecond Laser for High Speed Lifetime Measurement

Poster presenting a 280 nm picosecond UV laser for fast fluorescence lifetime measurements of proteins, enabling higher signal intensity and faster TCSPC analysis.

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Technical Documentation and Data

Technical Downloads

Datasheet VisUV

Describing high-power picosecond lasers from 266–590 nm with <85 ps pulses, up to 80 MHz repetition rate and flexible multi-wavelength configurations.

Dimension Sheet VisUV

Showing mechanical layout, mounting points, C-mount interfaces, and overall dimensions for integration into optical setups.

Expand Your System

Complete your setup

Combine compatible components to build a complete system tailored to your experimental requirements and measurement workflows.

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Large, easy-to-align active area
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