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1 vote
1 answer
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Must the distance between the reflectors of a coherent laser be a multitude of its intended wavelength?

Must the distance (aka cavity length $L$) between the two reflective mirrors of a spatial and temporal coherent laser be a multitude of the lasers intended wavelength? If no, why not? If yes, how does ...
Marcus's user avatar
  • 282
0 votes
2 answers
854 views

Will these two coherent electromagnetic waves be in phase?

My question is how will I know if two coherent electromagnetic waves are in phase based on their phase difference. I just solved a problem which stated... Two coherent sources A & B send ...
kal's user avatar
  • 57
2 votes
1 answer
3k views

Laser Coherence Length/Time

Scenario: Imagine a collimated beam of white light falling on one refracting face of a prism. Let the light emerging from the second face be focused by a lens onto a screen. Suppose there is linear ...
kuantumbro's user avatar