Advanced Photonic Sciences

The new emerging field of photonics has significantly attracted the interest of many societies, professionals and researchers around the world. The great importance of this field is due to its applicability and possible utilization in almost all scientific and industrial areas. This book presents some advanced research topics in photonics. It consists of 16 chapters organized into three sections: Integrated Photonics, Photonic Materials and Photonic Applications. It can be said that this book is a good contribution for paving the way for further innovations in photonic technology. The chapters have been written and reviewed by well-experienced researchers in their fields. In their contributions they demonstrated the most profound knowledge and expertise for interested individuals in this expanding field. The book will be a good reference for experienced professionals, academics and researchers as well as young researchers only starting their carrier in this field

Advances in Middle Infrared Laser Crystals and Its Applications

In the last twenty years, there has been a growing interest in middle infrared (mid-IR) laser crystals and their application to achieve mid-IR laser radiations, which has benefited from the development of novel mid-infrared crystals and the improving quality of traditional mid-IR crystals. Moreover, these works have promoted the development of related technical applications. This Special Issue of the journal Crystals focuses on the most recent advances in mid-IR laser crystals, from materials to laser sources and applications. It aims to bring together the latest developments in novel mid-IR crystals, improvements in the quality of mid-IR crystals, mid-IR non-linear crystals and mid-IR lasers, as well as the application of mid-IR technology in spectroscopy, trace gas detection and remote sensing, optical microscopy and biomedicine. Aspiring authors are encouraged to submit their latest original research, as well as forward-looking review papers, to this Special Issue

Novel L-band multiwavelength raman fiber laser based on three-stage mixed-cascaded phosphor-silicate raman process

Conference Name:International Conference on Advanced Infocomm Technology 2011, ICAIT 2011. Conference Address: Wuhan, China. Time:July 11, 2011 - July 14, 2011.We experimentally demonstrate an L-band multiwavelength Raman fiber laser based on the three-mixed-cascaded stimulated Raman scattering (SRS) of both P2O5 and SiO2/GeO2 in a phosphosilicate fiber. A 1064 nm Yb3+-doped double-clad fiber laser (YDCFL) is used to pump a spool of 1-km phosphosilicate fiber. The three-stage mixed-cascaded Raman cavity is arranged as: 1) the 1st- and 2nd-order Raman cavities use the SRS of P2O5 and are formed by the two pairs of highly-reflective fiber Bragg gratings at 1239 and 1484 nm, respectively; 2) the 3rd-order Raman cavity uses the SRS of SiO 2/GeO2 and is completed by a polarization-maintaining fiber (PMF) Sagnac comb filter and a broadband fiber loop mirror. When the injected pump power from YDCFL is 4.8 W, up to 12-wavelength stable oscillation around 1601 nm has been obtained with wavelength spacing of 0.58 nm and extinction ratio of >30 dB

Bibliography of Lewis Research Center technical publications announced in 1993

This compilation of abstracts describes and indexes the technical reporting that resulted from the scientific and engineering work performed and managed by the Lewis Research Center in 1993. All the publications were announced in the 1993 issues of STAR (Scientific and Technical Aerospace Reports) and/or IAA (International Aerospace Abstracts). Included are research reports, journal articles, conference presentations, patents and patent applications, and theses

NASA Tech Briefs, July 1997

Topics: Mechanical Components; Electronic Components and Circuits; Electronic Systems; Physical Sciences; Materials; Computer Software; Mechanics; Machinery/Automation; Manufacturing/Fabrication; Life Sciences