Abstract
Frequency-to-time mapping (FTM) is a technique used to mirror the spectral shape of an optical waveform in the time domain. The regular approach, based on the far-field condition, requires large amounts of dispersion for successful mapping. However, when the far-field condition is insurmountable for achieving a desired temporal profile, another technique, termed near-field FTM, can be employed to assist with the mapping. For the first time, we demonstrate a shaper-assisted near-field FTM using entangled photon pairs. By pre-modifying the two-photon spectral amplitude and phase before propagating the photon pairs through dispersion, we can achieve arbitrary temporal correlations in the near-field region.
Original language | English |
---|---|
Pages (from-to) | 743-746 |
Number of pages | 4 |
Journal | Optics Letters |
Volume | 43 |
Issue number | 4 |
DOIs | |
State | Published - Feb 2018 |
Externally published | Yes |
Funding
National Science Foundation (NSF) (ECCS-1407620). We thank C. Langrock and M. M. Fejer for fabrication of the PPLN waveguides and acknowledge discussions with J. M. Lukens and P. Imany.