Title :
Spatially resolved detection for enhancement of multimode-fiber-link performance
Author :
Pate, Ketan M. ; Ralph, Stephen E.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
We have developed a detection technique to reduce the effect of DMD without sacrificing the advantages, such as alignment tolerance and ease of manufacturing, related to the use of multimode fiber. Our method is a simple implementation of spatially resolved equalization (SRE) that doubles the bandwidth of MMF links. Using an overfilled launch condition, we exploit the spatial diversity of the optical signal emitted from the MMF. We use a SRE detector, an InGaAs metal-semiconductor-metal (MSM) device placed 400 μm from the fiber end
Keywords :
III-V semiconductors; delays; gallium arsenide; indium compounds; intersymbol interference; metal-semiconductor-metal structures; optical fibre networks; optical fibre testing; photodetectors; 400 micron; InGaAs; InGaAs metal-semiconductor-metal detector; SRE detector; alignment tolerance; detection technique; graded-index MMF; low intermodal coupling; multimode fiber; multimode-fiber-link performance; spatially resolved detection; spatially resolved equalization; unique transverse profile; Bandwidth; Cutoff frequency; Delay; Detectors; Distributed feedback devices; Laser modes; Optical fiber LAN; Optical receivers; Spatial resolution; Vertical cavity surface emitting lasers;
Conference_Titel :
Lasers and Electro-Optics Society, 2001. LEOS 2001. The 14th Annual Meeting of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-7105-4
DOI :
10.1109/LEOS.2001.968883
