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Sinar Laser dan optik
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Laser and Optical fiber
DefinitionLaser
Laser is a device mechanism that emits electromagnetic radiation, usually in the form of light that can not be seen or can be seen with normal eyes, through the process of stimulated emission. The emission of laser is usually single, emits photons in a coherent emission. Lasers can also be said of the effects of quantum mechanics. The term "laser" originated as an acronym for Light Amplification by Stimulated Emission of Radiation.
Optical fiberAn optical fiber (or optical fibre) is a flexible, transparent fiber made of glass (silica) or plastic, slightly thicker than a human hair. It functions as a waveguide, or “light pipe”, to transmit light between the two ends of the fiber. The light source that used is usually laser or LED
Definition
Frequency RangeIn terms of frequency, this
corresponds to a band in the vicinity of 430–790 THz
Around 405 nm produces a violet light600 - 700 nm results in visible red
light, which penetrates up to 1/2".
Wavelength
Generally, the laser operates in the visible spectrum
How it works?
How it works?
FounderCharles Hard
Townes (born July 28, 1915
Arthur Leonard Schawlow (May 5, 1921 – April 28, 1999)
Founder
In 1957, Charles Hard Townes and Arthur Leonard Schawlow, then at Bell Labs, began a serious study of the infrared laser. As ideas developed, they abandoned infrared radiation to instead concentrate upon visible light. The concept originally was called an "optical maser". In 1958, Bell Labs filed a patent application for their proposed optical maser; and Schawlow and Townes submitted a manuscript of their theoretical calculations to the Physical Review, published that year in Volume 112, Issue No. 6.
ApplicationMedicine: Bloodless surgery, laser
healing, surgical treatment, kidney stone treatment, eye treatment, dentistry
Industry: Cutting, welding, material heat treatment, marking parts, non-contact measurement of parts
Military: Marking targets, guiding munitions, missile defence, electro-optical countermeasures (EOCM), alternative to radar, blinding troops.
Law enforcement: used for latent fingerprint detection in the forensic identificationfield
ApplicationResearch: Spectroscopy, laser ablation,
laser annealing, laser scattering, laser interferometry, LIDAR, laser capture microdissection, fluorescence microscopy
Product development/commercial: laser printers, optical discs (e.g. CDs and the like), barcode scanners, thermometers, laser pointers, holograms, bubble grams.
Laser lighting displays: Laser light showsCosmetic skin treatments: acne treatment,
cellulite and striate reduction, and hair removal.
Laser healing
1. Sebuah sinar masuk dari medium udara ke medium gelas. Tentukan berapa besarnya sudut jika sudut datangnya , n1= 1 dan n2=1,5
Jawab
Questions
2. Bahaya dari penggunaan sinar laserCidera mata
Laser dapat membakar retina mata dan bahkan permukaan kulit jika tidak tepat dioperasikan
3. Apa Keuntungan Fiber Optik Dibanding Media Lain?- Lebih kecil ukurannya- Penurunan kualitas sinyal lebih
sedikit- Daya listrik kecil- Ringan dan fleksibel- Komunikasi lebih aman
Daftar Pustakahttp://id.wikipedia.org/wiki/Laserhttp://id.wikipedia.org/wiki/Serat_
optikhttp://www.elektroindonesia.com/
elektro/ut30.htmlhttp://www.healthiswealthmaui.c
om/laserfrequencies.htmlhttp://www.google.com/search?q
=soal+dan+jawaban+sinar+laser+dan+serat+optik&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a
http://efendybloger.blogspot.com/2012/11/Apa-itu-Fiber-Optik-dan-Bagaimana-Cara-Kerjanya.html