An RGB laser is that beam source that emits red, green and blue lights in form of laser beams either as a separate beam for each color or a combination of all the three colors in one beam. Through the process of additive color mixing which is achieved through combination of these lights, a number of many other lights can be obtained.
RGB laser sources have proven to perform better than other arc lamps beam sources. While the later are normally cheaper sources of beams, they come with limited lifetime, poor image quality and impossibility of high wall-plug efficiency. This is particularly as a result of poor spatial coherence and availability of less color space, a result of which has seen a rapid rise in their demand.
The success of these lasers has to do with the coherency of wavelengths. They are both coherent in time and space to each other hence the possibility of inferences. The change of phase properties happens at the same time over a long distance making them preferred for entertainment and other professional uses.
The narrow optical bandwidth of the three types of beams produced put them close to monochromatic beams, a property that makes them able to produce very sharp and clear images on color mixing. For this reason, their applications are increasing, not forgetting the use in cathode tubes, lamp based beamers, color printers and many types of projectors.
These beam sources however are associated with low level power emission. With cinema projectors demanding 10 W for each color or more, these projectors have to be designed to meet this power demand level for them to be usable. Their level of power sufficiency, maturity and cost effectiveness are the major setbacks when it comes to their application.
This are at times fitted with power-modulators particularly in the instances where the use of optical modulators is not practical due to low-power miniature devices. This is done to achieve better signals and laser diodes are used in most of the occasions. These particular diodes help achieve increased bandwidth to tens or hundreds of megahertz which in turns significantly improves resolutions.
The construction of RGB lasers can be achieved in several manners with the most common ones involving the use of three different lasers with each producing one of the three colors. This method of visible beams however comes with several limitations in comparison to the other methods that employ the use of near infrared rays.
The use of infrared solid-state lasers involves application of a single laser that emits a beam of near infrared (invisible) nature. Such a beam then undergoes through several stages of nonlinear frequency conversion the end of which a three colored beam is produced. The other methods that have also been used to obtain these colors are the combination of parametric oscillators, the use of frequency doublers and the use of frequency mixers.
Technological advancement is however set to completely address the challenges in with an RGB laser. Just like other forms of lasers, they are set to be used in all other areas where there are need for lasers like in hospital machines, cutting technology and in entertainment industry among others.
RGB laser sources have proven to perform better than other arc lamps beam sources. While the later are normally cheaper sources of beams, they come with limited lifetime, poor image quality and impossibility of high wall-plug efficiency. This is particularly as a result of poor spatial coherence and availability of less color space, a result of which has seen a rapid rise in their demand.
The success of these lasers has to do with the coherency of wavelengths. They are both coherent in time and space to each other hence the possibility of inferences. The change of phase properties happens at the same time over a long distance making them preferred for entertainment and other professional uses.
The narrow optical bandwidth of the three types of beams produced put them close to monochromatic beams, a property that makes them able to produce very sharp and clear images on color mixing. For this reason, their applications are increasing, not forgetting the use in cathode tubes, lamp based beamers, color printers and many types of projectors.
These beam sources however are associated with low level power emission. With cinema projectors demanding 10 W for each color or more, these projectors have to be designed to meet this power demand level for them to be usable. Their level of power sufficiency, maturity and cost effectiveness are the major setbacks when it comes to their application.
This are at times fitted with power-modulators particularly in the instances where the use of optical modulators is not practical due to low-power miniature devices. This is done to achieve better signals and laser diodes are used in most of the occasions. These particular diodes help achieve increased bandwidth to tens or hundreds of megahertz which in turns significantly improves resolutions.
The construction of RGB lasers can be achieved in several manners with the most common ones involving the use of three different lasers with each producing one of the three colors. This method of visible beams however comes with several limitations in comparison to the other methods that employ the use of near infrared rays.
The use of infrared solid-state lasers involves application of a single laser that emits a beam of near infrared (invisible) nature. Such a beam then undergoes through several stages of nonlinear frequency conversion the end of which a three colored beam is produced. The other methods that have also been used to obtain these colors are the combination of parametric oscillators, the use of frequency doublers and the use of frequency mixers.
Technological advancement is however set to completely address the challenges in with an RGB laser. Just like other forms of lasers, they are set to be used in all other areas where there are need for lasers like in hospital machines, cutting technology and in entertainment industry among others.
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