Title :
Performance evaluation of 40 Gb/s directly-modulated optical fiber communication systems
Author :
Albeladi, Fwoziah T. ; Ahmed, Moustafa F. ; Bakry, Ahmed H.
Author_Institution :
Dept. of Phys., King Abdulaziz Univ., Jeddah, Saudi Arabia
Abstract :
This paper introduces simulation of performance evaluation of 40 Gb/s optical fiber communication systems using directly modulated high-speed distributed feedback (DFB) lasers. Electrical signals of return to zero (RZ) and non-return to zero (NRZ) formats with 210-1 pseudorandom bit sequences are used to modulate the laser. A standard single-mode fibers (SSMF) is used. The laser has a blue shift of the lasing frequency and frequency chirps of 65 and 78 GHz under RZ and NRZ formats, which limit the fiber length to 2.51 and 1.37 km. Comparison of the results with those obtained by using a positive non-zero dispersion-shifted fiber (+D-NZDSF) is presented.
Keywords :
chirp modulation; distributed feedback lasers; optical fibre communication; optical fibre dispersion; optical modulation; random sequences; +D-NZDSF; DFB lasers; NRZ format; SSMF; bit rate 40 Gbit/s; blue shift; directly modulated optical fiber communication; electrical signals; frequency 65 GHz; frequency 78 GHz; frequency chirps; high-speed distributed feedback lasers; nonreturn to zero format; positive nonzero dispersion-shifted fiber; pseudorandom bit sequences; standard single-mode fibers; Fiber lasers; Modulation; Optical fiber dispersion; Optical fiber networks; Optical fibers; bit error rate; dispersion; fiber communications; semiconductor laser;
Conference_Titel :
Electronics, Communications and Photonics Conference (SIECPC), 2013 Saudi International
Conference_Location :
Fira
Print_ISBN :
978-1-4673-6196-5
Electronic_ISBN :
978-1-4673-6194-1
DOI :
10.1109/SIECPC.2013.6550757
