Title :
Integrated optical architectures for tapped delay lines
Author :
Anemogiannis, Emmanuel ; Kenan, Richard P.
Author_Institution :
Sch. of Electr. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
fDate :
8/1/1990 12:00:00 AM
Abstract :
An integrated optics (IO) device that is an implementation of an IO tapped delay line is discussed. It is capable of performing discrete convolution of an optical pulse sequence with a preset digital function. Several architectures for the device are presented. A systematic realization of the preset function samples that permits efficient utilization of all the input light power and maximization of the output signal-to-noise ratio (SNR) for the device is discussed. A detailed analysis of what determines the number of preset samples that can be realized and how to realize them on a LiNbO3 crystal is given. Two digital filter design examples are presented, and the quantization error effects on their performance are examined. The same architectures are shown to implement digital-to-analog (D/A) conversion and systolic multiplication of a Toeplitz matrix with a vector having the form of optical pulses
Keywords :
delay lines; integrated optics; lithium compounds; optical communication equipment; LiNbO3 crystal; Toeplitz matrix; digital filter design; digital to analogue conversion; discrete convolution; input light power; integrated optical architectures; integrated optics; optical pulse sequence; optical pulse vector; output signal-to-noise ratio; preset digital function; quantization error; systolic multiplication; tapped delay lines; Computer architecture; Delay lines; Electrooptical waveguides; Finite impulse response filter; Gratings; High speed optical techniques; Integrated optics; Optical filters; Optical pulses; Optical signal processing;
Journal_Title :
Lightwave Technology, Journal of
