Results 41 to 50 of about 395 (125)

Reconfigurable RF-Waveform Generation Based on Incoherent-Filter Design [PDF]

open access: yes, 2008
Radio-frequency (RF) waveform generators are key devices for a variety of applications, including radar, ultra-wideband communications, and electronic test measurements.
Andrés, Pedro   +3 more
core   +2 more sources

Optical Phase-Modulation Techniques [PDF]

open access: yes, 2019
Optical phase-modulation technique is a very powerful tool used in a wide variety of high performance photonic systems. Fiber-optic sensors and gyroscopes, integrated-optics sensors, or high-performance photonic integrated circuits are some examples of ...
Menéndez, Ramón José Pérez
core   +1 more source

Programmable photonics : an opportunity for an accessible large-volume PIC ecosystem [PDF]

open access: yes, 2020
We look at the opportunities presented by the new concepts of generic programmable photonic integrated circuits (PIC) to deploy photonics on a larger scale.
Bogaerts, Wim
core   +1 more source

Spectrally-Pure Optical Serrodyne Modulation for Continuously-Tunable Laser Offset Locking

open access: yesOptics Express
The comb-like spectrum added to laser light by an electro-optic modulator (EOM) finds use in a wide range of applications, including coherent optical communication, atomic spectroscopy, and laser frequency and phase stabilization. In some cases a sideband-free optical frequency shift is preferred, such as in laser offset locking using an optical cavity,
Hildebrand, Roame A.   +4 more
openaire   +2 more sources

Serrodyne frequency converter re-entrant amplifier system Patent [PDF]

open access: yes, 1966
Serrodyne traveling wave tube reentrant amplifier for synchronous communication satellites operating at microwave ...
Allen, W. K.
core   +1 more source

Precisely spaced multiwavelength light source using pulsed serrodyne modulation in amplified circulating loop

open access: yesElectronics Letters, 2003
A pulsed serrodyne modulation achieves a large frequency shift of 60 GHz. The successive frequency shifts by this modulation in an optical ring circuit having the loop gain of unity generates more than 100 carriers with precise 12.5 GHz spacing.
H. Sanjoh, I. Tomita, Y. Yoshikuni
openaire   +1 more source

Experimental comparison of autodyne and heterodyne laser interferometry using a Nd:YVO4 microchip laser

open access: yes, 2011
Using a Nd:YVO4 microchip laser with a relaxation frequency in the megahertz range, we have experimentally compared a heterodyne interferometer based on a Michelson configuration with an autodyne interferometer based on the laser optical feedback imaging
Blaize   +27 more
core   +2 more sources

Wavelength Shift Detection of Fiber Bragg Grating by Dynamic Strain using Serrodyne Modulation

open access: yesIEEJ Transactions on Sensors and Micromachines, 2007
To evaluate the stability of man-made structures such as bridges, high-rise buildings and dams and of regions prone to dangers such as bedrock collapse, we are planning the construction of a health monitoring system using a fiber Bragg grating (FBG).
Yukitaka Shinoda   +2 more
openaire   +2 more sources

Traveling wave tube development for a serrodyne re-entrant amplifier [PDF]

open access: yes
Traveling wave tube development for serrodyne re-entrant ...
Allen, W. K.   +2 more
core   +1 more source

Simulation of optoelectronic oscillator injection locking, pulling and spiking phenomena

open access: yes, 2023
Complex envelope and reduced phase simulation models describing the dynamical behavior of an optoelectronic oscillator (OEO) under injection by an external source are described.
Banerjee, A., Hall, T. J.
core  

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