Title :
Integrated Gain Switched Comb Source for 100 Gb/s WDM-SSB-DD-OFDM System
Author :
Tong Shao ; Rui Zhou ; Gutierrez Pascual, M. Deseada ; Anandarajah, Prince M. ; Barry, Liam P.
Author_Institution :
Rince Inst., Dublin City Univ., Dublin, Ireland
Abstract :
We demonstrate a 100 Gb/s short reach system using a multicarrier transmitter based on a gain switched monolithically integrated laser. An optical comb source with 12.5-GHz free spectral range is achieved by gain-switching an integrated passive feedback laser. The 100 Gb/s wavelength division multiplexed, single sideband, direct detection, orthogonal frequency division multiplexed (WDM-SSB-DD-OFDM) system operates over 25 km standard single mode fiber exhibiting a spectral efficiency of 1.8 b/s/Hz. Receiver sensitivity of -14.2 dBm is achieved after 25 km transmission. Performance optimization with phase and amplitude precompensation is employed to improve the SSB OFDM modulation thereby reducing the interchannel interference and overcoming the power fading induced by the optical filter. We also present a theoretical analysis of the SSB-OFDM modulation.
Keywords :
OFDM modulation; integrated optics; integrated optoelectronics; laser feedback; light interference; light sources; optical fibre communication; optical fibre filters; optical fibre testing; optical modulation; optical receivers; optical switches; optical transmitters; WDM-SSB-DD-OFDM system; amplitude precompensation; distance 25 km; frequency 12.5 GHz; gain switched monolithically integrated laser; integrated gain switched optical comb source; integrated passive feedback laser; interchannel interference reduction; light transmission; multicarrier transmitter; optical filter; optical receiver sensitivity; orthogonal frequency division multiplexing; phase precompensation; single mode fiber; single sideband OFDM modulation; wavelength division multiplexing; Amplitude modulation; OFDM; Optical amplifiers; Optical modulation; Optical receivers; Optical transmitters; Wavelength division multiplexing; Integrated passive feedback laser (PFL); integrated passive feedback laser (PFL); optical comb source; orthogonal frequency division multiplexing (OFDM); short reach; single sideband (SSB);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2015.2441654
