Abstract
We report on the development of an extended-cavity, low-threshold femtosecond Cr4+:forsterite laser operating near 1270 nm. The resonator was end-pumped by a continuous-wave Yb-fiber laser at 1060 nm. The 195-MHz short cavity could be operated with absorbed threshold pump powers as low as about 300 mW. To scale up the pulse energy, the cavity length was increased by using a q-preserving multipass cavity (MPC) consisting of a flat and a curved (R = 4 m), notched high-reflector. Kerr-lens mode locking was used to generate femtosecond pulses and double-chirped mirrors were included in the cavity for dispersion compensation. With an absorbed pump power of 1250 mW, the mode-locked laser produced 4 nJ of pulse energy at an average output power of only 47 mW. The corresponding repetition rate of the extended cavity was 11.7 MHz. The pulse-width was 90 fs and the spectral bandwidth was 23 nm, corresponding to a time-bandwidth product of 0.37.
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References
G. J. Tearney, M. E. Brezinski, B. E. Bouma, S. A. Boppart, C. Pitris, J. F. Southern, and J. G. Fujimoto, Science 276, 2037 (1997).
C. Spielmann, N. H. Burnett, S. Santania, R. Koppitsch, M. Schnurer, C. Kan, and M. Lenzner, Science 278, 661 (1997).
M. Drescher, M. Hentschel, R. Kienberger, M. Uiberacker, V. Yakovlev, A. Scrinzi, T. Westerwalbesloh, U. Kleineberg, U. Heinzmann, and F. Krausz, Nature 419, 803 (2002).
D. Herriot, H. Kogelnik, and R. Kompfner, Appl. Opt. 3, 523 (1964).
S. H. Cho, B. E. Bouma, E. P. Ippen, and J. G. Fujimoto, Opt. Lett. 24, 417 (1999).
A. Sennaroglu and J. G. Fujimoto, Opt. Express 11, 1106 (2003).
A. M. Kowalevicz, A. T. Zare, F. X. Kärtner, J. G. Fujitimo, S. Dewald, U. Morgner, V. Scheuer, and G. Angelow, Opt. Lett. 28, 1597 (2003).
A. Sennaroglu, A. M. Kowalevicz, F. X. Kärtner, and J. G. Fujimoto, Opt. Lett. 28, 1674 (2003).
J. Neuhaus, J. Kleinbauer, A. Killi, S. Weiler, D. Sutter, and T. Dekorsy, Opt. Lett. 33, 726 (2008).
R. P. Prasankumar, Y. Hirakawa, A. M. J. Kowalevicz, F. X. Kärtner, J. G. Fujitimo, and W. H. Knox, Opt. Express 11, 1265 (2003).
D. N. Papadopulos, S. Forget, M. Delaigue, F. Druon, F. Balembois, and P. Gerorges, Opt. Lett. 28, 1838 (2003).
V. Z. Kolev, M. J. Lederer, B. Luther-Davies, and A. V. Rode, Opt. Lett. 28, 1275 (2003).
A. Sennaroglu, A. M. Kowalevicz, E. P. Ippen, and J. G. Fujimoto, IEEE J. Quant. Electron. 40, 519 (2004).
A. Sennaroglu, F. X. Kaertner, and J. G. Fujimoto, Opt. Express 15, 13043 (2007).
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Original Text © Astro, Ltd., 2009.
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Çankaya, H., Fujimoto, J.G. & Sennaroglu, A. Low-threshold, 12-MHz, multipass-cavity femtosecond Cr4+: Forsterite laser. Laser Phys. 19, 281–284 (2009). https://doi.org/10.1134/S1054660X09020212
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DOI: https://doi.org/10.1134/S1054660X09020212