LASER Applications help please

[Loyal bear]

Homework Statement

Determine which characteristic of LASER is used

Relevant Equations

No equations in this problem

Can someone tell me about the characteristic of LASER that enables it from the following usage:
1-holography 2-orienting missiles 3-star wars 4-CD and DVD 5-medical surgery 6- telecommunications and fiber optics 7-LASER printer 8-cutting metals

 

[DaveE]

Not without you trying first. Please review the homework guidelines

Have you tried researching on the web yet? What if you searched for something like "lasers for cutting metals".

 

[Loyal bear]

Not without you trying first. Please review the homework guidelines

Have you tried researching on the web yet? What if you searched for something like "lasers for cutting metals".

I tried and saw many books on this topic , but they differ about the characteristics and every book and website say a different characteristic.

 

[Loyal bear]

I

Not without you trying first. Please review the homework guidelines

Have you tried researching on the web yet? What if you searched for something like "lasers for cutting metals"

That is my trial in order:
1- holography: coherence
2- orienting missiles: collimation
3- star wars: intensity
4- CD and DVD: collimaton
5- medical surgery: intensity
6- telecommunications and fiber optics: coherence and collimation
7- LASER printer: collimation
8- cutting metals: ??

[List edited by the Mentors for clarity]

I hope you help me and edit my wrong answers.

 

[berkeman]

I hope you help me and edit my wrong answers.

We do not edit wrong answers for you here.

What-all are the properties of lasers that you are using? So far I think I see three: intensity, coherence and collimation. Are there any others? Where did you find those properties?