CMOS driver circuits make optical card-to-card datacomms practical

Yeates, Harry
June 2006
Electronics Weekly;6/21/2006, Issue 2246, p10
Trade Publication
This article reports that International Business Machines Corp. is developing the means to use CMOS transmitter macros for directly modulating laser light sources in card-to-card optical links. The technology, already demonstrated driving vertical cavity surface emitting lasers (VCSEL) in a 5Gbit/s serial connection, is intended to reduce the power, area, and cost of optical communications, and make them viable for high-density datacomms applications. VCSELs offer a number of advantages for the optical source, alongside being driven straight off the chip. A key problem in using large numbers of densely distributed optical channels is ensuring accurate alignment of the waveguide with the source.


Related Articles

  • Experimental investigation of plasmofluidic waveguides. Bonwoo Ku; Jin-Soo Shin; Min-Suk Kwon // Applied Physics Letters;11/16/2015, Vol. 107 Issue 20, p201104-1 

    Plasmofluidic waveguides are based on guiding light which is strongly confined in fluid with the assistance of a surface plasmon polariton. To realize plasmofluidic waveguides, metal-insulatorsilicon- insulator-metal (MISIM) waveguides, which are hybrid plasmonic waveguides fabricated using...

  • Faster Chips on the Way. Teague, Paul E. // Design News;11/3/2003, Vol. 59 Issue 17, p54 

    Discusses the computer chip technology developed by IBM researchers that performs faster than other Complementary Metal-Oxide Semiconductors (CMOS) devices in laboratory tests. Speed of the chip technology; Features of the strained-silicon-directly-on-insulator technology; Limitations of CMOS...

  • Novel device concepts explored at IEDM. B. H. // Solid State Technology;Feb2008, Vol. 51 Issue 2, p20 

    The article focuses on the concepts of novel device discussed at the 2007 International Electron Devices Meeting (IEDM) in Washington DC. Among the new concepts presented during the conference include, International Business Machines Corp.'s (IBM) novel source/drain implant technique that allows...

  • Si charge avalanche enhances APD sensitivity beyond 100 GHz. KAH-WEE ANG; GUO-QIANG LO PATRICK // Laser Focus World;Aug2010, Vol. 46 Issue 8, p41 

    The article focuses on the complementary metal-oxide semiconductor (CMOS)-compatible waveguide-integrated avalanche photodetector (APD) approach developed by the researchers from the Institute of Microelectronics (IME) at the Agency for Science, Technology and Research in Singapore. The APD...

  • Heterogeneous integration of InGaAsP microdisk laser on a silicon platform using optofluidic assembly. Tien, Ming-Chun; Ohta, Aaron T.; Yu, Kyoungsik; Neale, Steven L.; Wu, Ming C. // Applied Physics A: Materials Science & Processing;Jun2009, Vol. 95 Issue 4, p967 

    Heterogeneous integration of InGaAsP microdisk lasers on a silicon platform is demonstrated experimentally using an optofluidic assembly technique. The 200-nm-thick, 5- and 10-μm-diameter microdisk lasers are fabricated on InP and then released from the substrates. They are reassembled on a...

  • Race heats up for the silicon laser. Jones-Bey, Hassaun A. // Laser Focus World;Sep2006, Vol. 42 Issue 9, p19 

    The article focuses on the $3.6 million U. S. Department of Defense grant to a multi-university research initiative for the demonstration of an electrically pumped silicon laser in three years. The main purpose of this research is to investigate whether the lasers could be integrated into...

  • VCSELs are fully integrated into and planarized with silicon CMOS ICs.  // Laser Focus World;Oct2008, Vol. 44 Issue 10, p17 

    The article focuses on the integration of verticalcavity surface-emitting lasers (VCSELS) into planarized silicon Complementary Metal Oxide Semiconductors (CMOS) integrated circuits (ICs). It notes on a research at the Massachusetts Institute of Technology, Maine of 850-nanometer-emitting...

  • Bridging the green gap. Anderson, Stephen G. // Laser Focus World;Oct2009, Vol. 45 Issue 10, p7 

    The article discusses various reports published within the issue, including one on the development of green-emitting laser diodes from Sumitomo and Osram Opto Semiconductors, another one on the development of the optically pumped semiconductor laser (OPSL) which is another green laser...

  • IBM sets CMOS roadmap for 390s.  // Electronic News (10616624);11/15/93, Vol. 39 Issue 1989, p33 

    Reports on International Business Machines Corp.'s development of custom complementary metal oxide semiconductor (CMOS) for the transformation of its mainframe business. All Systems 390s to feature the CMOS microprocessors by 1995; Microprocessor technology; Highly Parallel Supercomputing...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics