Patent ID: 6538974
Filing Date: 2003-03-25
Classification: G02B,G11B,H04B

Abstract:
A system for propagating a first light signal between a laser source and a storage location, comprising:an optical element disposed between the laser source and the storage location and adapted to transmit the first light signal generated by the laser source; and a controller connected to the laser source for pulsing the laser source on and off with a duty cycle of about fifty percent or less and with a modulation frequency determined by the equation F=c(2i+1)/4Ln, wherein c is a speed of light in a vacuum, L is a length of the optical element, n is a refractive index of the optical element, and i is an integer having a value of at least zero, in order to separate in time the first light signal and at least one spurious reflection, whereby interference between the first light signal and the at least one spurious reflection is reduced.