Abstract
Recently several fiber-optic signal processors have been introduced which employ recirculating single-mode loops. These include the fiber-optic systolic matrix-vector multiplier1 and the recirculating delay line filter.2 Proper operation of these processors requires addition of optical intensities rather than amplitudes, and, therefore, short coherence sources must be used with a coherence time τc much shorter than the smallest loop delay τ. We demonstrate that the dynamic range of such processors is severely limited by intensity noise whose origin is the laser phase fluctuations. We also show that the power spectrum of the output noise is characterized by minima at zero frequency as well as at other integer multiples of the inverse of the loop delay.
© 1983 Optical Society of America
PDF ArticleMore Like This
Yasuhiro Tsutsumi, Yuto Omori, Kazuki Kikkawa, Masaharu Ohashi, Ikuo Yamashita, and Joji Maeda
ATh3A.102 Asia Communications and Photonics Conference (ACP) 2014
A. Zadok and A. Eyal
JThB31 National Fiber Optic Engineers Conference (NFOEC) 2006
Daniel W. Bechtle and Stefan Siegel
TuJ4 Optical Fiber Communication Conference (OFC) 1983