Energy efficient 40 Gbit/s transmission with 850 nm VCSELs at 108 fJ/bit dissipated heat

• Published in: Electronics letters 2013-05, Vol.49 (10), p.666-667
• Main Authors: Wolf, P, Moser, P, Larisch, G, Li, H, Lott, J.A, Bimberg, D
• Format: Article
• Language: English
• Subjects: Applied sciences; bit rate 36 Gbit/s; bit rate 40 Gbit/s; Circuit properties; distance 200 m; distance 50 m; Electric, optical and optoelectronic circuits; Electronics; energy efficient transmission; energy‐efficient oxide‐confined vertical‐cavity surface‐emitting lasers; error‐free data transmission; Exact sciences and technology; Fiber optics; Fundamental areas of phenomenology (including applications); heat dissipation; Integrated optics. Optical fibers and wave guides; Lasers; Microcavity and microdisk lasers; OM3 plus multimode optical fibre error‐free operation; Optical and optoelectronic circuits; optical fibre communication; optical interconnections; optical interconnects; Optics; Photonics; Physics; surface emitting lasers; VCSEL; wavelength 850 nm
• ISSN: 0013-5194; 1350-911X; 1350-911X
• DOI: 10.1049/el.2013.0617

Energy-efficient oxide-confined 850 nm vertical-cavity surface-emitting lasers (VCSELs) for optical interconnects are presented. Error-free data transmission at 40 Gbit/s is achieved with a record low dissipated heat per bit (energy efficiency) of only 108 fJ/bit. At 36 Gbit/s across 200 m and at 40 Gbit/s across 50 m of OM3 plus multimode optical fibre error-free operation is achieved with energy efficiencies of 127 and 119 fJ/bit, respectively.