[1] W. Li, G. Khoe, H. V. D. Boom, G. Yabre, H. de Waardt, Y. Koike, S. Yamazaki, K. Nakamura, and Y. Kawaharada, Microwave and Optical Technol. Lett. 20, 163 (1999).
[2] G. Giaretta, W. White, M. Wegmuller, and Onishi, IEEE Photon. Technol. Lett. 12, 347 (2000).
[3] W. Feller, An Introduction to Probability Theory and Its Applications (Vol. 1, 3rd ed.) (John Wiley & Sons, New York, 1968).