Abstract

We propose the multifrequency upconversion of optical millimeter-wave (mm-wave) signal generation by an I/Q modulator. With a $90\mathrm{deg}$ phase shift, two mm-waves at different frequencies can be easily separated without interference. The receiver power penalty is less than $1\mathrm{dB}$ for the downlink 40 and $60\mathrm{GHz}$ mm-wave signals after transmission over $20\mathrm{km}$ of standard single-mode fiber.

© 2010 Optical Society of America

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