Scientific Results

Improved Intrapulse Raman Scattering Control via Asymmetric Airy Pulses

Year: 2015

Authors: Hu Y., Tehranchi A., Wabnitz S., Kashyap R., Chen Z., Morandotti R.

Autors Affiliation: The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics,
Nankai University, Tianjin 300457, China; INRS-EMT, 1650 Boulevard Lionel-Boulet, Varennes, Québec J3X 1S2, Canada;
Dipartimento di Ingegneria dell’Informazione, Università di Brescia, Via Branze 38, 25123 Brescia, Italy;
Advanced Photonics Concepts Laboratory, Department of Electrical Engineering and Department of Engineering Physics,
Ecole Polytechnique, University of Montreal, C.P. 6079, Succursale Centre-ville, Montreal, Québec H3C 3A7, Canada;
Department of Physics and Astronomy, San Francisco State University, San Francisco, California 94132, USA

Abstract: We experimentally demonstrate the possibility of tuning the frequency of a laser pulse via the use of an Airy pulse-seeded soliton self-frequency shift. The intrinsically asymmetric nature of Airy pulses, typically featured by either leading or trailing oscillatory tails (relatively to the main lobe), is revealed through the nonlinear generation of both a primary and a secondary Raman soliton self-frequency shift, a phenomenon which is driven by the soliton fission processes. The resulting frequency shift can be carefully controlled by using time-reversed Airy pulses or, alternatively, by applying an offset to the cubic phase modulation used to generate the pulses. When compared with the use of conventional chirped Gaussian pulses, our technique brings about unique advantages in terms of both efficient frequency tuning and feasibility, along with the generation and control of multicolor Raman solitons with enhanced tunability. Our theoretical analysis agrees well with our experimental observations.


Volume: 114 (7)      Pages from: 073901  to: 073901

More Information: This work is supported by the NSERC (Natural Sciences and Engineering Research Council of Canada), via the Discovery and Strategic grant programs, and by the U.S. National Science Foundation.
KeyWords: Frequency shift keying; Nonlinear optics; Phase modulation; Solitons, Asymmetric natures; Chirped Gaussian pulse; Frequency shift; Frequency-tuning; Intrapulse Raman scattering; Nonlinear generation; Soliton fission; Soliton self-frequency shift, Pulse generators
DOI: 10.1103/PhysRevLett.114.073901

Citations: 35
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