Active synchronization of two mode-locked lasers with optical cross correlation

T. Miura, H. Nagaoka, K. Takasago, K. Kobayashi, A. Endo, K. Torizuka, M. Washio, Fumihiko Kannari

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Two mode-locked Ti:sapphire lasers of different wavelengths were precisely synchronized by a simple feedback system employing sum-frequency generation (cross correlation). When the timing error exceeded the pulse duration, the periodic bunch of the sum-frequency pulse was used for rough timing adjustment. Using cross correlation with a stretched pulse, we struck a balance between wide locking range and sensitive timing detection. When the two lasers were well-synchronized, we obtained a continuous cross-correlation pulse train for 3 min. The holding time of the laser synchronization was extended to over one hour by adding a motorized stage to the PZT-mounted cavity mirror. We estimated the rms timing jitter between the two lasers by a scanning cross-correlation measurement. We confirmed that the rms timing jitter of the two lasers during 1.8 s was 28 fs.

Original languageEnglish
Pages (from-to)19-23
Number of pages5
JournalApplied Physics B: Lasers and Optics
Volume75
Issue number1
DOIs
Publication statusPublished - 2002 Jul

Fingerprint

Laser modes
cross correlation
synchronism
Synchronization
time measurement
Lasers
Timing jitter
lasers
pulses
vibration
Sapphire
locking
pulse duration
sapphire
Mirrors
adjusting
mirrors
Scanning
Feedback
Wavelength

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy (miscellaneous)

Cite this

Active synchronization of two mode-locked lasers with optical cross correlation. / Miura, T.; Nagaoka, H.; Takasago, K.; Kobayashi, K.; Endo, A.; Torizuka, K.; Washio, M.; Kannari, Fumihiko.

In: Applied Physics B: Lasers and Optics, Vol. 75, No. 1, 07.2002, p. 19-23.

Research output: Contribution to journalArticle

Miura, T, Nagaoka, H, Takasago, K, Kobayashi, K, Endo, A, Torizuka, K, Washio, M & Kannari, F 2002, 'Active synchronization of two mode-locked lasers with optical cross correlation', Applied Physics B: Lasers and Optics, vol. 75, no. 1, pp. 19-23. https://doi.org/10.1007/s00340-002-0994-5
Miura, T. ; Nagaoka, H. ; Takasago, K. ; Kobayashi, K. ; Endo, A. ; Torizuka, K. ; Washio, M. ; Kannari, Fumihiko. / Active synchronization of two mode-locked lasers with optical cross correlation. In: Applied Physics B: Lasers and Optics. 2002 ; Vol. 75, No. 1. pp. 19-23.
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