A new laser scheme for energy scaling with a composite six-mirror cavity

作者：Lei, M.^*; Gong, M.; Liu, Q.; Wang, Y.

来源：Applied Physics B: Lasers and Optics , 2007, 89(2-3): 159-162.

DOI：10.1007/s00340-007-2799-z

• YAG ROD LASER
• COHERENT ADDITION
• HIGH-POWER

We have developed a novel and compact six-mirror cavity configuration to combine four multimode laser modules intracavity for energy scaling. Compared to the conventional 2xN channel scaling schemes, this close-ended six-mirror cavity is simpler, more stable and more practical. Diode-side-pumped rod laser geometry that is appropriate for beam combination is employed in the branch laser module. The characteristics of the output energy and the beam quality are investigated experimentally. With the six-mirror cavity, the output brightness is significantly improved compared to single F-P cavity laser. A single beam output exceeding 453 mJ with 165 mu s duration is achieved, with the combination efficiency of 90.7%.

• 出版日期2007-11
• 单位清华大学