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Optica Publishing Group
  • Optical Fiber Communications Conference
  • OSA Trends in Optics and Photonics (Optica Publishing Group, 2002),
  • paper WM3

Optical signal processing with electro-absorption modulators

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Abstract

Electro-absorption modulators (EAMs) have been intensively studied and developed, because they offer advantages in small chirp, low driving voltage, high stability and easy integration with lasers. Broadband EAMs for digital data-encoding have been developed up to 40 Gbit/s.1,2 Narrow-band EAMs with high frequency operation were proposed using microwave techniques,3,4 and a 60 GHz operation has been demonstrated for radio-on-fiber application.4 An optical signal shaping function with electrical signals, such as optical short pulse generation5 and optical gating,6 was proposed and demonstrated. In addition, an optical signal shaping function with optical pumping signals, that is to say, wavelength conversion based on cross-absorption modulation, has recently been demonstrated.7 The function was applicable to the optical limiter,8 the WDM-OTDM transmultiplexer9,10 and the optical 3R regenerator.11 This paper reviews the optical signal shaping functions of EAMs and their applications for all-optical signal processing.

© 2002 Optical Society of America

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