Two-photon correlation of broadband-amplified spontaneous four-wave mixing

Rafi Z. Vered, Michael Rosenbluh, Avi Pe'Er

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We measure the time-energy correlation of broadband, spontaneously seeded four-wave mixing (FWM), and demonstrate time-frequency coupling effects; specifically, we observe a power-dependent splitting of the correlation in both energy and time. By pumping a photonic crystal fiber with narrowband picosecond pulses we generate FWM in a unique regime, where broadband (>100 nm) sidebands are generated that are incoherent, yet time-energy correlated. Although the observed time-energy correlation in FWM is conceptually similar to parametric down-conversion, its unique dependence on pump intensity due to self- and cross-phase-modulation effects yields spectral and temporal structure in the correlations. While these effects are minute compared to the time duration and bandwidth of the FWM sidebands, they are well observed using sum-frequency generation as a precise, ultrafast, wide-bandwidth correlation detector.

Original languageEnglish
Article number043837
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number4
StatePublished - 26 Oct 2012


Dive into the research topics of 'Two-photon correlation of broadband-amplified spontaneous four-wave mixing'. Together they form a unique fingerprint.

Cite this