PLC-based optical add/drop switch with automatic level control

Autor:	K. Hattori, M. Oguma, M. Fukui, Kimio Oguchi, Masahiko Jinno
Rok vydání:	1999
Předmět:	Engineering business.industry Circuit design Wavelength-division multiplexing Electronic engineering Optical communication Bit error rate Drop (telecommunication) Crossover switch business Optical switch Multiplexer Atomic and Molecular Physics and Optics
Zdroj:	Journal of Lightwave Technology. 17:2562-2571
ISSN:	0733-8724
Popis:	A novel switch configuration for an optical add/drop multiplexer is proposed. By utilizing a certain Mach-Zehnder interferometer both as a component of a double-gate switch and as a level equalizer, we reduced the number of Mach-Zehnder interferometers from five in a conventional switch configuration to three. The add/drop switch simultaneously provides high-isolation switching and polarization-independent automatic level control. The use of planar lightwave circuit (PLC) technology enables this switch to be fabricated with three thermooptic switches (TOSWs) and a monitor tap. High isolation of more than 44 dB and automatic level control accuracy of better than 0.3 dB are achieved. Bit error rate (BER) measurements confirmed switch's usability in the optical add/drop multiplexer.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bb61af1c9e0380293a7e67d84ffeca05 https://doi.org/10.1109/50.809678 Zobrazit plný text záznamu