Wavelength- and time-selective reconfigurable optical add/drop multiplexer using time-frequency domain processing

  • Authors:

  • Tsuyoshi Konishi;Ryosuke Itoh;Kazuyoshi Itoh

  • Affiliations:

  • Graduate School of Engineering, Osaka University, Suita, Osaka, Japan;Graduate School of Engineering, Osaka University, Suita, Osaka, Japan;Graduate School of Engineering, Osaka University, Suita, Osaka, Japan

  • Venue:
  • EURASIP Journal on Advances in Signal Processing - Special issue on applications of time-frequency signal processing in wireless communications and bioengineering
  • Year:
  • 2010

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Abstract

We propose and demonstrate a wavelength- and time-selective reconfigurable optical add/drop multiplexer (ROADM) using time-frequency domain processing. The proposed ROADM is realized by allocating wavelength channels and time slots to corresponding 2D spatial channels on a MEMS optical switch. Experimental results show the wavelength- and time-selective drop operation for a signal with equivalent 3.2 Tb/s (0.64 Tb/s×5 channels), and the reconfigurability by the switching operation of the MEMS optical switch.