A novel scheme for generating optical dark return-to-zero pulses and its application in a label switching optical network

Jianjun Yu, Lei Xu, Yong Kee Yeo, Philip Nan Ji, Ting Wang, Gee Kung Chang

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

We experimentally demonstrate a novel and simple method to generate a dark return-to-zero (RZ) pulse with tunable pulsewidth and extinction ratio by using a dual-arm LiNbO3 intensity modulator. Our experimental results show that this dark RZ pulse signal can be used in a 10-Gb/s optical packet switching system as an optical label. In addition, we demonstrate that this dark RZ label can be easily erased using the gain saturation effect in a semiconductor optical amplifier.

Original languageEnglish (US)
Pages (from-to)1524-1526
Number of pages3
JournalIEEE Photonics Technology Letters
Volume18
Issue number14
DOIs
StatePublished - Jul 15 2006
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Keywords

  • Dark-pulse generation
  • Gain saturation effect
  • Label erasure
  • Optical label switching (OLS)
  • Optical network
  • Semiconductor optical amplifier (SOA)

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