Technology News

SATURDAY, OCTOBER 6, 2012 High-power coherent semiconductor laser design operating in the IR region Author Jha Asu R · · · Title: High-power coherent semiconductor laser design operating in the IR region Authors: Jha, Asu R. Affiliation: AA(Jha Technical Consulting Services) Publication: Proc. SPIE Vol. 3465, p. 72-78, Millimeter  and Submillimeter Waves IV, Mohammed N. Afsar; Ed. ( SPIE Homepage ) Publication Date: 11/1998 Origin: SPIE Bibliographic Code: 1998SPIE.3465...72J Abstract Diode-pumped solid state ( DPSS ) lasers employing diode arrays and optical crystals suffer from excessive weight, low conversion efficiency, and high fabrication cost .  This  paper  reveals a unique design of coherent, high performance  InGaAsP/InP strained-layer quantum-well (QW) semiconductor laser capable of delivering CW power  output greater than 500 mw at 1.55 microns.  It is important to mention that InGaAsP/InP strained-layer double

Google this month released a major update to its Translate app with a super-nifty function that lets you translate signs by simply pointing your phone camera at them. The feature works when translating basic text between English and Spanish, Portuguese, French, Russian, Italian and German. So if you’re traveling and need to know exactly what that street sign says, this should be a great feature for you. Sometimes the camera has trouble finding words — particularly if you aren't holding it steady — but it’s not bad for a free app. The company also added a feature that translates conversation more quickly. Users can pick two languages to translate between, and the app will automatically decipher which language is being spoken at the time. The spoken translation feature requires a data connection; the text translation does not. Free, for Android and iOS devices. Description Break through language barriers with Google Translate. • Translate between 90 languages • Converse n