Title :
Measurements of Optical Non-linearity Induced Phase-Shifts of Signal Pulse with Repetitive Control Pulses in Photonic Crystal/Quantum Dot Waveguide
Author :
Kitagawa, Yoshinori ; Ozaki, Nobuhiko ; Takata, Yoshiaki ; Ikeda, Naoki ; Watanabe, Yoshinori ; Mizutani, Akio ; Sugimoto, Yoshimasa ; Asakawa, Kiyoshi
Author_Institution :
Univ. of Tsukuba, Tsukuba
Abstract :
The phase shift of signal pulse due to carrier excitation in quantum dots (QDs) induced by repetition control pulses is measured by two-color pump/probe measurements to investigate the effects of repetition frequency on the switch operation.The result suggests the possibility of beyond 40 GHz repetitive switch operations in photonic-crystal-based Mach-Zehnder (PC-SMZ) by using QDs with faster decay time constant, e. g., 100 ps.
Keywords :
high-speed optical techniques; optical communication equipment; optical switches; optical waveguides; photonic crystals; quantum dots; carrier excitation; decay time constant; optical nonlinearity induced phase-shifts; photonic crystal-quantum dot waveguide; repetition frequency; repetitive control pulses; signal pulse; switch operation; two-color pump-probe measurements; Frequency measurement; Optical control; Optical pulses; Optical waveguides; Phase measurement; Photonic crystals; Pulse measurements; Quantum dots; Switches; Time measurement;
Conference_Titel :
Lasers and Electro-Optics Society, 2007. LEOS 2007. The 20th Annual Meeting of the IEEE
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-0925-9
Electronic_ISBN :
1092-8081
DOI :
10.1109/LEOS.2007.4382582
