Title :
Automatic wavelength allocation method using Rayleigh backscattering for a WDM-PON with tunable lasers
Author :
Sang-Rok Moon ; Hoon-Keun Lee ; Chang-Hee Lee
Author_Institution :
Div. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol. (KAIST), Daejeon, South Korea
Abstract :
We propose an automatic wavelength control method using Rayleigh backscattering in a feeder fiber for tunable lasers employed in a wavelength-division multiplexing passive optical network. We demonstrate two realization methods, maximizing backscattered power and maximizing the second harmonic component with wavelength modulation. We analyze their limiting factors and impacts on the system performance. We use a VCSEL as a low-cost tunable light source.
Keywords :
Rayleigh scattering; backscatter; laser cavity resonators; laser tuning; optical communication equipment; optical modulation; passive optical networks; semiconductor lasers; surface emitting lasers; wavelength assignment; wavelength division multiplexing; Rayleigh backscattering; VCSEL; WDM-PON; automatic wavelength allocation method; automatic wavelength control method; backscattered power; feeder fiber; limiting factors; low-cost tunable light source; realization methods; second harmonic component; system performance; tunable lasers; wavelength modulation; wavelength-division multiplexing passive optical network; Backscatter; Modulation; Optical fibers; Passive optical networks; Tuning; Vertical cavity surface emitting lasers; Wavelength measurement; Automatic; Optical fiber communication; Passive optical network; Tunable; Wavelength control;
Journal_Title :
Optical Communications and Networking, IEEE/OSA Journal of
DOI :
10.1364/JOCN.5.000190
