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Proceedings Paper

Mode polarization partition noise in multimode short-wavelength VCSELs
Author(s): Moncef B. Tayahi; Sivakumar Lanka; Jennifer Wang; Jan Catsten; Lutz Hofmann; Sydney Sukanta
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Paper Abstract

Vertical cavity surface emitting lasers (VCSELs) designed for 10 G Ethernet over 300 m graded index multimode fiber in general have optical aperture diameters of 7 to 10 μm; cavities of these sizes support multiple transverse modes. The circularly symmetric structures are assumed to have no polarization selection, however, we show that orthogonally polarized lasing modes are often present and cause polarization partition noise which degrades the link bit error rate (BER). When a polarization selector was used in the link to allow only one polarization, the BER improved by two-order of magnitude even with the loss of more than 32 percent of the VCSEL average emitted power.

Paper Details

Date Published: 10 February 2006
PDF: 4 pages
Proc. SPIE 6132, Vertical-Cavity Surface-Emitting Lasers X, 61320B (10 February 2006); doi: 10.1117/12.648443
Show Author Affiliations
Moncef B. Tayahi, Univ. of Nevada, Reno (United States)
Sivakumar Lanka, Univ. of Nevada, Reno (United States)
Jennifer Wang, Univ. of Nevada, Reno (United States)
Jan Catsten, Chemnitz Univ. of Technology (Germany)
Lutz Hofmann, Chemnitz Univ. of Technology (Germany)
Sydney Sukanta, San Jose City College (United States)


Published in SPIE Proceedings Vol. 6132:
Vertical-Cavity Surface-Emitting Lasers X
Chun Lei; Kent D. Choquette, Editor(s)

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