Light Coherence

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Questions related from Light Coherence

How to measure point spread function experimentally?

We are planning to use a light source with 18nm band width, mode lacked laser for OCT imaging. We are just at initial stage. How do we measure point spread function and coherence length for this...

28 April 2015 5,446 4 View

What is the effect of pump laser on signal field profile/mode in a fiber amplifier? Does stimulated emission help in preserve signal mode structure?

We would like to know whether pump laser field profile has any effect on signal laser light field distribution in a fiber amplifier. While stimulated emission in a doped fiber, how do signal and...

28 April 2015 4,516 5 View

How to understand the physical meaning of the wave vector "k" of light... ? Thank you in advance?

wave vector of light is expressed as k=2pi/lambda, what does really mean? what is the need of this quantity in understanding the light, though we have E, B, Poynting vector an so on..? Would any...

09 April 2015 1,925 10 View