Results 151 to 160 of about 148,804 (200)
Some of the next articles are maybe not open access.
SPIE Proceedings, 1985
An interest in optical communications was created in 1960 with the discovery of the laser1. The initial activity concentrated on experiments using atmospheric optical channels, since early optical fibers had extremely large losses of more than 1000 dB/km which made them appear impractical.
openaire +1 more source
An interest in optical communications was created in 1960 with the discovery of the laser1. The initial activity concentrated on experiments using atmospheric optical channels, since early optical fibers had extremely large losses of more than 1000 dB/km which made them appear impractical.
openaire +1 more source
Optical Fiber Communication, 1984
Analog modulation appears attractive for fiber-optic transmission and distribution of single-channel and multichannel broadband and TV signals. While use of digital techniques is expected to grow beyond long-distance links, analog fiber systems are simple and compatible with existing distribution methods.
openaire +1 more source
Analog modulation appears attractive for fiber-optic transmission and distribution of single-channel and multichannel broadband and TV signals. While use of digital techniques is expected to grow beyond long-distance links, analog fiber systems are simple and compatible with existing distribution methods.
openaire +1 more source
Ground-based and Airborne Instrumentation for Astronomy VII, 2018
The Gemini High-Resolution Optical SpecTrograph (GHOST) is the newest instrument being developed for the Gemini telescopes, in a collaboration between the Australian Astronomical Observatory (AAO), the Herzberg Institute for Astrophysics, National Research Council (HIA-NRC) in Canada, and the Australian National University.
Michael Ireland +9 more
openaire +1 more source
The Gemini High-Resolution Optical SpecTrograph (GHOST) is the newest instrument being developed for the Gemini telescopes, in a collaboration between the Australian Astronomical Observatory (AAO), the Herzberg Institute for Astrophysics, National Research Council (HIA-NRC) in Canada, and the Australian National University.
Michael Ireland +9 more
openaire +1 more source
Optical fiber connection system including optical fiber alignment device
2019A self-centering structure (300) for aligning optical fibers (308) desired to be optically coupled together is disclosed. The self-centering structure (300) including a body (310) having a first end (312) and a second end (314). The first end (312) defines a first opening (303) and the second end (314) defines a second opening (304). The self-centering
Watte, Jan +7 more
openaire +1 more source
Optical Fiber Communication Systems
2010Extremely high bandwidth and frequency, existence of two polarization modes and usage of optical amplifiers are key features in long-haul digital optical fiber communication. Considering this, systems with various modulation formats, with direct and coherent detection are described.
openaire +1 more source
Fiber Optic Transmission Systems
2004Compares multimode versus single mode optical fiber, for both attenuation and dispersion characteristics Describes optical sources, including light emitting diodes (LED) and laser diodes Describes optical detectors, including PIN photodiodes and avalanche photodiodes Explains wavelength-division multiplexing (WDM) as a way to expand the ...
openaire +1 more source