Local oscillator free all optical OOK signal frequency up conversion enabled by injection locking of Fabry–Pérot laser

• Published in: Optics communications Vol. 325; pp. 40 - 46
• Main Authors: Han, Bing-chen, Yu, Jin-long, Wang, Wen-rui, Wang, Ju, Shi, Yun-long
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 30.08.2014
• Subjects: Carriers; Dynamical systems; Fabry-Perot; Fabry–Pérot laser diode (FP-LD); Injection locking; Nonlinear dynamics; Optical communication; Optical communications; Oscillators; Radio frequencies; Up-conversion; Upconversion; Optical communications; Injection locking; Fabry–Pérot laser diode (FP-LD); Up-conversion
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2014.03.086

We demonstrate an all optical up-conversion system by injecting low bitrates baseband OOK signal directly into a conventional Fabry–Pérot laser diode (FP-LD). Radio frequency (RF) carrier is generated due to period-one (P1) oscillation state of nonlinear dynamics system (NDS) in the FP-LD with the injection of external optical signal. No extra high speed and expensive local oscillator is required for the up-conversion. Based on this approach, we experimentally achieved the up-conversion of 2Gbps RZ-OOK baseband signal to 12GHz and 14.28GHz RF carriers, and 2.5Gbps NRZ-OOK baseband signal to 10GHz, 18.2GHz and 20.88GHz RF carriers respectively. The obtained 20.88GHz RF carriers have a signal to side mode suppression ratio of 29dB, and phase noise of −84.2dBc/Hz@10kHz.