Abstract

This work proposes a cost-effective, continuously tunable and filterless optical millimeter-wave (MMW) signal generation employing frequency octupling. Optical MMW signals with 30-dB undesired sideband suppression ratios can be obtained. Since no optical filtering is required, the proposed system can be readily implemented in wavelength-division-multiplexing (WDM) systems. V-band 60-GHz and W-band 80-GHz optical MMW signals are experimentally demonstrated. Because of the high undesired sideband suppression ratio, 60-GHz waveform with 50% duty cycle is observed. The single-sideband (SSB) phase noise of the generated 60-GHz signal is −73 dBc/Hz at 10 kHz. The proposed system is a viable solution for the future ultra-high frequency MMW applications up to 320 GHz using the external modulator with a limited bandwidth of 40 GHz.

© 2009 OSA

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History
Original Manuscript: July 15, 2009
Manuscript Accepted: October 14, 2009
Revised Manuscript: September 29, 2009
Published: October 16, 2009

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Author Affiliations

Peng-Chun Peng

Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, Taiwan R.O.C.

Po-Tsung Shih, Wen-Jr Jiang, Jason (Jyehong) Chen

Department of Photonics and Institute of Electro-Optical Engineering, National Chiao-Tung University, Hsinchu, Taiwan 300, R.O.C.

Sien Chi

Department of Photonics Engineering, Yuan-Ze University, Chung Li, Taiwan 320, R.O.C.

Chun-Ting Lin

Institute of Photonic System, National Chiao-Tung University,Tainan Taiwan 711, ROC.

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