基于低速信号注入法珀（FP）激光器可实现无微波本振光纤无线通信(RoF)上变频技术，但是得到的微波本振频率受到FP激光器中四波混频效率的限制，难以直接实现毫米波载波的RoF上变频。在注入锁定FP激光器的基础上提出了一种新型的、低成本的在光域直接产生毫米波载波的RoF上变频方案。由于注入锁定FP激光器过程中的动态载流子特性，上变频得到的载波信号带有正啁啾，故可用负色散介质对载波信号进行脉冲压缩，从而增强高阶谐波分量以完成毫米波载波的无本振RoF上变频。实验中采用2 Gb/s非归零码注入实现了载波为13.9 GHz，用2.5 Gb/s注入实现了载波分别为13.9 GHz和15.4 GHz的RoF上变频，并采用上述方案分别实现27.8 GHz和30.8 GHz的倍频载波分量的增强。进一步实验验证了用本方案实现载波频率约60 GHz可调谐毫米波的无本振RoF上变频的可行性。

A novel technique to achieve optical frequency up-conversion in millimeter wave (mm) band without any local microwave oscillator is proposed. It is hard to directly get mm band carrier frequency because the efficiency of mode-locking decreases as the carrier frequency increases. Thanks to dynamic charge carrier density responses during the injection locking of Febry-Perot laser diode (FP-LD), the wavelength of the leading part of carrier is red-shifted while that of falling part is blue-shifted. With a suitable negative dispersion device, the carrier pulse is compressed and its 2nd harmonic is greatly enhanced. Thus it is feasible to make the radio over fiber(RoF) frequency up-conversion in mm band. Subcarriers of 13.9 GHz are obtained from 2 Gb/s nonreturn-to-zero(NRZ) signal injection while that of both 13.9 GHz and 15.4 GHz are obtained from 2.5 Gb/s NRZ signal injection into FP-LD. And the 2nd harmonic at 27.8 GHz and 30.8 GHz are enhanced by more than 20 dB, 25 dB and 23 dB, respectively. The simpleness and tunability of the proposed scheme make it a great candidate for low cost mm band RoF frequency upconversion up to 60 GHz.