An optical threshold function based on polarization rotation in a single semiconductor optical amplifier

Autor: Y Yong Liu, F.W. Leuschner, R. Geldenhuys, GD Giok-Djan Khoe, J. J. Vegas Olmos, H.J.S. Dorren
Přispěvatelé: Electro-Optical Communication
Jazyk: angličtina
Rok vydání: 2007
Předmět:
Zdroj: Optics Express, 15(12), 7275-7280. Optical Society of America (OSA)
ISSN: 1094-4087
DOI: 10.1364/OE.15.007275
Popis: Optical threshold functions are a basic building block for alloptical signal processing, and this paper investigates a threshold function design reliant on a single active element. An optical threshold function based on nonlinear polarization rotation in a single semiconductor optical amplifier is proposed. It functions due to an induced modification of the birefringence of a semiconductor optical amplifier caused by an externally injected optical control signal. It is shown that switching from both the TE to the TM mode and vice versa is possible. The measured results are supported by simulation results based on the SOA rate equations. ©2007 Optical Society of America
Databáze: OpenAIRE