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Title: Cross-phase-modulation-induced temporal reflection and waveguiding of optical pulses

Cross-phase modulation (XPM) is commonly viewed as a nonlinear process that chirps a probe pulse and modifies its spectrum when an intense pump pulse overlaps with it. Here we present an alternative view of XPM in which the pump pulse creates a moving refractive-index boundary that splits the probe pulse into two parts with distinct optical spectra through temporal reflection and refraction inside a dispersive nonlinear medium. The probe even undergoes a temporal version of total internal reflection for sufficiently intense pump pulses, a phenomenon that can be exploited for making temporal waveguides. In this paper we investigate the practical conditions under which XPM can be exploited for temporal reflection and waveguiding. The width and shape of pump pulses as well as the nature of medium dispersion at the pump and probe wavelength (normal versus anomalous) play important roles. A super-Gaussian shape of pump pulses is particularly helpful because of its relatively sharp edges. When the pump wavelength lies in the anomalous-dispersion regime, the pump pulse can form a soliton,whose unique properties can be exploited to advantage. We also discuss a potential application of XPM-induced temporal waveguides for compensating timing jitter.
 [1] ;  [2] ;  [1]
  1. Univ. of Rochester, NY (United States). Lab. for Laser Energetics and Inst. of Optics
  2. Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Publication Date:
Report Number(s):
2017-219; 1375; 2017-219, 1375
Journal ID: ISSN 0740-3224; JOBPDE; 2017-219, 2332, 1375; TRN: US1801714
Grant/Contract Number:
NA0001944; ECCS-1505636; ECCS- 1505636
Accepted Manuscript
Journal Name:
Journal of the Optical Society of America. Part B, Optical Physics
Additional Journal Information:
Journal Volume: 35; Journal Issue: 2; Journal ID: ISSN 0740-3224
Optical Society of America (OSA)
Research Org:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics; Laboratory for Laser Energetics, University of Rochester
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA); Univ. of Rochester, NY (United States); New York State Energy Research and Development Authority (NYSERDA); National Science Foundation (NSF); New York State Energy Research and Development Authority
Country of Publication:
United States
36 MATERIALS SCIENCE; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; pulse propagation and temporal solitons; ultrafast nonlinear optics
OSTI Identifier:
Alternate Identifier(s):
OSTI ID: 1418729