A Novel and Tunable Frequency-Upconversion Based on FP-LD Injection of One Low Bit-Rate Signal Without Any RF Local Oscillator

作者：Wu Bo^*; Yu Jinlong; Zhang Zs; Han Bingchen; Luo Jun; Guo Jz; Wang Wenrui; Wang Ju; Yang Enze

来源：IEEE Photonics Technology Letters, 2010, 22(14): 1027-1029.

DOI：10.1109/LPT.2010.2049197

• All-optical upconversion
• four-wave mixing (FWM)
• optically injection-locking
• radio-over-fiber (RoF)
• side-mode suppression ratio (SMSR)

An all-optical frequency-upconversion is presented by injecting a low bit rate signal into a Fabry-Perot laser diode (FP-LD) without any radio-frequency local oscillator. One of the FP-LD lasing modes is locked by generated sideband through four-wave-mixing effect in FP-LD. The generated microwave sub-carrier could be tunable by varying the power and polarization of the injected signal. The input signal at the data rate of 1.25, 2.5, and 2.7 Gb/s with nonreturn-to-zero format are upconverted to a subcarrier modulation signal at upcoversion frequencies of 20, 10, and 16.2 GHz, respectively. The single sideband phase noise of -81.2 and -87.7 dBc/Hz (10-kHz frequency deviation) at 16.2-GHz subcarrier are demonstrated. The difference of side-mode suppression ratio at the FP-LD output point is also analyzed.

• 出版日期2010-7-15
• 单位天津大学; 山西大同大学