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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 25 — Dec. 7, 2009
  • pp: 22553–22565

Radio-frequency waveform generator with time-multiplexing capabilities based on multi-wavelength pulse compression

Víctor Torres-Company and Lawrence R. Chen  »View Author Affiliations

Optics Express, Vol. 17, Issue 25, pp. 22553-22565 (2009)

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We demonstrate a new photonically assisted reconfigurable radio-frequency waveform generator. The setup is based on phase modulating a multi-wavelength pulse source and subsequent compression in a dispersive medium. Under the appropriate conditions, we show that the photodetected electrical signal is broadband and coherent. Specifically, we show that this system allows for the synthesis of a reconfigurable finite-impulse-response filter where the number of filter taps is given by the number of wavelengths available from the multi-wavelength source and the reconfiguration is determined simply by their power and wavelength separation. We also show that this technique allows for time-multiplexing the synthesized waveforms, thus leading to an effective switching speed fixed by the clock rate. In particular, we show transitions between synthesized waveforms with a frequency content > 60 GHz in periods shorter than 100 ps.

© 2009 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(320.7080) Ultrafast optics : Ultrafast devices
(060.5625) Fiber optics and optical communications : Radio frequency photonics

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: September 21, 2009
Revised Manuscript: November 5, 2009
Manuscript Accepted: November 5, 2009
Published: November 24, 2009

Víctor Torres-Company and Lawrence R. Chen, "Radio-frequency waveform generator with time-multiplexing capabilities based on multi-wavelength pulse compression," Opt. Express 17, 22553-22565 (2009)

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