Optical modulators

Optical modulators

Devices that serve to vary some property of a light beam. The direction of the beam may be scanned as in an optical deflector, or the phase or frequency of an optical wave may be modulated. Most often, however, the intensity of the light is modulated.

Rotating or oscillating mirrors and mechanical shutters can be used at relatively low frequencies (less than 105 Hz). However, these devices have too much inertia to operate at much higher frequencies. At higher frequencies it is necessary to take advantage of the motions of the low-mass electrons and atoms in liquids or solids. These motions are controlled by modulating the applied electric fields, magnetic fields, or acoustic waves in phenomena known as the electrooptic, magnetooptic, or acoustooptic effect, respectively. See Acoustooptics, Electrooptics, Kerr effect, Magnetooptics

Optical modulators

Devices that serve to vary some property of a light beam. The direction of the beam may be scanned as in an optical deflector, or the phase or frequency of an optical wave may be modulated. Most often, however, the intensity of the light is modulated.

Rotating or oscillating mirrors and mechanical shutters can be used at relatively low frequencies (less than 105 Hz). However, these devices have too much inertia to operate at much higher frequencies. At higher frequencies it is necessary to take advantage of the motions of the low-mass electrons and atoms in liquids or solids. These motions are controlled by modulating the applied electric fields, magnetic fields, or acoustic waves in phenomena known as the electrooptic, magnetooptic, or acoustooptic effect, respectively.

References in periodicals archive ?
7, 2015 /PRNewswire/ -- The silicon photonics market report analyzes the ecosystem of the silicon photonics technology; and the key market, by product, includes silicon photonic waveguides, silicon optical modulators, silicon optical interconnects, wavelength division multiplexer filters, silicon led, silicon photo-detectors, and others.
The second research titled Silicon Photonics Market by Product (Photonic Wavelength, Optical Modulators, Optical Interconnects, WDMF, LED, and Others), Application (Telecommunication, Data Communication, and Others) and by Geography - Global Trends and Forecasts to 2020 says silicon photonics market is expected to grow to $497.
Integrated optical modulators with high modulation speed, small footprint and broadband athermal operation are highly desired for future chip-level optical interconnects.
Popovic and his colleagues created two different optical modulators -- structures that detect electrical signals and translate them into optical waves -- that can be fabricated within the same processes already used in industry to create today's state-of-the-art electronic microprocessors.
Popovic and his colleagues created two different optical modulators -structures that detect electrical signals and translate them into optical waves - that can be fabricated within the same processes already used in industry to create today's state-of-the-art electronic microprocessors.
The Company offers a high performance MMIC solutions that enable next generation wireless microwave systems up to 90GHz and drivers, TIAs and TFPS optical modulators for 40 Gbps and 100 Gbps fiber-optic telecommunications and data-communications networks.
They will describe how IBM was able to build optical modulators and photodetectors on a single silicon chip, using standard 90-nanometer semiconductor fabrication techniques — an industry first, they claim.
This collection of twenty four articles on optical network transmission technologies provides detailed information for engineers and engineering students on the technical specifications, history of development, and the state of the art in the world of optical modulators.
The focus switches to devices in chapters discussing photovoltaic devices, optoelectronic devices, miniature solid-state lasers, optical modulators, optical fibers, ion-exchanged glass waveguides, design methodology for guided-wave photonic devices, optical data storage, holographic data storage, binary optics, and electronic displays.
This new work relates to advanced optical modulator development that is synergistic with our ongoing development work on advanced optical modulators for commercial applications," said Tom Mino, Lumera's CEO.
Lithium niobate single crystal is an excellent material for various optical applications such as frequency conversion, optical switches, optical modulators and others.
The Company offers a unique broad portfolio of Drivers, TIAs and TFPS(TM) optical modulators for 40G, 100G and 400G fiber-optic telecommunications and data-communications networks, and high performance MMIC solutions that enable next generation wireless microwave systems up to 90GHz.