Abstract

We investigate the performance of an Er:fiber laser based femtosecond frequency comb for precision metrological applications. Instead of an active stabilization of the comb, the fluctuations of the carrier-envelope offset phase, the repetition phase, and the phase of the beat from a comb line with an optical reference are synchronously detected. We show that these fluctuations can be effectively eliminated by exploiting their known correlation. In our experimental scheme, we utilize two identically constructed frequency combs for the measurement of the fluctuations, rejecting the influence of a shared optical reference. From measuring a white frequency noise level, we demonstrate that a fractional frequency instability better than 1.4 x 10-14 for 1 s averaging time can be achieved in frequency metrology applications using the Er:fiber based frequency comb.

© 2005 Optical Society of America

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References

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Appl. Phys. B (4)

H. R. Telle, B. Lipphardt, and J. Stenger, "Kerr-lens, mode-locked lasers as transfer oscillators for optical frequency measurements," Appl. Phys. B 74, 1-6 (2002).
[CrossRef]

H. R. Telle, G. Steinmeyer, A. E. Dunlop, J. Stenger, D. H. Sutter, and U. Keller, "Carrier-envelope offset phase control: a novel concept for absolute optical frequency measurement and ultrashort pulse generation," Appl. Phys. B 69, 327-332 (1999).
[CrossRef]

R. Paschotta, B. Rudin, A. Schlatter, G.J. Spühler, L. Krainer, S.C. Zeller, N. Haverkamp, H.R. Telle, and U. Keller, "Relative timing jitter measurements with an indirect phase comparison method," Appl. Phys. B 80, 185 - 192 (2005).
[CrossRef]

N. Haverkamp, H. Hundertmark, C. Fallnich, and H. R. Telle, "Frequency stabilization of mode-locked Erbium fiber lasers using pump power control," Appl. Phys. B 78, 321-324 (2004).
[CrossRef]

CLEO/IQEC 2004 (1)

B.R. Washburn, S.A. Diddams, N.R. Newbury, J.W. Nicholson, M.F. Yan, and C.G. Jorgensen, "A phase locked, fiber laser-based frequency comb: limit on optical linewidth," CLEO/IQEC and PhAST Technical Digest on CD-ROM (The Optical Society of America, Washington, DC, 2004), CMO3.

IEEE Trans. Ultrason. Ferroel. Freq. Con (1)

E.N. Ivanov, S.A. Diddams, and L. Hollberg, "Experimental Study of Noise Properties of a Ti:Sapphire Femtosecond Laser," IEEE Trans. Ultrason. Ferroel. Freq. Contr. 50, 355-360 (2003).

Opt. Express (1)

Opt. Lett. (6)

Phys. Rev. Lett. (1)

J. Stenger, H. Schnatz, C. Tamm, and H. R. Telle, "Ultraprecise measurement of optical frequency ratios," Phys. Rev. Lett. 88, 073601 (2002).
[CrossRef]

Rev. Mod. Phys. (1)

S.T. Cundiff and J. Ye, "Femtosecond optical frequency combs," Rev. Mod. Phys. 75, 325-342 (2003).
[CrossRef]

Science (1)

D. J. Jones, S. A. Diddams, J. K. Ranka, A. Stentz, R. S. Windeler, J. L. Hall, and S. T. Cundiff, "Carrier-envelope phase control of femtosecond mode-locked lasers and direct optical frequency synthesis," Science 288, 635-639 (2000).
[CrossRef]

Other (1)

NIST technical note 1337: Characterization of clocks and oscillators, D.B. Sullivan, D.W. Allan, D.A. Howe, and F.L. Walls, eds. (U.S. Government printing office, Washington, 1990), table I, p. TN-341.

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