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Semiconductor laser
laser diode (LD, also injection laser diode or ILD or semiconductor laser or diode laser) is a semiconductor device similar to a light-emitting diode
Laser_diode
Laser which emits light with blue wavelengths
visible spectrum as blue or violet. Blue lasers can be produced by: direct, inorganic diode semiconductor lasers based on quantum wells of gallium(III)
Blue_laser
Two-terminal electronic component
A diode is a two-terminal electronic component that conducts electric current primarily in one direction (asymmetric conductance). It has low (ideally
Diode
Process of hair removal by exposure to laser pulses
effects with diode laser-based treatment. Hair reduction after six months was reported as 68.75% for alexandrite lasers, 71.71% for diode lasers, and 66.96%
Laser_hair_removal
Handheld device that emits a laser beam
A laser pointer or laser pen is a (typically battery-powered) handheld device that uses a laser diode to emit a narrow low-power visible laser beam (i
Laser_pointer
Semiconductor light source
A light-emitting diode (LED) is an electronic component that uses a semiconductor to emit light when current flows through it. Electrons in the semiconductor
Light-emitting_diode
Device that emits light via optical amplification
Commercial laser diodes emit at wavelengths from 375 nm to 3500 nm. Low to medium power laser diodes are used in laser pointers, laser printers and
Laser
Type of laser
A diode-pumped solid-state laser (DPSSL) is a solid-state laser made by pumping a solid gain medium, for example, a ruby or a neodymium-doped YAG crystal
Diode-pumped solid-state laser
Diode-pumped_solid-state_laser
Type of semiconductor laser diode
The vertical-cavity surface-emitting laser (VCSEL /ˈvɪksəl/) is a type of semiconductor laser diode with laser beam emission perpendicular from the top
Vertical-cavity surface-emitting laser
Vertical-cavity_surface-emitting_laser
"Comparison of diode-side-pumped triangular Nd:YAG and Nd:YAP laser" (PDF). In Hoffman, Hanna J; Shori, Ramesh K (eds.). Solid State Lasers XIV: Technology
List_of_laser_types
Device that plays LaserDisc discs
first consumer player with a solid-state laser diode. This model, the Pioneer LD-700, was also the first LaserDisc player with a front-loading disc bay
LaserDisc_player
Laser which uses a solid gain medium
solid-state laser is a laser that uses a gain medium that is a solid, usually a crystal or glass. Semiconductor-based lasers such as laser diodes are generally
Solid-state_laser
Ionization technique
Laser diode thermal desorption (LDTD) is an ionization technique that is coupled to mass spectrometry to analyze samples with atmospheric pressure chemical
Laser diode thermal desorption
Laser_diode_thermal_desorption
Marvel Comics fictional character
projection units, and later implants miniature laser diodes into his skin which absorb energy. With the diode implants, Parks is capable of energy projection
Living_Laser
Optical analog video disc format
first LaserDisc player to load from the front and not the top. One year earlier, Hitachi introduced an expensive industrial player with a laser diode, but
LaserDisc
Laser with a variable wavelength
transition-metal solid-state lasers, semiconductor crystal and diode lasers, and free-electron lasers. Tunable lasers find applications in spectroscopy
Tunable_laser
Semiconductor diode
Schottky diode (named after the German physicist Walter H. Schottky), also known as Schottky barrier diode or hot-carrier diode, is a semiconductor diode formed
Schottky_diode
Diode that emits light from an organic compound
organic light-emitting diode (OLED), also known as organic electroluminescent (organic EL) diode, is a type of light-emitting diode (LED) in which the emissive
OLED
Medical use of laser to cut tissues
tissue surgery include erbium, diode, and CO2. Erbium lasers are excellent cutters, but provide minimal hemostasis. Diode lasers (hot tip) provide excellent
Laser_surgery
Digital optical disc data storage format
the second optical disc format to reach the market, following the larger LaserDisc (LD). In later years, the technology was adapted for computer data storage
Compact_disc
Optoelectronics component
superluminescent diode (SLED or SLD) is an edge-emitting semiconductor light source based on superluminescence. It combines the high power and brightness of laser diodes
Superluminescent_diode
Energy range in a solid where no electron states exist
exploited in the design of heterojunction bipolar transistors (HBTs), laser diodes and solar cells. The distinction between semiconductors and insulators
Band_gap
Electronic component that exploits the electronic properties of semiconductor materials
DIAC Diode (rectifier diode) Gunn diode IMPATT diode Laser diode Light-emitting diode (LED) Photocell Phototransistor PIN diode Schottky diode Solar
Semiconductor_device
Electronic component
A transient-voltage-suppression (TVS) diode, also transil, transorb or thyrector, is an electronic component used to protect electronics from voltage
Transient-voltage-suppression diode
Transient-voltage-suppression_diode
The laser diode rate equations model the electrical and optical performance of a laser diode. This system of ordinary differential equations relates the
Laser_diode_rate_equations
Two-terminal electronic component that limits current to a specified maximum
constant-current diode is an electronic device that limits current to a maximal specified value for the device. It is known as a current-limiting diode (CLD) or
Constant-current_diode
Type of laser diode
A distributed-feedback laser (DFB) is a type of laser diode, quantum-cascade laser or optical-fiber laser where the active region of the device contains
Distributed-feedback_laser
Tunneling diode
A resonant-tunneling diode (RTD) is a diode with a resonant-tunneling structure in which electrons can tunnel through some resonant states at certain energy
Resonant-tunneling_diode
American electronics engineer (1928–2022)
semiconductor laser diode that emitted visible light. This device was the forerunner of the first generation of commercial light-emitting diodes (LEDs). He
Nick_Holonyak
Semiconductor diode producing short impulses
electronics, a step recovery diode (SRD, snap-off diode or charge-storage diode or memory varactor) is a semiconductor junction diode with the ability to generate
Step_recovery_diode
Device that controls current between electrodes
the electric field in the tube. The first, and simplest, vacuum tube, the diode or Fleming valve, was invented in 1904 by John Ambrose Fleming. It contains
Vacuum_tube
Microchip manipulating light instead of electricity
until 1958 for them to become commercially available. When the laser and laser diode were invented in the 1960s, the term "photonics" fell into more
Photonic_integrated_circuit
Type of gas laser
Pioneer continued to use laser diodes in all LaserDisc players afterwards until LaserDisc was discontinued in 2009. List of laser types Argon gas NIST Atomic
Helium–neon_laser
Laser diode in which the active region is so narrow that quantum confinement occurs
quantum-well laser is a laser diode in which the active region of the device is so narrow that quantum confinement occurs. Laser diodes are formed in
Quantum_well_laser
module LLM01 laser light module combines visible and infrared laser diodes. In the late 1990s, green diode pumped solid state laser (DPSS) laser sights (532 nm)
List_of_laser_applications
Type of diode
A varicap diode, varactor diode, variable capacitance diode, variable reactance diode or tuning diode is a type of diode designed to exploit the voltage-dependent
Varicap
Optical diode invented by Jun-Ichi Nishizawa
A PIN diode is a diode with a wide, undoped intrinsic semiconductor region between a p-type semiconductor and an n-type semiconductor region. The p-type
PIN_diode
Converts light into current
A photodiode is a semiconductor diode sensitive to photon radiation, such as visible light, infrared or ultraviolet radiation, X-rays and gamma rays.
Photodiode
Interferometric technique
explored and applications based on the retro-injection effect in commercial laser diodes appeared in the scientific literature. In this type of interferometric
Self-mixing_interferometry
Diode that allows current to flow in the reverse direction at a specific voltage
A Zener diode is a type of diode designed to exploit the Zener effect to affect electric current to flow against the normal direction from anode to cathode
Zener_diode
Solid-state electrically operated switch also used as an amplifier
barrier diode, commonly known as a Schottky diode. This is included in the table because some silicon power IGFETs have a parasitic reverse Schottky diode formed
Transistor
Type of gunsight
hologram of the reticle is built into the window and is illuminated by a laser diode. The first-generation holographic sight was introduced by EOTech—then
Holographic_weapon_sight
Digital optical disc format
format was limited by the wavelength of the laser diodes used. Following protracted development, blue laser diodes operating at 405 nanometers became available
Blu-ray
Pictogram used to represent various electrical and electronic devices or functions
zener and TVS diode symbol too, such as "5.1V". Diode (rectifier) Schottky diode Zener diode TVS (Transient Voltage Suppression) diode. Top is unidirectional
Electronic_symbol
DC-to-DC power converter with an output voltage greater than its input voltage
switched-mode power supply (SMPS) containing at least two semiconductors, a diode and a transistor, and at least one energy storage element: a capacitor,
Boost_converter
Form of transistor that emits light
the inventor of the first practical light-emitting diode (LED) and the first semiconductor laser to operate in the visible spectrum, made the world's
Light-emitting_transistor
Additive primary color visible between cyan and yellow
The most common green lasers use diode pumped solid state (DPSS) technology to create the green light. An infrared laser diode at 808 nm is used to pump
Green
First successful type of transistor, developed in 1947
a plastic triangle—a configuration which is essentially a point-contact diode. He then carefully sliced through the gold at the tip of the triangle. This
Point-contact_transistor
Laser detuning Laser diffraction analysis Laser diode Laser diode rate equations Laser diode thermal desorption Laser Doppler velocimetry Laser Doppler vibrometer
List_of_laser_articles
German integrated photonics group
high-power diode lasers.[citation needed] The company provides turnkey diode laser systems and diode-pumped solid-state and fiber lasers for both pulsed
Jenoptik
Crystal used as a lasing medium for solid-state lasers
flashtube or laser diodes. These are one of the most common types of laser, and are used for many different applications. Nd:YAG lasers typically emit light
Nd:YAG_laser
Discrete device in an electronic system
capacitance varies according to the DC voltage applied. Laser diode Light-emitting diode (LED) – a diode that emits light Photodiode – passes current in proportion
Electronic_component
Protocols for safe use, design and implementation of laser technology
- Safe Use of Lasers". The Laser Institute. August 11, 2017. "- Safe Use of Optical Fiber Communication Systems Utilizing Laser Diode and LED Sources"
Laser_safety
Laser fundamental design principles
laser uses an electrical discharge in the helium-neon gas mixture, a Nd:YAG laser uses either light focused from a xenon flash lamp or diode lasers,
Laser_construction
Diode that works using quantum tunneling
A tunnel diode or Esaki diode is a type of semiconductor diode that has effectively "negative resistance" due to the quantum mechanical effect called
Tunnel_diode
Application of laser in medical field
tissue. diode lasers dye lasers excimer lasers fiber lasers gas lasers free electron lasers semiconductor diode lasers Examples of procedures, practices, devices
Laser_medicine
Type of solid state switch
diodes have a significantly higher performance than the body diode of a MOSFET. The reverse bias rating of the N-drift region to collector P+ diode is
Insulated-gate bipolar transistor
Insulated-gate_bipolar_transistor
Engraving objects using lasers
machines use the Diode Pumped Solid State or DPSS laser process. The laser diode, the primary component which excites a pulsed solid state laser, can easily
Laser_engraving
Light dependent resistor
light source may be a small incandescent or neon lamp, or light-emitting diode. Popularity has waned, but they are still used in audio applications, such
Photoresistor
Optical instrument
states available for electrons to occupy. Conventional semiconductor laser diodes generate light by a single photon being emitted when a high energy electron
Quantum-cascade_laser
reflector laser (DBR) is a type of single frequency laser diode. Other practical types of single frequency laser diodes include DFB lasers and external
Distributed Bragg reflector laser
Distributed_Bragg_reflector_laser
Metal–insulator–metal (MIM) diode is a type of nonlinear device very similar to a semiconductor diode and capable of very fast operation. Depending on
Metal–insulator–metal_diode
Type of transistor
incorporate a body diode. If the characteristics of the body diode are not taken into consideration, the FET can experience slow body diode behavior, where
Field-effect_transistor
Virtual device projected onto a surface
image are a diffractive optical element, red laser diode, CMOS sensor chip and an infrared (IR) laser diode. A template produced by a specially designed
Projection_keyboard
Practical physics application
Light-emitting diodes (LEDs) produce light (or infrared radiation) by the recombination of electrons and electron holes in a semiconductor, a process called
Light-emitting_diode_physics
Type of high-power semiconductor diode
An IMPATT diode (impact ionization avalanche transit-time diode) is a form of high-power semiconductor diode used in high-frequency microwave electronics
IMPATT_diode
Optical imaging technique
Karl Preikschat, with his son Ekhard Preikschat, invented the scanning laser diode microscope for particle-size analysis. and co-founded Lasentec to commercialize
Confocal_microscopy
Chess-like abstract strategy board game
low-powered laser diode after each move. Most of the pieces are mirrored on one or more sides, allowing the players to alter the path of the laser through
Khet_(game)
Highly sensitive semiconductor electronic device
highly sensitive type of photodiode, which in general are semiconductor diodes that convert light into electricity via the photovoltaic effect. APDs use
Avalanche_photodiode
Treatment using irradiation with light of low power intensity
reaction-based medical treatment that applies low-level (low-power) lasers or light-emitting diodes (LEDs) to the surface of the body without damaging tissue.
Low-level_laser_therapy
Type of diode
In electronics, an avalanche diode is a diode (made from silicon or other semiconductor) that is designed to experience avalanche breakdown at a specified
Avalanche_diode
Type of field-effect transistor
connection. Some symbols will also explicitly show the MOSFET's intrinsic body diode along an outer (and sometimes dotted, as may be done for parasitic elements)
MOSFET
Electronic component
operate until the fuse is replaced. Positive temperature coefficient Zener diode U.S. Patent 2258958.: "Conductive device", filed 13 Jul 1939, retrieved
Resettable_fuse
Form of diode
A Gunn diode, also known as a transferred electron device (TED), is a form of diode, a two-terminal semiconductor electronic component, with negative differential
Gunn_diode
Type of electrical current converter
using a diode and a switch. A non-isolated Ćuk converter comprises two inductors, two capacitors, a switch (usually a transistor), and a diode. Its schematic
Ćuk_converter
Device for producing coherent EM waves in the sub-visible spectrum
the precursor to the laser, inspiring theoretical work by Townes and Arthur Leonard Schawlow that led to the invention of the laser in 1960 by Theodore
Maser
Electric light that produces light using LEDs
LED light is an electric light that produces light using light-emitting diodes (LEDs). LED lamps are significantly more energy-efficient than equivalent
LED_lamp
Semiconductor device with variable capacitance
a variable capacitance with voltage bias, similar to a varactor diode. Unlike a diode, it has an anti-symmetric current-voltage relationship and a symmetric
Heterostructure barrier varactor
Heterostructure_barrier_varactor
Recording to reproduce a three-dimensional light field
Early holography required high-power and expensive lasers. Currently, mass-produced low-cost laser diodes, such as those found on DVD recorders and used in
Holography
Devices and processes that produce light
Gas laser – Laser in which electricity is discharged through gas Ion laser – Type of gas laser Laser diode – Semiconductor laser Metal-vapor laser Quantum
List_of_light_sources
Electronic component
non-ohmic current–voltage characteristic that is similar to that of a diode. Unlike a diode however, it has the same characteristic for both directions of traversing
Varistor
Electronic component
the two sides of the capacitor. This effect is intentionally exploited in diode-like devices known as varicaps. If a capacitor is driven with a time-varying
Capacitor
Type of resistor whose resistance varies with temperature
point sensing to achieve high accuracy for specific points, such as laser diode die, etc. For measurement of temperature profile inside the sealed cavity
Thermistor
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
Four-layer solid-state current-controlling device
in the tens of volts. ASCRs are used where either a reverse conducting diode is applied in parallel (for example, in voltage-source inverters) or where
Silicon_controlled_rectifier
Spectroscopy with lasers with very short pulses
many physical & chemical studies. A fiber laser is usually generated first from a laser diode. The laser diode then couples the light into a fiber where
Ultrafast_laser_spectroscopy
Laser in which electricity is discharged through gas
replaced by laser diodes. Nitrogen lasers and excimer laser are used in pulsed dye laser pumping. Ion lasers, mostly argon, are used in CW dye laser pumping
Gas_laser
Type of television
is a diode as the active medium. These lasers combine high overall efficiency with good beam quality. The light from the high power IR-laser diodes is converted
Laser_TV
Chinese-American optical engineer
optical engineering, laser parameter measurement, mathematical modeling, laser diode application, laser diode physics, and laser beam control. Sun has
Haiyin_Sun
Type of DC-to-DC converter
circuit (if, for example, the supply is a battery) because the supply and diode polarity can simply be reversed. When they can be reversed, the switch can
Buck–boost_converter
MOSFET that can handle significant power levels
creates a diode between the drain (cathode) and the source (anode) of the MOSFET, making it able to block current in only one direction. Body diodes may be
Power_MOSFET
Device that projects video onto a surface
a combination of LEDs and 445 nm laser diodes as the light source, while the image is processed with DLP. Laser diode projectors, developed by Microvision
Video_projector
Directed-energy weapon using lasers
A laser weapon is a type of directed-energy weapon (DEW) that uses lasers to inflict damage. Laser weapons are of two types: low-power laser dazzlers that
Laser_weapon
Interband cascade lasers (ICLs) are a type of laser diode that can produce coherent radiation over a large part of the mid-infrared region of the electromagnetic
Interband_cascade_laser
German quantum physicist (1912-1981)
semiconductors, and paved the way for microwave semiconductor elements and laser diodes. Starting in 1931, Welker studied at the Ludwig-Maximilians-Universität
Heinrich_Welker
Dental procedure
scalpel surgery, soft-tissue dental lasers, such as laser diode, Nd:YAG laser, Er:YAG laser, Er,Cr:YSGG laser, and CO2 lasers, can perform this procedure, offering
Laser_gingivectomy
Capacitor whose capacitance can be changed
layer of a reverse-biased semiconductor diode varies with the DC voltage applied across the diode. Any diode exhibits this effect (including p/n junctions
Variable_capacitor
Connector used to connect to mains power
Varicap IMPATT diode Metal–insulator–metal diode (MIM diode) Transient-voltage-suppression diode (TVS diode) Laser diode (LD) Light-emitting diode (LED) Organic
AC_power_plugs_and_sockets
System designed to maintain a constant voltage
forward-biased diode (or series of diodes), forming a voltage divider of sorts. Due to the logarithmic shape of diode V-I curves, the voltage across the diode changes
Voltage_regulator
Electrical device that converts AC to DC
regulation issues. Diode voltage multipliers, frequently used as a trailing boost stage or primary high voltage (HV) source, are used in HV laser power supplies
Rectifier
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