PLS-I Series High-Power Nanosecond Pulsed UV–Visible LEDs

High-power nanosecond LED sources spanning the UV-visible range, delivering versatile and stable excitation for diverse scientific and analytical applications.

Key Benefits

• Enhanced excitation performance in the UV–visible range — 355–600 nm coverage for a broad range of fluorescence and analytical applications
• Reliable nanosecond timing — pulse widths down to approximately 1 ns
• Flexible pulsed and CW operation — switch between pulsed, burst, and continuous wave modes
• Stable long-term output — Peltier-stabilised, calibrated performance
• Consistent performance across experiments — linear and max-power calibration modes via Taiko PDL M1
• Low-maintenance, robust design — compact, maintenance-free LED head architecture

UV–Visible LED Sources with Flexible Pulse Control

The PLS-I Series provides high-power nanosecond pulsed LED sources spanning the UV to visible range from 355 to 600 nm in a compact, maintenance-free design. Each LED head delivers short pulse widths, high repetition rates, and strong average power in pulsed or CW operation. All parameters are controlled through the Taiko PDL M1, which enables linear mode, free trigger mode, and max power mode for precise excitation workflows. This combination of spectral coverage, stable output, and flexible timing makes the PLS-I Series suited to a broad spectrum of research applications.

High Pulsed and CW Output Power

High pulsed average power supports efficient excitation in both pulsed and continuous wave operation.

Average Power up to 300 µW

Depending on wavelength, average power levels reach up to 300 µW, with typically around 80 µW in pulsed mode and several hundred microwatts in CW operation.

Pulse Widths Down to ~1 ns

Nanosecond pulse widths down to approximately 1 ns are maintained, with typical values ranging from 1 to 5 ns depending on wavelength and operating conditions. This combination of output power and temporal control enables reliable excitation intensity while preserving well-defined timing characteristics.

Seamless PLS-I Compatibility with Taiko PDL M1

The PLS-I Series is designed exclusively for the Taiko PDL M1 laser driver, creating a unified platform for nanosecond excitation. Taiko provides fully calibrated operation, flexible linear and max-power modes, burst capability, and intuitive local or remote control. This brings LED-based time-resolved workflows onto the same modern driver architecture used for LDH-I laser heads — letting researchers combine picosecond laser and nanosecond LED excitation on a single, consistent platform.

Applications

The PLS-I Series is suited to applications where sub-to-few-nanosecond pulsed, burst, or CW mode operation is important, including:

• Time-resolved fluorescence spectroscopy — sufficient power for excitation wavelengths typically around 300 nm, where the PLS-I Series offers a higher-power alternative to PicoQuant’s classic Sepia-compatible PLS series, with 5–15× more optical power
• Biochemical analysis — reliable nanosecond excitation for a range of biochemical assay formats
• Detection of labelled molecules — compatible with common fluorescent dye labels
• Intrinsic protein fluorescence — suited to natural fluorescence from amino acids such as tryptophan and tyrosine
• Testing of optoelectronic devices — including pin-diodes and PMTs

For applications requiring even higher power, the PLS-I Series offers a more affordable alternative to classic laser-based solutions such as ultrafast lasers with OPO or PicoQuant’s VisUV system.