Mode polarization partition noise in multimode short-wavelength VCSELs

Moncef B. Tayahi; Sivakumar Lanka; Jennifer Wang; Jan Catsten; Lutz Hofmann; Sydney Sukanta

doi:10.1117/12.648443

10 February 2006 Mode polarization partition noise in multimode short-wavelength VCSELs

Moncef B. Tayahi, Sivakumar Lanka, Jennifer Wang, Jan Catsten, Lutz Hofmann, Sydney Sukanta

Proceedings Volume 6132, Vertical-Cavity Surface-Emitting Lasers X; 61320B (2006) https://doi.org/10.1117/12.648443
Event: Integrated Optoelectronic Devices 2006, 2006, San Jose, California, United States

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.

Citation Download Citation

Moncef B. Tayahi, Sivakumar Lanka, Jennifer Wang, Jan Catsten, Lutz Hofmann, and Sydney Sukanta "Mode polarization partition noise in multimode short-wavelength VCSELs", Proc. SPIE 6132, Vertical-Cavity Surface-Emitting Lasers X, 61320B (10 February 2006); https://doi.org/10.1117/12.648443

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