Title :
Wavelength-Tunable Laser for Signal Remodulation in WDM Access Networks Using DPSK Downlink and OOK Uplink
Author :
Yeh, C.H. ; Chow, C.W. ; Shih, F.Y. ; Wang, C.H. ; Wu, Y.F. ; Chi, S.
Author_Institution :
Inf. & Commun. Res. Labs., Ind. Technol. Res. Inst., Hsinchu, Taiwan
Abstract :
In this investigation, a simple wavelength-tunable laser based on a Fabry-Perot laser diode (FP-LD) and an erbium-doped fiber amplifier to serve as a downlink signal in a colorless wavelength-division-multiplexed passive optical network (PON) is proposed and experimentally demonstrated. The tuning range of the proposed laser is between 1529.48 and 1560.72 nm, and the output performance of proposed laser is discussed. Colorless operation is implemented by using an FP-LD and a reflective semiconductor optical amplifier in each optical network unit for uplink signal remodulation, respectively. In addition, error-free data signal remodulation using 10-Gb/s downlink differential phase-shift keying and 2.5-Gb/s uplink on-off keying is achieved in a 25-km reach PON.
Keywords :
amplitude shift keying; differential phase shift keying; erbium; optical communication equipment; optical fibre amplifiers; optical fibre networks; optical modulation; semiconductor lasers; semiconductor optical amplifiers; wavelength division multiplexing; DPSK downlink; Fabry-Perot laser diode; JkJk:Er; OOK uplink; WDM access network; bit rate 10 Gbit/s; bit rate 2.5 Gbit/s; colorless wavelength division multiplexed passive optical network; differential phase shift keying; distance 25 km; erbium doped fiber amplifier; on-off keying; reflective semiconductor optical amplifier; signal remodulation; wavelength 1529.48 nm; wavelength 1560.72 nm; wavelength tunable laser; Fabry–PÉrot laser diode (FP-LD); millimeter- wave; radio-over-fiber;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2009.2032072
