低成本、低功耗和可集成是目前波长变换技术所追求的目标。提出一种基于法布里-珀罗型激光二极管(FP-LD)中模式竞争机理的全光波长变换方案。通过在FP-LD不同模式中注入恒值探测光和信号光产生双模式竞争,从而实现波长变换。对波长变换产生的原理进行了分析,并对波长变换后信号的信噪比、消光比以及啁啾特性进行了实验研究。进行了10Gb/s非归零(NRZ)信号在不同波长上的波长变换及其20km传输实验。误码率测试数据结果表明波长变换后的功率代价小于1dB,各个波长信号传输20km后的功率代价均小于1dB。 Low cost, low power consumption and integration are the goals pursued by the current wavelength conversion technology. An all-optical wavelength conversion scheme based on mode competition in Fabry-Perot type laser diode (FP-LD) is proposed. Wavelength conversion is achieved by dual-mode competition by injecting constant-value probe light and signal light into different FP-LD modes. The principle of wavelength conversion is analyzed, and the signal-to-noise ratio, extinction ratio and chirp characteristics of the wavelength-converted signal are experimentally studied. The wavelength conversion of 10Gb / s non-return to zero (NRZ) signals at different wavelengths and their 20km transmission experiments were performed. The test results show that the power cost after the wavelength conversion is less than 1dB, and the power cost of each wavelength signal transmission after 20km is less than 1dB.