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Proceedings Paper

Shot-noise-limited VCSELs for high-speed fiber optic data transmission
Author(s): Roland Jaeger; Dieter Wiedenmann; Martin Grabherr; Christian Jung; Max Kicherer; Roger King; Felix Mederer; Michael Miller; Peter Schnitzer; Karl Joachim Ebeling
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Paper Abstract

Oxide-confined vertical-cavity surface-emitting laser diodes (VCSELs) are optimized for multi-Gbit/s data rate optical transmission systems. Noise characteristics and small-signal modulation response of high-performance transverse single- and multi-mode devices under different operation conditions are investigated. We demonstrate for the first time 12.5 Gbit/s data rate fiber transmission with a bit-error rate of better than 10-11 for pseudo-random bit sequence signals over 100m multimode fiber and 1 km single-mode fiber. Maximum electrical and optical bandwidths obtained at 3 mA driving current are 12 GHz and 13 GHz, respectively. For pumping levels above 2.8 times threshold current, the relative intensity noise is below -150 dB/Hz up to 5 GHz for output powers of about 1mW. In detail, we investigate the low frequency intensity noise of high efficiency small area selectively oxidized VCSELs emitting in the fundamental transverse mode up to 7 times threshold current at room temperature and in multiple transverse modes up to 20 times threshold current. For low temperature operation quantum efficiency of the VCSEL is increased leading to photon- number fluctuations 1.4 dB below the shot noise limit. This is to our best knowledge the largest amount of squeezing ever reported for VCSELs.

Paper Details

Date Published: 12 November 1999
PDF: 17 pages
Proc. SPIE 3896, Design, Fabrication, and Characterization of Photonic Devices, (12 November 1999); doi: 10.1117/12.370371
Show Author Affiliations
Roland Jaeger, Univ. of Ulm (Germany)
Dieter Wiedenmann, Univ. of Ulm (Germany)
Martin Grabherr, Univ. of Ulm (Germany)
Christian Jung, Univ. of Ulm (Germany)
Max Kicherer, Univ. of Ulm (Germany)
Roger King, Univ. of Ulm (Germany)
Felix Mederer, Univ. of Ulm (Germany)
Michael Miller, Univ. of Ulm (Germany)
Peter Schnitzer, Univ. of Ulm (Germany)
Karl Joachim Ebeling, Univ. of Ulm (Germany)


Published in SPIE Proceedings Vol. 3896:
Design, Fabrication, and Characterization of Photonic Devices
Marek Osinski; Soo-Jin Chua; Shigefusa F. Chichibu, Editor(s)

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