Title :
All-Optical Clock Recovery for 20 Gb/s Using an Amplified Feedback DFB Laser
Author :
Sun, Yu ; Pan, Jiao Qing ; Zhao, Ling Juan ; Chen, Weixi ; Wang, Wei ; Wang, Li ; Zhao, Xiao Fan ; Lou, Cai Yun
Author_Institution :
Key Lab. of Semicond. Mater. Sci., CAS, Beijing, China
Abstract :
We report all optical clock recovery based on a monolithic integrated four-section amplified feedback semiconductor laser (AFL), with the different sections integrated based on the quantum well intermixing (QWI) technique. The beat frequency of an AFL is continuously tunable in the range of 19.8-26.3 GHz with an extinction ratio above 8 dB, and the 3-dB linewidth is close to 3 MHz. All- optical clock recovery for 20 Gb/s was demonstrated experimentally using the AFL, with a time jitter of 123.9 fs. Degraded signal clock recovery was also successfully demonstrated using both the dispersion and polarization mode dispersion (PMD) degraded signals separately.
Keywords :
distributed feedback lasers; integrated optics; optical communication equipment; optical dispersion; quantum well lasers; synchronisation; all optical clock recovery; amplified feedback DFB laser; bit rate 20 Gbit/s; monolithic integrated four section amplified feedback semiconductor laser; polarization mode dispersion; quantum well intermixing technique; Clocks; Degradation; Frequency; Integrated optics; Laser feedback; Optical feedback; Polarization mode dispersion; Quantum well lasers; Semiconductor lasers; Stimulated emission; All optical clock recovery; distributed feedback (DFB) lasers; injection locking; optical signal processing; quantum well intermixing (QWI); semiconductor lasers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2010.2055539
