Lasers, Fiber Optics, and Communications

Analysis on optical bistability parameters in photonic switching devices

[+] Author Affiliations
Hossein Sarafraz, Mohammad R. Sayeh

Southern Illinois University Carbondale, Department of Electrical and Computer Engineering, 1230 Lincoln Drive Mail Code 6603, Carbondale, Illinois 62901, United States

Opt. Eng. 55(6), 066119 (Jun 24, 2016). doi:10.1117/1.OE.55.6.066119
History: Received February 20, 2016; Accepted June 2, 2016
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Abstract.  An investigation has been done on the parameters of a hysteretic bistable optical Schmitt trigger device. From a design point of view, it is important to know the regions where this bistability occurs and is fully functional with respect to its subsystem parameters. Otherwise experimentally reaching such behavior will be very time-consuming and frustrating, especially with multiple devices employed in a single photonic circuit. A photonic Schmitt trigger consisting of two feedbacked inverting amplifiers, each characterized by m (slope), A (y-intercept), and B (constant base) parameters is considered. This system is investigated dynamically with a varying input to find its stable and unstable states both mathematically and with simulation. In addition to a complete mathematical analysis of the system, we also describe how m, A, and B can be properly chosen in order to satisfy certain system conditions that result in bistability. More restrictions are also imposed to these absolute conditions by the system conditions as will be discussed. Finally, all results are verified in a more realistic photonic simulation.

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© 2016 Society of Photo-Optical Instrumentation Engineers

Citation

Hossein Sarafraz and Mohammad R. Sayeh
"Analysis on optical bistability parameters in photonic switching devices", Opt. Eng. 55(6), 066119 (Jun 24, 2016). ; http://dx.doi.org/10.1117/1.OE.55.6.066119


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