Abstract

We report on a passively mode-locked ytterbium-doped fiber oscillator pumped by polarization-combined diodes emitting at a wavelength of 915 nm instead of 976 nm. Stable mode-locked operation based on nonlinear polarization evolution generated a broad spectrum of 140 nm, spanning from 950 to 1090 nm. The output power was 16.3 mW at a repetition rate of 93.1 MHz. External compression using a pair of transmission gratings resulted in pulse durations as short as 21.6 fs, which is equivalent to 6.6 cycle optical pulses at a wavelength of around 1000 nm.

© 2012 Optical Society of America

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2012 (1)

2011 (3)

2010 (2)

2008 (2)

2007 (1)

2006 (1)

2005 (2)

A. Komarov, H. Leblond, and F. Sanchez, Phys. Rev. A 71, 053809 (2005).
[CrossRef]

S. Zhou, L. Kuznetsova, A. Chong, and F. W. Wise, Opt. Express 13, 4869 (2005).
[CrossRef]

2003 (1)

1997 (1)

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Boullet, J.

Buckley, J.

Buckley, J. R.

Carstens, H.

Chong, A.

Clark, S. W.

Cormier, E.

Demmler, S.

Druon, F.

Furuse, H.

Georges, P.

Gonokami, M. K.

Hädrich, S.

Hanna, D. C.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Hanna, M.

Herrick, N.

Hideur, A.

Ilday, F.

Jansen, F.

Jauregui, C.

Kawashima, T.

Kobayashi, Y.

Komarov, A.

A. Komarov, H. Leblond, and F. Sanchez, Phys. Rev. A 71, 053809 (2005).
[CrossRef]

Kurita, T.

Kuse, N.

Kuznetsova, L.

Leblond, H.

A. Komarov, H. Leblond, and F. Sanchez, Phys. Rev. A 71, 053809 (2005).
[CrossRef]

Lecaplain, C.

Lhermite, J.

Liem, A.

Limpert, J.

Machinet, G.

Miyanaga, N.

Mottay, E.

Nilsson, J.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Nomura, Y.

Ozawa, A.

Papadopoulos, D. N.

Paschotta, R.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Roeser, F.

Rothhardt, J.

Royon, R.

Sanchez, F.

A. Komarov, H. Leblond, and F. Sanchez, Phys. Rev. A 71, 053809 (2005).
[CrossRef]

Stutzki, F.

Torizuka, K.

Traynor, N.

Tropper, A. C.

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Tünnermann, A.

Watanabe, S.

Wise, F.

Wise, F. W.

Yoshida, H.

Yoshitomi, D.

Zaouter, Y.

Zhou, S.

Zhou, X.

IEEE J. Quantum Electron. (1)

R. Paschotta, J. Nilsson, A. C. Tropper, and D. C. Hanna, IEEE J. Quantum Electron. 33, 1049 (1997).
[CrossRef]

Opt. Express (5)

Opt. Lett. (7)

Phys. Rev. A (1)

A. Komarov, H. Leblond, and F. Sanchez, Phys. Rev. A 71, 053809 (2005).
[CrossRef]

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Figures (4)

Fig. 1.
Fig. 1.

Schematic of the mode-locked Yb-doped fiber oscillator. (a) Optical arrangement on the breadboard. LD, laser diode; PBC, polarizing beam combiner; WDM, wavelength division multiplexer; SMF13, single-mode fibers; YDF, ytterbium-doped fiber; CL12, collimation lenses; QWP12, quarter-wave plates; HWP12, half-wave plates; PBS, polarizing beam splitter cube; FI, Faraday isolator; GP1, reflection grating pair; GP2, transmission grating pair; PP, prism pair; M, mirrors. (b) The pump part of the oscillator showing the LDs and optical fibers installed in an aluminum box.

Fig. 2.
Fig. 2.

Measured ASE spectra for (a) forward and (b) backward propagation at different pump power levels. The insets show the spectra of the CW laser emissions.

Fig. 3.
Fig. 3.

Power spectrum observed at a pump power of 405 mW. The inset shows the power spectrum on a semilogarithmic scale.

Fig. 4.
Fig. 4.

Pulse intensity (solid curve) and phase (dashed curve) profiles together with the transform-limited pulse shape (dotted curve). The upper and lower insets show the far-field image and the spectrum analyzer trace of the pulse train, respectively.

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