27 April 2000 VCSEL arrays for 10-Gb/s multimode fiber optical interconnects
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Proceedings Volume 3952, Optoelectronic Interconnects VII; Photonics Packaging and Integration II; (2000) https://doi.org/10.1117/12.384391
Event: Symposium on Integrated Optoelectronics, 2000, San Jose, CA, United States
In this paper, we report on some transmitter and optical fiber technologies for 10 Gb/s speed datacom systems. Primarily to enable direct flip-chip integration with silicon CMOS circuits for highly parallel interchip interconnects, we have fabricated 2D vertical-cavity surface-emitting laser arrays featuring 4*8 elements on a 250 micrometers pitch. Arrays emitting in the 980 nm spectral region exhibit excellent homogeneity and operation data like 0.8 mA threshold current, below 1.5 V threshold voltage, 1 mW output power at 2 mA current, and more than 35 percent conversion efficiency in the 2 to 5 mW power range. Bottom emission of 850 nm arrays is enabled by etching holes into the opaque GaAs substrate. Due to less efficient heat removal, devices are currently limited to about 2 mW light output at 6 mA current. Top-emitting 850 nm array elements have been employed for high-speed data transmission experiments. First we describe the characteristics of a new 50 micrometers core diameter silica multimode fiber that allows for 10 Gb/s data rate operation over a record distance of 1.6 km. Finally, a 9 Gb/s transmission experiment over 100 m length of a rather promising perfluorinated plastic optical fiber for low-cost data links is presented.
© (2000) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Rainer Michalzik, Rainer Michalzik, Roger King, Roger King, Giorgio Giaretta, Giorgio Giaretta, Roland Jaeger, Roland Jaeger, Karl Joachim Ebeling, Karl Joachim Ebeling, } "VCSEL arrays for 10-Gb/s multimode fiber optical interconnects", Proc. SPIE 3952, Optoelectronic Interconnects VII; Photonics Packaging and Integration II, (27 April 2000); doi: 10.1117/12.384391; https://doi.org/10.1117/12.384391

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