Millimeter-wave Upconversion By Nonlinear-photodetection Using A Carrier Generated From A remote Mode-locked Semiconductor Laser

Abstract

We propose and demonstrate a scheme for upconversion of [F subcarrier signals with a millimeter-wave carrier using nonlinear photodetection and remote carrier supply. In a preliminary experiment, the former is realized by using ,a commercially available photodiode under its saturation condition, and the latter is provided by a suibharmonically hybrid mode-locked semiconductor laser. It is demonstrated that a 66-GHz carrier generated from the mode-llocked laser and 400-MHz subcarriers of IF laser output are successfully mixed after transmission over a 30-km non-dispersionshifted optical fiber.