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Device that amplifies an optical signal
An optical amplifier is a device that amplifies an optical signal directly, without the need to first convert it to an electrical signal. An optical amplifier
Optical_amplifier
Laser light source
An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification
Optical_parametric_amplifier
Means of communication using light
international and transoceanic networks. It is a form of optical communication that relies on optical amplifiers, lasers or LEDs and wavelength-division multiplexing
Optical_networking
Device used to extend the reach of optical communications links
contrast, an optical amplifier can amplify all of the wavelengths in a single device and works for all modulation formats. An amplifier does not provide
Optical communications repeater
Optical_communications_repeater
Transmitting information over optical fiber
optical transmitters that convert electrical signals into optical signals, optical fiber cables to carry the signal, optical amplifiers, and optical receivers
Fiber-optic_communication
Number used to evaluate the performance of an amplifier
For an optical amplifier with large G it holds Fpnf ≥ 2 whereas for an electrical amplifier it holds Fe ≥ 1. Moreover, today's long-haul optical fiber
Noise_figure
Device that emits light via optical amplification
theoretical work by Charles H. Townes and Arthur Leonard Schawlow and the optical amplifier patented by Gordon Gould. A laser differs from other sources of light
Laser
Use of light to convey information
on optical networking systems using optical fiber, optical amplifiers, lasers, switches, routers, and other related technologies. Free-space optical communication
Optical_communication
Technical applications of optics
Optical amplifiers used in optical communications are erbium-doped fiber amplifiers, semiconductor optical amplifiers, Raman amplifiers and optical parametric
Photonics
waveguide amplifier (or EDWA) is a type of an optical amplifier enhanced with erbium. It is a close relative of an EDFA, erbium-doped fiber amplifier, and
Erbium-doped waveguide amplifier
Erbium-doped_waveguide_amplifier
Amplifier that uses quantum mechanical methods
quantum amplifier is an amplifier that uses quantum mechanical methods to amplify a signal; examples include the active elements of lasers and optical amplifiers
Quantum_amplifier
Communications cable across the Atlantic
cable came into use, with amplifiers. Late in the 20th century, all cables installed use optical fiber as well as optical amplifiers, because distances range
Transatlantic communications cable
Transatlantic_communications_cable
Linked hypertext system on the Internet
utilising optical amplifiers to transmit data via light. Under chief executive officer Pat Nettles, Ciena developed a dual-stage optical amplifier for dense
World_Wide_Web
Laser pulsing technique
dump the beam from the cavity. In regenerative amplification, an optical amplifier is placed inside a Q-switched cavity. Pulses of light from another
Q-switching
Light-conducting fiber
erbium-doped fiber amplifier, which reduced the cost of long-distance fiber systems by reducing or eliminating optical-electrical-optical repeaters, in 1986
Optical_fiber
Chinese optical corporation
fiber optical couplers/splitters, optical switches/attenuators, WDM/DWDM/CWDM/OADM modules, and optical amplifiers. It primarily serves telecommunications
Accelink_Technologies
Powering mechanism for lasers
stimulated emission can take place and the medium can act as a laser or an optical amplifier. The pump power must be higher than the lasing threshold of the laser
Laser_pumping
first optical telephone system in 1977 in Long Beach, California. By the early 1980s, optical networks powered by lasers, LED and optical amplifier equipment
History_of_the_Internet
Electronic device/component that increases the strength of a signal
power amplifier Lock-in amplifier Low-noise amplifier Negative feedback amplifier Optical amplifier Programmable-gain amplifier Tuned amplifier Valve
Amplifier
Gain-switching Modelocking Optical amplifier Q-switching Raman amplification Paschotta, Dr Rüdiger (2006-03-11). "Regenerative Amplifiers". RP Photonics Encyclopedia
Regenerative_amplification
Study involving matter and electromagnetic radiation
intermediates in the femtosecond timescale. Raman optical activity spectroscopy exploits Raman scattering and optical activity effects to reveal detailed information
Spectroscopy
Transparent non-crystalline solid material
suitable for manufacturing optical lenses, prisms, and optoelectronics materials. Extruded glass fibres have applications as optical fibres in communications
Glass
Arrangement of mirrors
An optical cavity, resonating cavity or optical resonator is an arrangement of mirrors or other optical elements that confines light waves similarly to
Optical_cavity
Industrial shift to information technology
the optical fiber and light amplification (the optical amplifier). In 1953, Bram van Heel demonstrated image transmission through bundles of optical fibers
Information_Age
Spacecraft communication system using lasers
Deep Space Optical Communications (DSOC) is a laser space communication system in operation that improved communications performance 10 to 100 times over
Deep Space Optical Communications
Deep_Space_Optical_Communications
Telecommunications industry term
Erbium-Doped Fiber Amplifiers (EDFAs) to extend the reach of the optical signals in fiber optics. Each transmitter and receiver can service one optical node. It
Hybrid_fiber-coaxial
Chemical element with atomic number 68 (Er)
mechanically simple laser optical amplifier for signals transmitted by fiber optics. The 1550 nm wavelength is especially important for optical communications because
Erbium
American physicist (1920–2005)
who is sometimes credited with the invention of the laser and the optical amplifier. (Credit for the invention of the laser is disputed, since Charles
Gordon_Gould
Theories, models and concepts that go back to the quantum hypothesis of Max Planck
quantum computing, superconducting magnets, light-emitting diodes, the optical amplifier and the laser, the transistor and semiconductors such as the microprocessor
Applications of quantum mechanics
Applications_of_quantum_mechanics
switching in reconfigurable optical add-drop multiplexers, setting levels for dynamic equalization of the gain of optical amplifiers, and providing system alarms
Optical performance monitoring
Optical_performance_monitoring
Glass colored with uranium oxide
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Uranium_glass
Topics referred to by the same term
type of electronic amplifier Fluidic amplifier Mechanical amplifier Optical amplifier Pneumatic amplifier Torque amplifier Amplifier (band), an English
Amplifier_(disambiguation)
Type of glass
Crown glass is a type of optical glass used in lenses and other optical components. It has a relatively low refractive index (≈1.52) and low dispersion
Crown_glass_(optics)
Scientific instruments
Optical tweezers (originally called single-beam gradient force trap) are scientific instruments that use a highly focused laser beam to hold and move
Optical_tweezers
Glass with features that make it less likely to cause injury
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Safety_glass
Fiber-optic communications technology
fiber. By using WDM and optical amplifiers, they can accommodate several generations of technology development in their optical infrastructure without
Wavelength-division multiplexing
Wavelength-division_multiplexing
Optical component allowing the transmission of light in only one direction
An optical isolator, or optical diode, is an optical component which allows the transmission of light in only one direction. It is typically used to prevent
Optical_isolator
Optical communications manufacturing company
include optical transceivers, optical engines, active optical cables, optical components, optical instrumentation, ROADM & wavelength management, optical amplifiers
Finisar
Branch of electronics involving optics
Communications Conference) Optical amplifier Optical communication Optical fiber Optical interconnect Opto-electronic oscillator Parallel optical interface Photoemission
Optoelectronics
Research of materials
features—strongly influences its mechanical, electrical, thermal, and optical behavior. In engineering practice, materials science and engineering are
Materials_science
Opaque or translucent, milk white or colored glass
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Milk_glass
Glass object created by dripping molten glass into cold water
Technology in Estonia, used a transmission polariscope to measure the optical retardation of light from a red LED as it traveled through the glass drop
Prince_Rupert's_drop
Imaging technique
Optical coherence tomography (OCT) is a high-resolution imaging technique with most of its applications in medicine and biology. OCT uses coherent near-infrared
Optical_coherence_tomography
Melting points of chemical mixtures
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Liquidus_and_solidus
Digital optical disc data storage format
The compact disc (CD) is a digital optical disc data storage format co-developed by Philips and Sony to store and play digital audio recordings. It employs
Compact_disc
Recreational shooting sport and game
squared Mode locking Multiple-prism grating laser oscillator Optical amplifier Optical cavity Optical isolator Output coupler Q-switching Lists: Articles Applications
Laser_tag
Technique for amplifying ultrashort laser pulses
compressors and stretchers. However, a typical Ti:sapphire-based chirped-pulse amplifier requires that the pulses are stretched to several hundred picoseconds
Chirped_pulse_amplification
Type of light that can be emitted by an optical amplifier
optic systems and optical coherence tomography. Examples of such sources include superluminescent diodes and doped fiber amplifiers. ASE in pulsed organic
Amplified spontaneous emission
Amplified_spontaneous_emission
Electronic amplifier, a circuit component
of a transformer-isolated amplifier Sample schematic of an optically isolated amplifier Optically isolated hybrid amplifier circuit (by Burr-Brown Corporation)
Isolation_amplifier
Optical lenses that darken on exposure to certain wavelengths of light
A photochromic lens is an optical lens that darkens on exposure to light of sufficiently high frequency, most commonly ultraviolet (UV) radiation. In
Photochromic_lens
American company
William Culver and Gordon Gould to build optical networking products utilizing fiber optic cable, optical amplifiers and lasers. Today, it develops fiber
Optelecom
Form of laser based refractive eye surgery
squared Mode locking Multiple-prism grating laser oscillator Optical amplifier Optical cavity Optical isolator Output coupler Q-switching Lists: Articles Applications
Small incision lenticule extraction
Small_incision_lenticule_extraction
Apparatus for trapping and cooling neutral atoms
In atomic, molecular, and optical physics, a magneto-optical trap (MOT) is an apparatus which uses laser cooling and a spatially varying magnetic field
Magneto-optical_trap
1957: The laser and optical amplifier are invented and named by Gordon Gould and Charles Townes. The laser and optical amplifier are foundational to powering
Timeline of historic inventions
Timeline_of_historic_inventions
Optical fiber designed to carry only a single mode of light, the transverse mode
transceivers (Xenpak). By using optical amplifiers and dispersion-compensating devices, state-of-the-art DWDM optical systems can span thousands of kilometers
Single-mode_optical_fiber
Amplifier that converts current to voltage
transimpedance amplifier (TIA) is a current to voltage converter, almost exclusively implemented with one or more operational amplifiers (opamps). The
Transimpedance_amplifier
and an optical amplifier to boost the output power. A special case is the master oscillator fiber amplifier (MOFA), where the power amplifier is a fiber
Color_engraving
Branch of physics that studies light
technology for manipulating beams of elementary charged particles. Most optical phenomena can be accounted for by using the classical electromagnetic description
Optics
Skin treatment
squared Mode locking Multiple-prism grating laser oscillator Optical amplifier Optical cavity Optical isolator Output coupler Q-switching Lists: Articles Applications
Photorejuvenation
High-strength glass, made of silica and boron trioxide
borosilicate-glass Pyrex or other borosilicate laboratory glass will not. Optically, borosilicate glasses are crown glasses with low dispersion (Abbe numbers
Borosilicate_glass
Physical property of allowing light
molecular structure of most liquids are mostly responsible for excellent optical transmission. Materials that do not transmit light are called opaque. Many
Transparency_and_translucency
Electronic amplifier that converts weak signal into strong signal
A preamplifier, also known as a preamp, is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant
Preamplifier
Electronic amplifier that varies its gain depending on a control input
similar to the circuits used in optical audio compressors. Another type of circuit uses operational transconductance amplifiers. In audio applications, logarithmic
Variable-gain_amplifier
Technology used to provide broadband to the end consumer via fiber
and a number of optical network units (ONUs) or optical network terminals (ONTs), which are near end users. There may be amplifiers between the OLT and
Passive_optical_network
Type of plastic reinforced by glass fiber
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Fiberglass
Laser in which electricity is discharged through gas
squared Mode locking Multiple-prism grating laser oscillator Optical amplifier Optical cavity Optical isolator Output coupler Q-switching Lists: Articles Applications
Gas_laser
British professor (born 1944)
team at Southampton that invented the erbium-doped fibre amplifier, a type of optical amplifier. Although the idea was conceived and performed by Robert
David_N._Payne
Measure of laser beam quality
multiple positions within the beam after focusing it with a lens of high optical quality and known focal length. To properly obtain M2, the following steps
M_squared
Relay station
repeater is an amplifier in a telephone line, an optical repeater is an optoelectronic circuit that amplifies the light beam in an optical fiber cable;
Repeater
aperture off-axis optical system optical aberration optical amplifier optical axis optical axis gratings optical bench optical coating optical coherence tomography
Index_of_optics_articles
Inelastic optical scattering phenomenon
expensive process of dredging up the cable and replacing all the amplifiers. Today, Optical fiber is most often used as the nonlinear medium for stimulated
Raman_amplification
Optical fiber instrument
separation, optical performance monitoring, field tunable optical noise filtering and optical amplifier noise suppression, etc. Optical multiplexers
Fiber-optic_filter
Laser cooling technique
One use for Doppler cooling is the optical molasses technique. This process itself forms a part of the magneto-optical trap but it can be used independently
Doppler_cooling
Type of safety glass processed to increase its strength
pattern resulting from tempering can be observed by viewing through an optical polarizer, such as a pair of polarizing sunglasses. Tempered glass is used
Tempered_glass
Brand of dish and other cookware pieces
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
CorningWare
Refractive eye surgery procedure
squared Mode locking Multiple-prism grating laser oscillator Optical amplifier Optical cavity Optical isolator Output coupler Q-switching Lists: Articles Applications
Photorefractive_keratectomy
Type of optical glass
Flint glass is optical glass that has relatively high refractive index and low Abbe number (high dispersion). Flint glasses are arbitrarily defined as
Flint_glass
Optical imaging technique
Confocal microscopy is an optical imaging technique for increasing optical resolution and contrast of a micrograph by means of using a spatial pinhole
Confocal_microscopy
Welding technique
higher than solid-state lasers, reaching 25 kW. In fiber lasers, a doped optical fiber serves as the gain medium in which laser light is amplified. Such
Laser_beam_welding
Type of ultraviolet laser important in chip manufacturing and eye surgery
due to the HCl gas. One major problem encountered was degradation of the optical windows due to carbon build-up on the surface of the CaF window. This was
Excimer_laser
Monochrome light beam whose amplitude envelope is a Gaussian function
Wolf, Emil (1995). Optical Coherence and Quantum Optics. Cambridge: Cambridge University Press. ISBN 0-521-41711-2. Chapter 5, "Optical Beams," pp. 267.
Gaussian_beam
links that use optical amplifiers to compensate for attenuation over long distances. Other forms of optical links include free-space optical telecommunication
Optical_link
U.S. fiber laser company
develops and manufactures fiber amplifiers, diode lasers and several complementary products used with its lasers, such as optical delivery cables, fiber couplers
IPG_Photonics
Lowering the temperature of a liquid below its freezing point without it becoming a solid
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Supercooling
in optical power. This is the basic principle of all lasers. Quantitatively, gain is a measure of the ability of a laser medium to increase optical power
Gain_(laser)
Digital optical disc data storage format
DVD (Digital Video Disc or Digital Versatile Disc) is a digital optical disc data storage format. It was invented and developed in 1995 and first released
DVD
commercially deploy reliable 980 nm laser pumps, needed in low noise optical amplifiers employed in dense wavelength division multiplexing (DWDM) telecommunications
David Welch (optical engineer)
David_Welch_(optical_engineer)
Spectroscopic technique
The photons that were scattered by the sample were collected through an optical flat at the end of the tube. To maximize the sensitivity, the sample was
Raman_spectroscopy
Range of usable frequencies
transmitted by some element, e.g. an optical fiber the gain bandwidth of an optical amplifier the width of the range of some other phenomenon, e.g., a reflection
Bandwidth_(signal_processing)
Laser which uses a solid gain medium
and SWCNT. Graphene has also been used. These materials use a nonlinear optical behavior called saturable absorption to make a laser create short pulses
Solid-state_laser
are also used in very high power laser systems, which use chains of optical amplifiers to produce an intense beam. Tophat beams are named for their resemblance
Tophat_beam
Type of glass
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Soda–lime_glass
Revolving disk with cut-outs to modulate light
intensity of a light beam, and a lock-in amplifier is used to improve the signal-to-noise ratio. To be effective, an optical chopper should have a stable rotating
Optical_chopper
Amplifier consisting of two or more simple amplifiers connected in series
A multistage amplifier is an electronic amplifier consisting of two or more single-stage amplifiers connected together. In this context, a single stage
Multistage_amplifier
Chemical compound
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Sodium_hexametaphosphate
Input power level at which a laser generates light primarily by stimulated emission
the optical gain of the laser medium is exactly balanced by the sum of all the losses experienced by light in one round trip of the laser's optical cavity
Lasing_threshold
Variety of glass in which lead replaces the calcium content
index and lowers its working temperature and viscosity. The attractive optical properties of lead glass result from the high content of the heavy metal
Lead_glass
Fused coating on ceramic objects
Achromat Dispersion Gradient-index optics Hydrogen darkening Optical amplifier Optical fiber Optical lens design Photochromic lens Photosensitive glass Refraction
Ceramic_glaze
Type of laser
the high energy density into consideration. In a multi-pass amplifier, there are no optical switches. Instead, mirrors guide the beam a fixed number of
Titanium-sapphire_laser
Infrared laser
lamps ends up amplifying the beam on most Nd:glass lasers. After each amplifier module there was a spatial filter, which was used to smooth the beam by
Shiva_laser
travel, tourism, insurance
OPTICAL AMPLIFIER
OPTICAL AMPLIFIER
OPTICAL AMPLIFIER
OPTICAL AMPLIFIER
OPTICAL AMPLIFIER
OPTICAL AMPLIFIER
OPTICAL AMPLIFIER
OPTICAL AMPLIFIER
a.
Of or pertaining to a vortex or vortexes; resembling a vortex in form or motion; whirling; as, a vortical motion.
n.
An optical toy similar to the phenakistoscope. See Phenakistoscope.
a.
Topical.
a.
One skilled in optics.
a.
One who deals in optical glasses and instruments.
n.
A reflecting optical glass or instrument; a mirror.
n.
The space covered by an optical instrument at one view.
n.
Of or pertaining to the science of vision; optical.
n.
An optical glass; a telescope.
a.
Of or pertaining to vision or sight.
a.
Alt. of Optical
n.
An optical glass that is convex on both sides.
n.
Of or pertaining to a place; limited; logical application; as, a topical remedy; a topical claim or privilege.
a.
Belonging to, or consisting of, bark or rind; resembling bark or rind; external; outer; superficial; as, the cortical substance of the kidney.
a.
Relating to the science of optics; as, optical works.
a.
Of or pertaining to the eye; ocular; as, the optic nerves (the first pair of cranial nerves) which are distributed to the retina. See Illust. of Brain, and Eye.
a.
Expressed in metrical form; exhibiting the imaginative or the rhythmical quality of poetry; as, a poetical composition; poetical prose.
a.
Involving an option; depending on the exercise of an option; left to one's discretion or choice; not compulsory; as, optional studies; it is optional with you to go or stay.
adv.
By optics or sight; with reference to optics.
n.
An instrument for showing the optical effects of color.
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