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Proceedings Paper

Ultrafast optical signal processing with hybrid-integrated symmetric Mach-Zehnder all-optical switches
Author(s): Shigeru Nakamura; Takemasa Tamanuki; Morio Takahashi; Takanori Shimizu; Satoshi Ae; Kazuo Mori; Akio Furukawa; Tatsuya Sasaki; Kazuhito Tajima
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Paper Abstract

We report on various types of ultrafast all-optical signal processing with hybrid-integrated Symmetric-Mach-Zehnder (HI-SMZ) all-optical switches driven by 40-Gb/s or 40-GHz optical pulses. To operate HI-SMZ switches with such high-repetition excitation, we use longer semiconductor optical amplifiers (SOAs) as nonlinear phase shifters than we previously used. We demonstrate that extending the SOA length is useful for increasing carrier injection and thus enhancing the nonlinear phase shift in SOAs. We show 3R regeneration and wavelength conversion at 42 Gb/s using HI-SMZ switches with longer SOAs. We also show error-free optical demultiplexing of 168- or 336-Gb/s signal pulses with HI-SMZ switches driven by 42-GHz control pulses.

Paper Details

Date Published: 14 August 2003
PDF: 10 pages
Proc. SPIE 5246, Active and Passive Optical Components for WDM Communications III, (14 August 2003); doi: 10.1117/12.511797
Show Author Affiliations
Shigeru Nakamura, NEC Corp. (Japan)
Takemasa Tamanuki, NEC Corp. (Japan)
Morio Takahashi, NEC Corp. (Japan)
Takanori Shimizu, NEC Corp. (Japan)
Satoshi Ae, NEC Corp. (Japan)
Kazuo Mori, NEC Corp. (Japan)
Akio Furukawa, NEC Corp. (Japan)
Tatsuya Sasaki, NEC Corp. (Japan)
Kazuhito Tajima, NEC Corp. (Japan)


Published in SPIE Proceedings Vol. 5246:
Active and Passive Optical Components for WDM Communications III
Achyut K. Dutta; Abdul Ahad S. Awwal; Niloy K. Dutta; Kazuo Fujiura, Editor(s)

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