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

Volume

28

Issue

17

fYear

2010

Firstpage

2521

Lastpage

2525

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;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2010.2055539

Filename

5497057