Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Victor Ivan Villavicencio"'
Autor:
Edward A. Early, Robert J. Thomas, Albert Bailey, Victor Ivan Villavicencio, Kenneth S. Keppler, Justin J. Zohner, George Megaloudis, Paul K. Kennedy
Publikováno v:
Journal of Laser Applications. 20:22-36
With high-energy lasers, not only the direct laser beam can pose significant eye and skin hazards, but also light reflecting off material illuminated by the beam. Proper hazard analysis for a material irradiated by a laser relies upon the reflecting
Publikováno v:
Applied optics. 39(23)
We derive a set of concise formulas to characterize the temperature sensitivity of holographic wavelength-division multiplexers-demultiplexers (H-MUX's-H-DMUX's). The normalized parameters such as dispersion abilities, central wavelength shift rate,
Autor:
Kalyn Yaws, Alex Salazar, Victor Ivan Villavicencio, William P. Roach, Jill McQuade, Clifton D. Clark, Nichole M. Jindra, Semih S. Kumru, Ron Seaman, Jason A. Payne, Robert J. Thomas
Publikováno v:
SPIE Proceedings.
Historically, safety analyses for radio frequency emission and optical laser exposures have been designed to define the threshold level for tissue damage. To date, no experimental studies have documented damage thresholds to living tissues in the ter
Publikováno v:
WDM and Photonic Switching Devices for Network Applications II.
Due to the lack of supply of wavelength division multiplexer components and emerging communications protocols, single- mode fiber coarse wavelength division multiplexers (WDMs), multimode fiber WDMs, and single-mode fiber dense WDMs are being conside
Autor:
Baoping Guo, Jizuo Zou, James W. Horwitz, Victor Ivan Villavicencio, Ray Collins, George Chang, Jie Qiao, Feng Zhao, Bruce Morey, Ray T. Chen, Xuegong Deng
Publikováno v:
WDM and Photonic Switching Devices for Network Applications II.
In this paper, we first review the working principle of grating-base wavelength division (de)multiplexers(WD(D)M)for optical networks. Then key device parameters for WDM multiplexers, including insertion loss, isolation, channel passband, wavelength
Autor:
Ray Collins, George Chang, Victor Ivan Villavicencio, William W. Morey, Jie Qiao, Ray T. Chen, Feng Zhao, Jizuo Zou, James W. Horwitz
Publikováno v:
WDM and Photonic Switching Devices for Network Applications II.
We describe the design and performance of a multimode 8- channel, 200 GHz-spaced dense wavelength division demultiplexer using a high order blazed grating. The mean insertion loss of this DEMUX is 1.95 dB. Adjacent crosstalk is measured to be better
Autor:
Xuegong Deng, James W. Horwitz, William W. Morey, Feng Zhao, Ray T. Chen, George Chang, Victor Ivan Villavicencio, Ray Collins, Jizuo Zou
Publikováno v:
WDM and Photonic Switching Devices for Network Applications II.
We construct a passive grating-based wavelength-division (de)multiplexer (MUX/DMUX) for single-mode-fiber networks. The MUX/DMUX has almost identical bi-directional filtering characteristics on optical signals at wavelengths around 1550 nm. With tota
Autor:
Feng Zhao, James W. Horwitz, Jie Qiao, Victor Ivan Villavicencio, Ray T. Chen, Ray Collins, Xuegong Deng, Jizuo Zou
Publikováno v:
SPIE Proceedings.
The design, packaging, and performance of a novel 32 channel, 100GHz dense wavelength division demultiplexer (DWDM) using the 22w' diffraction order of an Echelle grating is described. A fully packaged prototype operating in the 1 .54 to 1 .57-rim sp
Autor:
Zan Shi, Lin Sun, Victor Ivan Villavicencio, Suning Tang, Dechang An, John Martin Taboada, Bing Li, Greg Morning, Nianhua Jiang, Ray T. Chen
Publikováno v:
Optoelectronic Interconnects VII; Photonics Packaging and Integration II.
This paper reports our efforts to develop an optical True- Time-Delay line module for Phased Array Antenna applications using optical polymeric waveguides. We first give a brief description of a targeted phased array antenna, having chosen a 16-eleme
Autor:
Xuegong Deng, Victor Ivan Villavicencio, Al Morgan, James W. Horwitz, Feng Zhao, Jizuo Zou, Jie Qiao, Ray T. Chen
Publikováno v:
SPIE Proceedings.
A 32-channel wavelength-division demultiplexer (WDDM) has been designed and tested. Intended for commercial use, the instrument is designed to be rugged, stable, and insensitive to temperature variations. Operating in the 1.54-to 1.57-μm spectral ra