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- Semiconductor_ring_laser abstract "Semiconductor ring lasers (SRLs) are miniature ring laser devices with potential applications in optoelectronics, photonics and all-optical circuits. The first SRLs were developed in the 1980s. Recently, they have been of interest as potential random-access memory storage devices for all-optical computers.Semiconductor ring lasers are literally ring-shaped optical waveguides with a lasing medium. They have the ability to trap light in a ring, and recirculate it continuously as long as they remain powered. The material of choice for SRLs is indium phosphide. SRLs can be square with corner reflectors, or, as is more common with the smaller designs, have a curved, "racetrack" shape. Devices are currently on the order of a 100 micrometres, but further miniaturization should be possible using existing silicon microelectronics technology.In the summer of 2010 researchers Dr. Muhammad Maqbool and Kyle Main of Ball State University and Dr. Martin Kordesch of Ohio University were able to successfully develop the first Aluminum Nitride SRL on the order of 20 micrometers in diameter. This SRL was constructed by depositing a 4 micrometer thick semi conducting Aluminum-Nitride film doped with Ti+3 ions onto a stretched fiber optic cable of 12 micrometer diameter. This SRL was shown to have considerable gain and a low threshold pump power, making it a highly efficient laser system. The light was confined only to the film and did not reflect off of the outer surface of the optical fiber. Such an arrangement is called a "Whispering Gallery Mode". Maqbool and Main plan to expand their work to include the development of nano scale SRL's on carbon nanotubes.SRLs may serve as the basis of a new form of optical random access memory. The direction of circulation of light (clockwise or counterclockwise) would indicate the polarity of the bit (0 or 1). Due in part to the bistable and highly non-linear nature of the devices, they can be fed a starting signal from either direction. The directionality is maintained as long as the device remains powered. Other potential applications include "a digital response device that reshapes optical signals that have become distorted, effectively acting as a gate." and a device for resynchronizing optical signals to eliminate timing "jitter".A European research project formed in 2006 to study potential applications of SRLs. It is known as IOLOS, (Integrated optical logic and memory using ultra-fast micro-ring bistable semiconductor laser), and will receive funding of €1.25 million over three years. Intense Photonics and Siemens are also providing a further €100,000.".
- Semiconductor_ring_laser thumbnail SRL_3D.png?width=300.
- Semiconductor_ring_laser wikiPageID "24004598".
- Semiconductor_ring_laser wikiPageRevisionID "586960313".
- Semiconductor_ring_laser hasPhotoCollection Semiconductor_ring_laser.
- Semiconductor_ring_laser subject Category:Semiconductor_lasers.
- Semiconductor_ring_laser type Artifact100021939.
- Semiconductor_ring_laser type Device103183080.
- Semiconductor_ring_laser type Instrumentality103575240.
- Semiconductor_ring_laser type Laser103643253.
- Semiconductor_ring_laser type Object100002684.
- Semiconductor_ring_laser type OpticalDevice103851341.
- Semiconductor_ring_laser type PhysicalEntity100001930.
- Semiconductor_ring_laser type SemiconductorLasers.
- Semiconductor_ring_laser type Whole100003553.
- Semiconductor_ring_laser comment "Semiconductor ring lasers (SRLs) are miniature ring laser devices with potential applications in optoelectronics, photonics and all-optical circuits. The first SRLs were developed in the 1980s. Recently, they have been of interest as potential random-access memory storage devices for all-optical computers.Semiconductor ring lasers are literally ring-shaped optical waveguides with a lasing medium.".
- Semiconductor_ring_laser label "Semiconductor ring laser".
- Semiconductor_ring_laser sameAs m.07k6v9t.
- Semiconductor_ring_laser sameAs Q7449398.
- Semiconductor_ring_laser sameAs Q7449398.
- Semiconductor_ring_laser sameAs Semiconductor_ring_laser.
- Semiconductor_ring_laser wasDerivedFrom Semiconductor_ring_laser?oldid=586960313.
- Semiconductor_ring_laser depiction SRL_3D.png.
- Semiconductor_ring_laser isPrimaryTopicOf Semiconductor_ring_laser.
