Results 21 to 30 of about 640,184 (358)

Integrating a QPSK Quantum Key Distribution Link [PDF]

open access: yes, 2006
We present the integration of the optical and electronic subsystems of a BB84-QKD fiber link. A highspeed FPGA MODEM generates the random QPSK sequences for a fiber-optic delayed self-homodyne scheme using APD detectors.Comment: 2 pages, 4 figures ...
Agnolini, S.   +6 more
core   +2 more sources

Performance of electronic dispersion compensator for 10Gb/s multimode fiber links [PDF]

open access: yes, 2014
In high-speed optical links, electronic compensation circuits can be utilized to greatly improve the data transmission performance limited by fiber dispersion.
Bauwelinck, Johan   +8 more
core   +1 more source

Nanomechanical optical fiber

open access: yesOptics Express, 2012
Optical fibers are an excellent transmission medium for light and underpin the infrastructure of the Internet, but generally after fabrication their optical properties cannot be easily modified. Here, we explore the concept of nanomechanical optical fibers where, in addition to the fiber transmission capability, the internal core structure of the fiber
Lian, Zhenggang   +10 more
openaire   +4 more sources

2-D DOA tracking using variational sparse Bayesian learning embedded with Kalman filter

open access: yesEURASIP Journal on Advances in Signal Processing, 2018
In this paper, we consider the 2-D direction-of-arrival (DOA) tracking problem. The signals are captured by a uniform spherical array and therefore can be analyzed in the spherical harmonics domain.
Qinghua Huang   +3 more
doaj   +1 more source

Generation of Arbitrary Frequency Chirps with a Fiber-Based Phase Modulator and Self-Injection-Locked Diode Laser [PDF]

open access: yes, 2006
We present a novel technique for producing pulses of laser light whose frequency is arbitrarily chirped. The output from a diode laser is sent through a fiber-optical delay line containing a fiber-based electro-optical phase modulator. Upon emerging from
Bakos   +26 more
core   +2 more sources

Fiber Optic Calorimetry [PDF]

open access: yes, 1997
A twin-bridge calorimeter using optical fiber as the sensor element was constructed and tested. This system demonstrates the principle and capability of using optical fibers for heat-flow measurements of special nuclear material. This calorimeter uses piezoelectric-generated phase-carrier modulation with subsequent electronic signal processes to allow ...
Rudy, C.   +4 more
openaire   +4 more sources

Study on the Design and Performance of a Glove Based on the FBG Array for Hand Posture Sensing

open access: yesSensors, 2023
This study introduces a new wearable fiber-optic sensor glove. The glove utilizes a flexible material, polydimethylsiloxane (PDMS), and a silicone tube to encapsulate fiber Bragg gratings (FBGs).
Hongcheng Rao   +8 more
doaj   +1 more source

Linear and nonlinear optical properties of carbon nanotube-coated single-mode optical fiber gratings [PDF]

open access: yes, 2011
This paper was published in OPTICS LETTERS and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.36.002104.
Benoit Simard   +17 more
core   +2 more sources

LD-Pumped Random Fiber Laser Based on Erbium-Ytterbium Co-Doped Fiber

open access: yesPhotonic Sensors, 2019
In this paper, a cladding-pumped erbium-ytterbium co-doped random fiber laser (EYRFL) operating at 1550 nm with high power laser diode (LD) is proposed and experimentally demonstrated for the first time.
Qingyang Meng   +4 more
doaj   +1 more source

A Large Area Fiber Optic Gyroscope on multiplexed fiber network [PDF]

open access: yes, 2013
We describe a fiber optical gyroscope based on the Sagnac effect realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km2 and coexists with Internet data traffic.
A. Mura   +18 more
core   +3 more sources

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