A book is a set of sheets of paper, parchment, or similar materials that are fastened together to hinge at one side. A single sheet within a book is a leaf, and each side of a leaf is a page. Writing or images can be printed or drawn on a document's pages. An electronic image that is formatted to resemble a book on a computer screen, smartphone or e-reader device is known as an electronic book
A type of Tm-doped silica fiber laser with narrow-linewidth and output wavelength near 1750 nm was firstly presented, by using a 1550 nm Er-doped fiber laser pump source and a volume Bragg grating (VBG). By means of a 15 cm Tm-doped fiber, a 400 mW continuous wave (cw) at ~1750 nm with
He proposes tunable lasers in conjunction with a waveguide grating router as the fast optical switch fabric. Planar Lightwave Devices for WDM (Chapter 9) The notion of integrated optical circuits, in analogy with integrated electronic circuits, has been in the air for over 30 years, but the vision of large-scale integration has never materialized.
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Four custom fiber Bragg grating (FBG)-based sensors are developed to monitor an artificial landslide located in Nanjing, China. The sensors are composed of a rod and two FBGs. Based on the strength of the rods, two sensors are referred to as “hard sensors” (Sensor 1 and Sensor 2), the other two
The PIST series, conducted in the Crew and Thermal Systems Division (CTSD) 11-ft Chamber, started with unmanned test precursors before moving to a human-in-the-loop phase, and continues to evolve with the eventual goal of a qualification test for the final system that will be installed on Orion. Meanwhile, the Human Exploration Spacecraft
This is a partial glossary of nautical terms; some remain current, while many date from the 17th to 19th centuries. See also Wiktionary's nautical terms, Category:Nautical terms, and Nautical metaphors in English. See the Further reading section for additional words and references.
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).. 30 min for the simulation software PHOTOSS presented in  and a 10 9 10 Gb/s NRZ-OOK transmission system with 10 9 100 km spans and a launch power of 0 dBm into the transmission fiber on a Intel CoreTM 2 Quad Q6600 with .
New 30-Minute Blood Test to Reduce Sepsis Deaths 2 days ago. AeroDef Manufacturing is a conference and trade show for the aerospace and defense manufacturing MAY. 5. CLEO 2019. ©2019 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, info@.
Controlling the internal structure over multiple length scales can produce materials with superior properties. This hierarchical design is ubiquitous in nature where materials have evolved to show maximum functionality from a limited choice of available building blocks. Mimicking the emergence of functionality from simple building blocks is a key challenge for man-made materials.
Generation of optical vortex based on computer-generated holographic gratings by photolithography Department of Physics, College of Science, National University of Defense Technology, Changsha, Hunan Province, 410073, China Such CGH grating grooves feature high resolution and ﬁne smoothness,
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