Utilization of weak cross-Kerr interaction will be a key to the photonic quantum information processing. We propose a novel technique to measure tiny cross-Kerr phase shifts and demonstrate it using a photonic crystal fiber.
© 2007 OSA
N. Matsuda, R. Shimizu, Y. Mitsumori, H. Kosaka, and K. Edamatsu, "Measurement of Cross-Kerr Nonlinearity Induced by a Few Photons in a Photonic Crystal Fiber," in Conference on Coherence and Quantum Optics, OSA Technical Digest (CD) (Optical Society of America, 2007), paper CMI16.
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