Employing injection-locked Fabry–Perot laser diodes to improve bidirectional WDM–PON performances

• Published in: Optics communications Vol. 270; no. 2; pp. 211 - 216
• Main Authors: Lu, Hai-Han, Ma, Hsien-Li, Chuang, Yao-Wei, Chi, Yu-Chieh, Liao, Che-Wei, Peng, Hsiang-Chun
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.02.2007; Elsevier Science
• Subjects: Applied sciences; Exact sciences and technology; Injection-locked Fabry–Perot laser diode; Optical telecommunications; Passive optical network; Telecommunications; Telecommunications and information theory; Wavelength-division-multiplexing; Injection-locked Fabry–Perot laser diode; Passive optical network; Wavelength-division-multiplexing; Injection-locked Fabry-Perot laser diode; Single mode fiber; Bit error rate; Optical telecommunication; Eye diagram; Wavelength division multiplexing; Adaptive filter; Injection locking; Optical fiber network; Feedback; Fabry Perot resonator; Optical fiber
• ISSN: 0030-4018; 1873-0310
• DOI: 10.1016/j.optcom.2006.09.054

We proposed and demonstrated a bidirectional wavelength-division-multiplexing (WDM)–passive optical network (PON) employing injection-locked Fabry–Perot laser diodes (FP LDs) at both transmitting sites, and adaptive filters at both receiving sites. Injection-locked FP LDs, a particularly inexpensive option, are used to replace the conventional distributed feedback (DFB) LDs in WDM–PON. Adaptive filters are attractive because they can track the variations and compensate the nonlinear distortions. Transmission performance over 20km of a standard single-mode fiber (SMF) was investigated. Improved performance of bit error rate (BER), better and clear eye diagram were achieved in our proposed WDM–PON.