Synchrounouly Pumped Tunable ps-Dye Laser

Sirah’s synchronously pumped Gropius dye laser is a simple and versatile source for tunable pico-second and sub-pico-second pulses in the VIS to NIR range.
The term synchronous pumping refers to matching the cavity round-trip time of the dye laser to an integer multiple of the mode-locking frequency. The resulting output from the Gropius is a train of pulses at 80 MHz repetition rate which can be tuned over a wide spectral range.

Tuning Ranges

Gropius - Tuning Ranges

General Characteristics

Beam Radius 1) 0.6 .. 0.7 mm (typical)
Beam Divergence < 1 mrad (half angle)
Time Bandwidth Product < 0.6
Beam Polarization horizontal


Pump Laser 2) 355 nm / 516 nm / 532 nm, < 25 W power
1 .. 50 ps, 75 .. 80 MHz repetition rate
Ambient Conditions constant temperature in the 20..25° C range
Cooling required for circulator (~ 300 Watt)
Laboratory vibrational isolated optical table, dust-free air (flow box)
Computer Control XP / Vista / Windows 7 / Windows 8 / Windows 10 (32 & 64 bit), USB port


Short Pulse Configuration down to 0.5 ps
Long Pulse Configuration up to 100 ps with additional Etalon

1) at Gropius output port
2) please contact Sirah for compatibility with other pump lasers
3) please contact Sirah for details

Optical Layout

Gropius - Optical Layout


Gropius - Dimensions

All Dimensions in mm.
Specifications are subject to change without notice.

Literature & Downloads

 Datasheet Gropius