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Optics Letters

Optics Letters


  • Vol. 28, Iss. 18 — Sep. 15, 2003
  • pp: 1674–1676

High-performance, compact, prismless, low-threshold 30-MHz Ti:Al2O3 laser

Alphan Sennaroglu, Andrew M. Kowalevicz, Franz X. Kärtner, and James G. Fujimoto  »View Author Affiliations

Optics Letters, Vol. 28, Issue 18, pp. 1674-1676 (2003)

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We describe the design and operation of a compact femtosecond Ti:Al2O3 laser based on a novel multipass cavity (MPC) design. The laser is all solid state, has prismless dispersion compensation with double-chirped mirrors, and uses a tight-focusing geometry to facilitate efficient low-threshold operation. We increase output pulse energies by extending the resonator length with a compact, scalable MPC, which preserves the characteristics of the Gaussian beam for the short cavity. Although the effective cavity length is ~5 m, an extremely compact laser that measures only 30 cm×45 cm is achieved. With only 1.5 W of pump power, the laser generates 23-fs pulses at a repetition rate of 31.25 MHz and with 88 mW of average output power, corresponding to 2.8 nJ of pulse energy.

© 2003 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(320.7090) Ultrafast optics : Ultrafast lasers

Alphan Sennaroglu, Andrew M. Kowalevicz, Franz X. Kärtner, and James G. Fujimoto, "High-performance, compact, prismless, low-threshold 30-MHz Ti:Al2O3 laser," Opt. Lett. 28, 1674-1676 (2003)

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