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Radially polarized mode-locked Nd:YAG laser

2009; Optica Publishing Group; Volume: 34; Issue: 13 Linguagem: Inglês

10.1364/ol.34.002030

1539-4794

Florian Enderli, Thomas Feurer,

Orbital Angular Momentum in Optics

We demonstrate a Nd:YAG laser emitting radially polarized, mode-locked 140 ps long pulses by exploiting the thermally induced birefringence of a Nd:YAG crystal. The laser repetition rate is 82 MHz, the maximum average output power is 3 W, and the beam quality is close to the theoretical value of M2=2.