Title :
Performance Evaluation of Resolution-Enhanced ADC Using Optical Multiperiod Transfer Functions of NOLMs
Author :
Miyoshi, Yuji ; Namiki, Shu ; Kitayama, Ken-ichi
Author_Institution :
Dept. of Electr. & Inf. Syst., Osaka Prefecture Univ., Sakai, Japan
Abstract :
We propose a resolution enhancement scheme using optical I/O multiperiod transfer functions of NOLMs for ultrafast low-resolution electrical A/D converters (ADCs). This scheme can provide an 8-bit ADC with the effective-number-of-bits of 7.86 bit by combining 8-period optical transfer functions and three 5-bit electrical ADCs. We investigate the performance of ADC about effective resolution, the nonlinear error and missing code due to the resolution of low-resolution ADCs and the number of output bits of the resolution-enhanced ADC.
Keywords :
analogue-digital conversion; mirrors; nonlinear optics; optical communication equipment; optical transfer function; NOLM; missing code; nonlinear error; nonlinear optical loop mirrors; optical multiperiod transfer functions; performance evaluation; resolution-enhanced ADC; word length 8 bit; Adaptive optics; Nonlinear optics; Optical attenuators; Optical fibers; Optical pulses; Transfer functions; Ultrafast optics; A/D conversion; nonlinear optical loop mirrors (NOLM); optical signal processing; photonic quantization;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2011.2132118
