01 Mar 2017


The first system in the 100J generation of DiPOLE lasers


​​​​​​​​DiPOLE100 labelled ​​layout


​The DiPOLE100 laser builds on the initial DiPOLE design to increase the output energy. This next generation system is an order of magnitude more powerful than the initial DiPOLE system. To achieve this increase in power, the system has two amplifier heads in series, as seen in Figure 1. The first laser head amplifies the beam to 10 J of energy and the second further amplifies the beam to an energy of 100 J. When first operational, this laser system was the world’s first kilowatt-level, diode-pumped, solid-state laser producing pulses at a record-breaking energy of 100 J at an unprecedented r​epetition rate of 10 Hz.

D100 new image.png 

Figure 1 - 3D view of the DiPOLE100 system.

Parameters list:

Pulse energy   up to 150 J
Wavelength   1030 nm
Pulse duration   2-10 ns
Repetition rate   up to 10 Hz
Output beam size   75x75 mm
Optical to optical efficiency  22.0%


In 2017, CALTA reported pulsed laser operation of 105 J, 10 ns pulses at a 10 Hz repetition rate [1]. The energy characteristics and the long term stability of the output beam are shown in the graphs in Figure 2.



​                                             (a)                                                                                                        (b)

Figure 2 - Experimental data showing​ (a) the relationship between output energy and optical efficiency and (b) the energy stability of the laser over an hour.​

Contact: Clarke, Danielle (STFC,RAL,CLF)