Non-reciprocal geometric phase in nonlinear frequency conversion.

Publisher:
Optica
Publication Type:
Journal Article
Citation:
Optics Letters, 2017, 42, (10), pp. 1990-1993
Issue Date:
2017-05-15
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We describe analytically and numerically the geometric phase arising from nonlinear frequency conversion and show that such a phase can be made non-reciprocal by momentum-dependent photonic transition. Such non-reciprocity is immune to the shortcomings imposed by dynamic reciprocity in Kerr and Kerr-like devices. We propose a simple and practical implementation, requiring only a single waveguide and one pump, while the geometric phase is controllable by the pump and promises robustness against fabrication errors.
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