NDLI: All-optical flip-flop contrast enhancement based on bistable polarisation rotation within Fabry

Content Provider	IET Digital Library
Author	Ippolito, C. E. Paranjpe, T. Permeneva, D. Maywar, D. N.
Abstract	Switching-contrast enhancement of over 28 dB for all-optical flip-flop (AOFF) operation of a Fabry–Perót semiconductor optical amplifier (SOA) is experimentally demonstrated. Although the two stable flip-flop states of such a device are typically distinguished by their optical power, it is demonstrated that each stable state can also exhibit a unique state of polarisation (SOP). This bistable polarisation rotation (BPR) is leveraged to achieve extreme contrast enhancement by aligning the AOFF reset-state SOP to the blocking axis of a linear polariser, producing a contrast of 36.6 dB. This contrast-enhancement technique is applicable to other AOFFs based on resonant-type SOAs (RT-SOAs) and Kerr-nonlinear media, substantially improving their applicability to advanced photonic-switching applications.
Starting Page	1620
Ending Page	1622
Page Count	3
ISSN	00135194
Volume Number	50
e-ISSN	1350911X
Issue Number	Issue 22, Oct (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/50/22
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2014.3002
Journal	Electronics Letters
Publisher Date	2014-10-16
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	All-optical Flip-flop Contrast Enhancement Beam Trapping, Self Focusing, Thermal Blooming, And Related Effects Bistable Polarisation Rotation Design of Specific Laser System Fabry-Perot Resonator Fabry–Perot Semiconductor Optical Amplifier Fabry–Perot SOA Flip Flops Flip-flop State Kerr-nonlinear Media Lasing Action in SemiConductor Linear Polariser Multistability And Switching Optical Bistability Optical Kerr Effect Optical Polarisers Optical Power Optical Self-focusing And Related Effect Optical Switches Photonic-switching Application Polarisation State Polarizers Resonant-type SOA Semiconductor Laser Semiconductor Optical Amplifiers Spatial Filter Switching-contrast Enhancement Zone Plate
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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