Title :
Simultaneously mitigating self-heating induced distortion and chirp effect of DML in TWDM-PON system using nonlinear modulation curve of EAM
Author :
Hanlin Feng ; Shilin Xiao ; Fok, Mable P.
Author_Institution :
State Key Lab. of Adv. Opt. Commun. Syst. & Networks, Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
In this paper, we propose an upstream receiver for time and wavelength division multiplexed passive optical network (TWDM-PON) system to simultaneously mitigate self-heating induced distortion and chirp effect of directly modulated laser (DML). Using the nonlinear modulation curve of electro-absorption modulator (EAM), signal distortion is easily suppressed after aligning to the zero-slope region of nonlinear modulation curve. Thus, the dilemma between chirp management filtering and large wavelength shift generated by self-heating effect can be solved. We experimentally validate signal distortion compensation of 1 μs burst length with 10 Gb/s data rate and chirp management performance of 25 km, 45 km and 65 km single mode fiber (SMF) is also analysed.
Keywords :
chirp modulation; electroabsorption; fibre lasers; optical distortion; optical modulation; optical receivers; passive optical networks; time division multiplexing; wavelength division multiplexing; DML; EAM; SMF; TWDM-PON system; burst length; chirp management filtering; data rate; directly modulated laser; electroabsorption modulator; large wavelength shift; nonlinear modulation curve; signal distortion compensation; signal distortion suppression; simultaneous chirp effect mitigation; simultaneous self-heating induced distortion mitigation; single mode fiber; time-and-wavelength division multiplexed passive optical network system; zero-slope region; Chirp; Modulation; Nonlinear distortion; Optical distortion; Passive optical networks; Receivers; DML; EAM; TWDM-PON; chirp management; nonlinear; self-heating;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193507
