期刊
OPTICS EXPRESS
卷 25, 期 11, 页码 12952-12966出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.25.012952
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资金
- National Science Foundation (NSF) [1521466]
- QIS - Quantum Information Science Program
- Direct For Mathematical & Physical Scien
- Division Of Physics [1521466] Funding Source: National Science Foundation
Quantum frequency conversion (FC) in nonlinear optical media is a powerful tool for temporal-mode selective manipulation of light. Recent attempts at achieving high mode selectivities and/or fidelities have had to resort to multi-dimensional optimization schemes to determine the system's natural Schmidt modes. Certain combinations of relative-group velocities between the relevant frequency bands, medium length, and temporal pulse widths have been known to achieve good selectivities (exceeding 80%) for temporal modes that are nearly identical to pump pulse shapes, even for high conversion efficiencies. Working in this parameter regime using an off-the-shelf, second-harmonic generation, MgO:PPLN waveguide, and with pulses on the order of 500 fs at wavelengths around 800 nm, we verify experimentally that model-predicted Schmidt modes provide the high temporal-mode selectivity expected. The good agreement between experiment and theory paves the way to the implementation of a proposed two-stage FC scheme that is predicted by the present theory to reach near-perfect (100%) selectivity. (C) 2017 Optical Society of America
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