Abstract

Pulses from a tunable near-infrared femtosecond optical parametric oscillator and its Ti:sapphire pump laser were phase-locked by matching their carrier-envelope phase-slip frequencies to one quarter of their common pulse repetition frequency. Interferometric second-order cross-correlation and spectral interferometry traces demonstrated their mutual coherence for periods of at least 20 ms, compared with individual coherence times of 0.1 ms estimated from their phase-noise power spectra. This result is a prerequisite for versatile coherent pulse synthesis. Implications for the synthesis of arbitrary waveforms from multi-colour pulses are discussed.

© 2008 Optical Society of America

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References

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    [CrossRef]
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    [CrossRef]
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    [CrossRef] [PubMed]
  6. P. Loza-Alvarez, C. T. A. Brown, D. T. Reid, W. Sibbett, and M. Missey, "High-repetition-rate ultrashort-pulse optical parametric oscillator continuously tunable from 2.8 to 6.8 µm," Opt. Lett. 24, 1523-1525 (1999).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]

2007

2006

2003

F. W. Helbing, G. Steinmeyer, and U. Keller, "Carrier-envelope control of femtosecond lasers with attosecond timing jitter," Laser Phys. 13, 644-651 (2003).

Y. Kobayashi, H. Takada, M. Kakehata, and K. Torizuka, "Phase-coherent Multicolor Femtosecond Pulse Generation," Appl. Phys. Lett. 83, 839 (2003).
[CrossRef]

2002

2001

A. Poppe, R. Holzwarth, A. Apolonski, G. Tempea, Ch. Spielmann, T. W. Hänsch, and F. Krausz, "Few-cycle optical waveform synthesis," Appl. Phys. B 72, 373-376 (2001).
[CrossRef]

R. K. Shelton, L.-S. Ma, H. C. Kapteyn, M. M. Murnane, J. L. Hall, and J. Ye, "Phase-coherent optical pulse synthesis from separate femtosecond lasers," Science 293, 1286-1289 (2001).
[CrossRef] [PubMed]

2000

A. M. Weiner, "Review Article: Femtosecond pulse shaping using spatial light modulators," Rev. Sci. Instrum. 71, 1929-1960 (2000).
[CrossRef]

1999

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]

P. Loza-Alvarez, C. T. A. Brown, D. T. Reid, W. Sibbett, and M. Missey, "High-repetition-rate ultrashort-pulse optical parametric oscillator continuously tunable from 2.8 to 6.8 µm," Opt. Lett. 24, 1523-1525 (1999).
[CrossRef]

1997

1995

M. Prevedelli, T. Freegarde, and T. W. Hänsch, "Phase locking of grating-tuned diode lasers," Appl. Phys. B 60, S241-248 (1995).

1990

T. W. Hänsch, "A proposed sub-femtosecond pulse synthesizer using separate phase-locked laser oscillators," Opt. Commun. 80, 71-75 (1990).
[CrossRef]

Appl. Phys. B

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]

M. Prevedelli, T. Freegarde, and T. W. Hänsch, "Phase locking of grating-tuned diode lasers," Appl. Phys. B 60, S241-248 (1995).

A. Poppe, R. Holzwarth, A. Apolonski, G. Tempea, Ch. Spielmann, T. W. Hänsch, and F. Krausz, "Few-cycle optical waveform synthesis," Appl. Phys. B 72, 373-376 (2001).
[CrossRef]

Appl. Phys. Lett.

Y. Kobayashi, H. Takada, M. Kakehata, and K. Torizuka, "Phase-coherent Multicolor Femtosecond Pulse Generation," Appl. Phys. Lett. 83, 839 (2003).
[CrossRef]

Laser Phys.

F. W. Helbing, G. Steinmeyer, and U. Keller, "Carrier-envelope control of femtosecond lasers with attosecond timing jitter," Laser Phys. 13, 644-651 (2003).

Opt. Commun.

T. W. Hänsch, "A proposed sub-femtosecond pulse synthesizer using separate phase-locked laser oscillators," Opt. Commun. 80, 71-75 (1990).
[CrossRef]

Opt. Express

Opt. Lett.

Rev. Sci. Instrum.

A. M. Weiner, "Review Article: Femtosecond pulse shaping using spatial light modulators," Rev. Sci. Instrum. 71, 1929-1960 (2000).
[CrossRef]

Science

R. K. Shelton, L.-S. Ma, H. C. Kapteyn, M. M. Murnane, J. L. Hall, and J. Ye, "Phase-coherent optical pulse synthesis from separate femtosecond lasers," Science 293, 1286-1289 (2001).
[CrossRef] [PubMed]

Other

J.-C. Diels and W. Rudolph, Ultrashort Laser Pulse Phenomena: Fundamentals, Techniques and Applications on a Femtsecond Time Scale (Academic Press, San Diego, CA, 1996).

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Figures (5)

Fig. 1.
Fig. 1.

Optical layout. BBO, beta barium borate crystal. CLx,y cylindrical lenses. FM, flipper mirror. IF, interference filter. P, polariser. PBS1-3, polarising beam splitters. PCF, photonic crystal fibre. PD, photo-diode. PZT1,2, piezo-electric transducer.

Fig. 2.
Fig. 2.

Locking scheme for stabilising the CEPS frequencies of the pump and signal pulses. Red and green solid lines: optical. Black dashed lines: electronic.

Fig. 3.
Fig. 3.

(a). Single-shot spectral interference between SH signal and pump pulses with CEPS frequencies both locked to 50 MHz and unlocked. The sweep time was 4 ms. (b) Pump and SH signal spectra, recorded independently of the measurement in (a).

Fig. 4.
Fig. 4.

(a). Second-order cross-correlation between the pump and SH signal pulses, recorded with their CEPS frequencies locked to 50 MHz (orange lines) and unlocked (black lines). (b) Expanded detail of fringes around zero delay.

Fig. 5.
Fig. 5.

Phase noise power spectral density (PSD) of the pump (a) and OPO signal pulses (b) when the CEPS frequencies of both pulse sequences were locked to 50 MHz.

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