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Pulsed Lasers - EPL Series

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Pulsed Lasers - EPL Series


The EPL picosecond pulsed diode lasers are a family of high performance, cost effective excitation sources for fluorescence lifetime measurements.

In Time-Correlated Single Photon Counting (TCSPC) they bridge the gap between the nanosecond flash lamp and expensive mode-locked Titanium sapphire femtosecond lasers. In addition, their external trigger capability enables their use as excitation sources in Multi-Channel Scaling (MCS) mode.

The EPL lasers are pre-adjusted for an optimum pulse width, with particular attention paid to reducing a secondary shoulder characteristic of picosecond diode lasers. The output has a typical pulse width of less than 100 ps.

The EPL lasers are robust, maintenance free, easy to operate and have proprietary beam conditioning optics.


  • Optimised for TCSPC
  • 15 pre-set repetition frequencies
  • from 2.5 KHz to 20 MHz
  • External trigger capability
  • Spectrally purified output
  • Fully integrated & compact design
  • Extremely low RF radiation
  • Optimised collimated beam
  • Drive electronics included

More information about EI EPL Series lasers, please visit Edinburgh Instruments official site at


Fluorescence lifetime, TCSPC measurement

EPL Series can be used as the pulsed source for EI FLS1000 and FS5 TCSPC life time measurement. 

For more information about EI FLS-1000, please visit

For more information about EI FS5, please visit