Differential processing using an arrayed-waveguide grating

Hirokazu Takenouchi, Hiroyuki Tsuda, Chikara Amano, Takashi Gohtf, Katsunari Okamotq, Takashi Kurokawa

Research output: Contribution to journalArticle

Abstract

Y This paper reports on time-space conversionbased differential processing of optical signals using a highresolution arrayed-waveguide grating (AWG) and a spatial filter at a wavelength of 1.55jim. We clarify the advantages of the AWG device and show where it is applicable. In order to reduce loss at the spatial filter, we propose a new phase-only filter that functions as a differential filter. The difference between the exact differential filter and the proposed phase-only filter is calculated theoretically. We confirm experimentally that the optical pulse can be differentiated by the proposed filter. For application of differential processing, we also proposed a phase modulation to amplitude modulation (PM-AM) conversion and demonstrated the PM-AM conversion at 10Gbit/s signals using a PSK-nonreturn-to-zero (NRZ) format.

Original languageEnglish
Pages (from-to)1518-1523
Number of pages6
JournalIEICE Transactions on Electronics
VolumeE82-C
Issue number8
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • Arrayed-waveguide grating
  • Differential processing
  • Optical fiber communication
  • Optical signal processing
  • Ultrafast optical pulse

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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  • Cite this

    Takenouchi, H., Tsuda, H., Amano, C., Gohtf, T., Okamotq, K., & Kurokawa, T. (1999). Differential processing using an arrayed-waveguide grating. IEICE Transactions on Electronics, E82-C(8), 1518-1523.