An RGB laser is that laser that emits three primary colors of light. These are red light, green light and blue light, hence the acronym RGB. These can be produced in a single beam for all the three colors or separate beams for each of the color. Through the process of optical amplification of stimulated emissions of electromagnetic radiations, it is possible to obtain many more colors from these primary colors.
Arc lamp sources are now being replaced with RGB lasers for light emissions, particularly given that they are much better when it comes to performance as compared to the arc lamp beamers. Arc lamp beamers are known to be the cheaper alternatives but they have limited lifetime, poor image quality and impossibility to achieve high wall-plug efficiency.
These types of lasers achieve coherence of wavelengths, a reason why they outperform many other sources of beams. The coherence is on both time and space allowing for inferences. The consistency in the change of phase properties over a long distance results into high quality images that make them preferred for entertainment and other professional applications.
The red, green and blue colors produced by these sources normally have very narrow optical bandwidth making them similar to monochromatic ones. On mixing, the resulting images are normally very clear as other monochromatic sources of beams. It is not surprising that cathode tube displays, printers and even lamp-based beams are now made of them.
RGB sources however suffer from a major setback given that the power level that is emitted is usually of low level. Most cinema projectors for instance require up to 10 W per color or even more. This level of power sufficiency, maturity or even cost effectiveness is still beyond the existing RGB scanners. When it comes to beam quality, these machines have to operate with high quality beams for them to perform effectively.
External optical modulators are normally used in these types of beamers although RGB sources are fitted with power-modulators for better signals in situations where the optical modulator use is made impossible as a result of low power miniature devices. Laser diodes for instance are used to achieve modulation bandwidth between 10 to 100 megahertz or even much higher 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.
When using an infrared solid state laser, a single beam of a near-infrared laser generating a single color is used. This is then converted into the three color under a several stages of converting non-linear frequency. The other common methods include combining parametric oscillators, frequency doublers method and frequency mixer method.
Technological advancements opens windows for development of a better RGB laser that is capable of overcoming most of the challenges associated with the existing ones. With this possibility, these lasers are predicted to replace all other forms of lasers.
Arc lamp sources are now being replaced with RGB lasers for light emissions, particularly given that they are much better when it comes to performance as compared to the arc lamp beamers. Arc lamp beamers are known to be the cheaper alternatives but they have limited lifetime, poor image quality and impossibility to achieve high wall-plug efficiency.
These types of lasers achieve coherence of wavelengths, a reason why they outperform many other sources of beams. The coherence is on both time and space allowing for inferences. The consistency in the change of phase properties over a long distance results into high quality images that make them preferred for entertainment and other professional applications.
The red, green and blue colors produced by these sources normally have very narrow optical bandwidth making them similar to monochromatic ones. On mixing, the resulting images are normally very clear as other monochromatic sources of beams. It is not surprising that cathode tube displays, printers and even lamp-based beams are now made of them.
RGB sources however suffer from a major setback given that the power level that is emitted is usually of low level. Most cinema projectors for instance require up to 10 W per color or even more. This level of power sufficiency, maturity or even cost effectiveness is still beyond the existing RGB scanners. When it comes to beam quality, these machines have to operate with high quality beams for them to perform effectively.
External optical modulators are normally used in these types of beamers although RGB sources are fitted with power-modulators for better signals in situations where the optical modulator use is made impossible as a result of low power miniature devices. Laser diodes for instance are used to achieve modulation bandwidth between 10 to 100 megahertz or even much higher 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.
When using an infrared solid state laser, a single beam of a near-infrared laser generating a single color is used. This is then converted into the three color under a several stages of converting non-linear frequency. The other common methods include combining parametric oscillators, frequency doublers method and frequency mixer method.
Technological advancements opens windows for development of a better RGB laser that is capable of overcoming most of the challenges associated with the existing ones. With this possibility, these lasers are predicted to replace all other forms of lasers.
No comments:
Post a Comment