29 Mar '15, 3am

Nanolaser enables on-chip Photonics; using light to communicate instead of electricity - #photonics

Nanolaser enables on-chip Photonics; using light to communicate instead of electricity - #photonics

PORTLAND, Ore.-- Sending communications signals around chips, and between chips and boards is an area of intense research worldwide. Now University of Washington (Seattle) and Stanford University (Calif.) have created an on-chip laser that can be electro-modulated for easy optical communications. Most materials from which on-chip lasers can be built are not compatible with silicon substrates, but these researchers has high hopes for their atomically thin (just 0.7 nanometers thick) laser can be integrated onto standard silicon chips. "Today we are using a tungsten photonics cavity sandwiched between layers of selenium, but we hope to achieve the same results with silicon nitride in the future," said EE professor Arka Majumdar, who did the work with fellow professor Xiaodong Xum and his doctoral candidate assistant, Sanfeng Wu. An ultra-thin semiconductor using just three a...

Full article: http://www.eetimes.com/document.asp?doc_id=1326138&

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