17 February 2005
Making light with silicon
Last month, Intel researchers reported a notable advance in optoelectronics (Nature 433, 292–294; 2005). They had produced an all-silicon laser on a single chip, making silicon, the foundation of modern microelectronics, a real prospect for optical applications. Now Intel's labs report the first experimental demonstration of a continuous wave laser in a silicon waveguide cavity on a single chip. This is another step towards silicon-based optoelectronic circuits for applications in communications and computing.
A continuous-wave Raman silicon laser
HAISHENG RONG, RICHARD JONES, ANSHENG LIU, ODED COHEN, DANI HAK, ALEXANDER FANG & MARIO PANICCIA
Nature 433, 725–728 (2005); doi:10.1038/nature03346
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Optoelectronics: Silicon shines on
JEROME FAIST
Researchers are getting better at making silicon do what it really does not like to do — emit light. A silicon laser is now demonstrated that has promising features for future practical applications.
Nature 433, 691–692 (2005); doi:10.1038/433691a
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