Long-term femtosecond timing link stabilization using a single-crystal balanced cross correlator.
We demonstrate a self-aligned balanced cross correlator based on a single type-II phase-matched periodically poled KTiOPO4 crystal. The birefringence of the crystal generates a walk-off between the two orthogonally polarized pulses. This enables the balancing of the cross correlator with input pulses at the same center wavelength. As a first application of this single-crystal balanced cross correlator, we stabilized a 310 m long optical fiber link for timing distribution with long-term stable 10 fs precision.
Kim
J
J
Department of Electrical Engineering and Computer Science and Research Laboratory of Electronics, Massachusetts Institute of Technology, MA 02139, USA. jungwon@mit.edu
Chen
J
J
Zhang
Z
Z
Wong
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Kärtner
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Loehl
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Schlarb
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