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All-optical majority gate based on an injection-locked laser

Lerber, Tuomo von ; Lassas, Matti ; Lyubopytov, Vladimir S. ; Ylinen, Lauri ; Chipouline, Arkadi ; Hofmann, Klaus ; Küppers, Franko (2022):
All-optical majority gate based on an injection-locked laser. (Publisher's Version)
In: Scientific Reports, 9, Springer Nature, e-ISSN 2045-2322,
DOI: 10.26083/tuprints-00013232,
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Item Type: Article
Origin: Secondary publication
Status: Publisher's Version
Title: All-optical majority gate based on an injection-locked laser
Language: English
Abstract:

An all-optical computer has remained an elusive concept. To construct a practical computing primitive equivalent to an electronic Boolean logic, one should utilize nonlinearity that overcomes weaknesses that plague many optical processing schemes. An advantageous nonlinearity provides a complete set of logic operations and allows cascaded operations without changes in wavelength or in signal encoding format. Here we demonstrate an all-optical majority gate based on a vertical-cavity surface-emitting laser (VCSEL). Using emulated signal coupling, the arrangement provides Bit Error Ratio (BER) of 10⁻⁶ at the rate of 1 GHz without changes in the wavelength or in the signal encoding format. Cascaded operation of the injection-locked laser majority gate is simulated on a full adder and a 3-bit ripple-carry adder circuits. Finally, utilizing the spin-flip model semiconductor laser rate equations, we prove that injection-locked lasers may perform normalization operations in the steady-state with an arbitrary linear state of polarization.

Journal or Publication Title: Scientific Reports
Volume of the journal: 9
Publisher: Springer Nature
Collation: 7 Seiten
Classification DDC: 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
Divisions: 18 Department of Electrical Engineering and Information Technology > Institute for Microwave Engineering and Photonics (IMP)
Date Deposited: 08 Mar 2022 12:20
Last Modified: 10 Mar 2022 09:46
DOI: 10.26083/tuprints-00013232
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-132326
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/13232
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