Results 21 to 30 of about 590,091 (271)
Optically Powered Remote Units for Radio-Over-Fiber Systems [PDF]
Journal of Lightwave Technology, 2008 Optically powered radio-over-fiber remote units have been designed and constructed for distributed antenna system applications using separate fibers for power and signal transmission. The feasibility of this approach has been investigated through a series of transmission measurements, based on the IEEE 802.11g wireless local area networking standard at
Wake, D. +5 more
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Photonics, 2022 Efficient simultaneous transmission of light with a power of more than 2 W at a wavelength of 976 nm and an optical carrier for transmitting a high-frequency analog signal at a wavelength of 1550 nm over a distance of 1 km over a standard single-mode ...
Andrei Varlamov +6 more
doaj +1 more source
Continuous-wave, multimilliwatt, mid-infrared source tunable across 6.4–7.5 μm based on orientation-patterned GaAs [PDF]
, 2014 We report a continuous-wave (cw) source of tunable mid-infrared radiation providing tens of milliwatt of output power in the 6460–7517 nm spectral range.
Devi, Kavita +2 more
core +2 more sources
Measurements of the intensity noise of a broadly tunable, erbium-doped fiber ring laser, relative to the standard quantum limit [PDF]
, 1992 The intensity noise of an erbium-doped fiber ring laser is measured relative to the standard quantum limit. Over a tuning range of 24 nm, the noise power is within 20 dB of the shot noise floor and varies linearly with laser output power. Oscillations in
Dawson, Jay W. +3 more
core +1 more source
Photonics, 2023 Photovoltaic multijunction power-converting III–V semiconductor devices generate electrical power from the optical energy of laser beams. They exhibit conversion efficiencies reaching values greater than 60% and 50% for the GaAs and the InP material ...
Simon Fafard, Denis Masson
doaj +1 more source
Hollow-core photonic crystal fibers for Power-over-Fiber systems
Optical Fiber Technology, 2022 Research achievements in hollow-core photonic crystal fibers technology allow ascertaining such fibers as outstanding platforms for delivering high-power laser beams. Indeed, the key property underlying the success of this family of optical fibers for high-power beam delivery is their capability of efficiently transmitting light through empty space ...
Osório, Jonas, H +6 more
openaire +3 more sources
Fiber-Optic Pyrometer with Optically Powered Switch for Temperature Measurements
Sensors, 2018 We report the experimental results on a new infrared fiber-optic pyrometer for very localized and high-speed temperature measurements ranging from 170 to 530 °C using low-noise photodetectors and high-gain transimpedance amplifiers with a single gain ...
Carmen Vázquez +7 more
doaj +1 more source
Fiber-laser-based, high-repetition-rate, picosecond ultraviolet source tunable across 329-348 nm [PDF]
, 2016 We report a compact, fiber-laser-based, high-repetition-rate picosecond source for the ultraviolet (UV), providing multi-tens of milliwatt of average power across 329-348 nm.
Devi, Kavita +2 more
core +2 more sources
Wavelength-independent coupler from fiber to an on-chip cavity, demonstrated over an 850nm span [PDF]
, 2007 A robust wide band (850 nm) fiber coupler to a whispering-gallery cavity with ultra-high quality factor is experimentally demonstrated. The device trades off ideality for broad-band, efficient input coupling.
Carmon, Tal +3 more
core +1 more source
2022 IEEE International Topical Meeting on Microwave Photonics (MWP), 2022 We present experimental results of Power-over-Fiber (PoF) impact on 5G New Radio Analog Radio over fiber transmission. Different ARoF links are implemented with approximate lengths of 6km, 10km, 14km, and 25 km, using QPSK modulations, with a bandwidth of 5MHz and with RF carriers within the range from 10 GHz to 20 GHz.
López Cardona, Juan Dayron +3 more
openaire +2 more sources