[DOC] [TLE] Laser diode - Wikipedia [PAR] A laser diode, or LD also known as injection laser diode or ILD, is an electrically 
pumped semiconductor laser in which the active laser medium is formed by a p-n 
junction of a semiconductor diode similar to that found in a light-emitting diode. 
The laser diode is the most common type of laser produced with a wide ... As 
diode lasers are semiconductor devices, they may also be classified as... [DOC] [TLE] Semiconductor laser diodes | How they work | Who invented them? [PAR] Mar 16, 2016 ... Chances are you've used a semiconductor laser in the last few days without ... 
Never attempt to look at the laser light in a CD player: you could easily blind 
yourself. ... of treated silicon known as p-type (rich in "holes" or, in other words, ... 
notably an alloy of aluminum and gallium arsenide (indium gallium... [DOC] [TLE] Scientific Principles [PAR] Silicon-based materials dominate in the semiconductor industry and in electronic 
devices like ... (or gallium arsenide) which is the material used in the laser of a 
CD player. ... Figure 1: Elements found in elemental and compound 
semiconductors. .... Doping can produce two types of semiconductors depending 
upon the... [DOC] [TLE] Physics - Focus: <i>Landmarks</i>: Invention of the CD-Player Laser [PAR] Jul 16, 2010 ... Small diode lasers are used in surgery, telecommunications, printing, ... Later that 
year, the first gallium arsenide laser was reported in Physical Review Letters. The 
modern descendants of that device are the tiny lasers that abound in ... a 
semiconductor can be either n-type, meaning that current flows in the... [DOC] [TLE] Encyclopedia of Laser Physics and Technology - semiconductor ... [PAR] Encyclopedia article on semiconductor lasers, laser diodes. ... They are used e.g. 
in laser pointers, in CD players, and for optical fiber communications. [DOC] [TLE] Gallium, Chemical Element - uses, elements, examples, metal ... [PAR] Using Mendeleev's periodic law, the element was soon found. .... that operates a 
compact disc (CD) player, for example, may contain a piece of gallium arsenide. 
... A transistor is a device used to control the flow of electricity in a circuit. Gallium 
arsenide has many of the properties of a semiconductor. ... Type the code shown:
. [DOC] [TLE] A reprieve for Moore's law: milspec chip writes computing's next ... [PAR] Jun 9, 2016 ... Raytheon's work on gallium nitride semiconductors could have a reach ... and 
some commercial manufacturers of GaN chips have found a way to ... devices 
have used chips made with gallium arsenide (GaAs) as ... GaAs chips have been 
used for the LEDs used in DVD and CD player lasers, but the chips... [DOC] [TLE] Blue Chip - Scientific American [PAR] Jul 5, 2000 ... The blue-light semiconductor laser, an offshoot of the LED, also has ... about half 
that of the infrared semiconductor lasers typically found in CD players and laser 
printers. ... So in 1983, Nakamura started working with gallium arsenide. .... Any 
semiconductor device requires both p-type and n-type materials. [DOC] [TLE] Sam's Laser FAQ - Diode Lasers - Sci.Electronics.Repair FAQ [PAR] The most common types found in popular devices like CD players and laser ... 
These are gallium arsenide (GaAs) heterojunction laser diodes. .... Diode lasers (
being band-to-band or excitonic semiconductor transitions) have .... CDRH has a 
curve of power versus wavelength that is used for determining safety classes. [DOC] [TLE] What is gallium arsenide (GaAs)? - Definition from WhatIs.com [PAR] GaAs devices generate less noise than most other types of semiconductor ... is 
used in the manufacture of light-emitting diode s (LEDs), which are found in... [DOC] [TLE] Laser Diodes - Learn About Electronics [PAR] Recognise Safety labelling used on LASER equipment. ... from a laser such as 
that found in a CD player would be about 1.6m (less than two ... An Atom of 
Gallium ... this case is similar to

Question: Gallium arsenide is used in  the semiconductor type of this device found in CD players
Answer: laser