SILVANO DONATI is Full Professor and leader of the Electro-Optics Group at the University of Pavia, Italy. His research interests have included laser telemeters, interferometry; fiber gyros and current sensors; speckle pattern, and noise in CCD coupled oscillators. A Fellow Member of IEEE and OSA, and Meritorious Member of AEI, he has authored or coauthored 250 papers, guest edited several leading journals, and earned 10 patents. He is author of Photodetectors (Prentice Hall).