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Distortion in optical pulse equalization through phase modulation and dispersive transmission
Authors:Pablo A. Costanzo-Caso  Christian Cuadrado-Laborde  Ricardo Duchowicz  Enrique E. Sicre
Affiliation:1. Centro de Investigaciones Ópticas (CIOp), CONICET – CIC, Camino Centenario y 506, (1900) La Plata, Argentina. P.O. Box 124, (1900) La Plata, Argentina;2. Facultad de Ingeniería, Universidad Nacional de La Plata, La Plata, Argentina;3. Facultad de Ciencias Exactas e Ingeniería, Universidad Argentina de la Empresa (UADE), Lima 717, (C1073AAO) Buenos Aires, Argentina;1. School of Mechanical Engineering, Xi''an Jiaotong University, Xi''an, Sha''anxi Province 710049, China;2. State Key Laboratory for Manufacturing System Engineering, Xi''an Jiaotong University, Xi''an, Sha''anxi Province 710049, China;1. State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China;2. Shandong Provincial Key Laboratory of Optical Communication Science and Technology, Liaocheng University, Liaocheng 252000, China;1. Fujian Provincial Key Laboratory of Light Propagation and Transformation, College of Information Science & Engineering, Huaqiao University, Xiamen 361021, China;2. State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;3. College of Electromechanical Engineering, Sanming University, Fujian, Sanming 365004, China;1. Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India;2. School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore
Abstract:By combining phase modulation and dispersive transmission we propose an adjustable optical device to compress a time-varying input signal for producing ultrashort light pulses of high optical power. The relationship between the required properties of the input signal and the device parameters to get well-conformed sharp pulses with large energy concentration was established. High-order aberrations effects of the electro-optical modulator acting as the time lens of the employed setup are also considered. We found a mathematical analogy between the output signal of the analyzed device and the signal which would be obtained by using an equivalent first-order dispersive line. Some numerical simulations are shown which illustrate the feasibility of the method.
Keywords:
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