Abstract

We show for the first time that signal processing schemes based on noncoherent signal addition will require signal transfer characteristics exhibiting high degrees of curvature. We quantify this by proposing a set of single-input, dual-output, power-conserving transfer functions and generating designs based on these characteristics. We then analyze the sensitivity of such a design scheme to nonidealities in the signal level and device behavior,and show that a sampling operation is only possible for transfer characteristics with residual"low"output of less than about 10% and low intensity reflectivity higher than 98%. For single device signal loss of up to 0.1 dB,we show that the best possible crosstalk-to-noise ratio in a packet forwarder (27 dB), is limited by the availibility of the sampling operation.

[IEEE ]

Building Optical Packet Networks Without Buffering, Signaling or Header Processing

Thomas Bonald, Davide Cuda, Raluca-Maria Indre, and Ludovic Noirie
J. Opt. Commun. Netw. 5(4) 294-304 (2013)

Signal-to-noise-ratio limit to the depth-of-field extension for imaging systems with an arbitrary pupil function

Saeed Bagheri, Paulo E. X. Silveira, and George Barbastathis
J. Opt. Soc. Am. A 26(4) 895-908 (2009)

Asynchronous, all-optical signal processing based on the self-frequency shift of a gigahertz Raman soliton

Masao Kato, Kazuo Fujiura, and Takashi Kurihara
Appl. Opt. 44(8) 1442-1447 (2005)

Functional all-optical logic gates for true time-domain signal processing in nonlinear photonic crystal waveguides

Vakhtang Jandieri, Ramaz Khomeriki, Tornike Onoprishvili, Douglas H. Werner, Jamal Berakdar, and Daniel Erni
Opt. Express 28(12) 18317-18331 (2020)

All-optical 100-gbit/s word packet time-division-multiplexed access node in a looped-back configuration: enabling technologies for sequential add–drop functionality

Janet W. Lou, Yi Liang, Ozdal Boyraz, and Mohammed N. Islam
Appl. Opt. 39(29) 5280-5294 (2000)