Datacom multi-mode optical link using 850 nm VCSELs at 25 Gb/s

Author

Mishra, Akhilesh Kumar ; Eisenstein, Gadi ; Gershikov, Alexander

Author_Institution

Electr. Eng. Dept., Technion - Israel Inst. of Technol., Haifa, Israel

fYear

2014

fDate

3-5 Dec. 2014

Firstpage

1

Lastpage

4

Abstract

We present a numerically study of the transmission of 25Gb/s multimode optical signal comprising of 15 bit nonreturn-to-zero (NRZ) sequence over a length more than 50 meters in a graded index multi-mode (GI-MM) fiber with given specification at 850 nm of wavelength. Further, we study the wavelength dependence of relative delay (RD) and group velocity dispersion (GVD) parameters, and observe RD to be a major signal distorting factor in short distance communication links. The eye diagrams have been plotted at different communication wavelength and noticed that the eye remains open widely even after 50 meters of propagation only at 850 nm of wavelength and as the signal propagates further the eye starts to deteriorate.

Keywords

gradient index optics; laser cavity resonators; optical communication equipment; optical fibre communication; optical links; surface emitting lasers; GI-MM; GVD; NRZ; VCSEL; bit rate 25 Gbit/s; datacom multimode optical link; graded index multimode fiber; group velocity dispersion; multimode optical signal; nonreturn-to-zero sequence; relative delay; short distance communication links; signal distortion; wavelength 850 nm; Optical fiber cables; Optical fiber communication; Optical fiber dispersion; Optical fiber polarization; Optical fiber theory; Vertical cavity surface emitting lasers; VCSEL; datacom; fiber optics links; multi-mode fiber;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Electronics Engineers in Israel (IEEEI), 2014 IEEE 28th Convention of

Conference_Location

Eilat

Print_ISBN

978-1-4799-5987-7

Type

conf

DOI

10.1109/EEEI.2014.7005789

Filename

7005789