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1 vote
3 answers
208 views

What is the reason two rays originally polarized orthogonally but were rotated to parallel polarization does not visibly interfere even slightly?

The Fresnel–Arago laws by Augustin-Jean Fresnel and François Arago summarise some of the more important properties of interference between light of different states of polarization. The laws are as ...
1 vote
2 answers
272 views

Coherent Polarization Beam Combination

All the papers I have read regarding coherent polarization beam combination split laser beams and then coherently combine the components. But is it possible to coherently combine two different lasers ...
1 vote
0 answers
58 views

Can we achieve coherence/high directivity by polarisation?

I can understand little bit what coherence means and little bit what is polarisation means. The question is there a way to achieve coherence by polarisation? Specifically consider a source of dipole. ...
0 votes
1 answer
4k views

Coherent vs In Phase vs Polarized Light [duplicate]

What are the distinct differences, if any, between Coherent Light, Light that is In Phase, and Polarized Light? Also: I have found conflicting definitions of coherent light, where one definition is "...
5 votes
2 answers
321 views

Can polarization effect the coherence length?

I'm taking an optics lab in which I'm required to construct an interferometer, and measure the wavelength of a laser, and the coherence length of the light emitted from a candle fire. Now, I've been ...
1 vote
0 answers
27 views

Polarized Coherent Beam Hits a Polarizer Off-Polarization Angle While Varying Distance?

Just wondering about an experiment that should be easy to perform on an optical bench: A coherent beam is polarized. It then hits another polarizer which is set to permit a polarization angle off ...
1 vote
1 answer
422 views

Connection between Polarization and Coherence in optics

It is not completely clear to me how the notions of polarization and coherence, in optics, work together! I quite understand both of them but it's still hard to grasp their deep connection. I'm quite ...
2 votes
2 answers
2k views

Convert normal white light to laser-like light?

Is there a probable device that can convert white light to laser-like light without the need of an electrical stage in-between? I'm thinking of something along this level. A very precise filter and ...
2 votes
1 answer
552 views

Coherency matrix of partially polarized light doesn't contain all information on polarization state?

The electric field of quasi-monochromatic, partially polarized light can be expressed by the following random process (Goodman, Statistical optics) $$\bar{E}(t,\bar{x})=u_{x}(t,\bar{x})\bar{e}_{x}+u_{...
6 votes
1 answer
849 views

Are two polarization states of light coherent?

Let's consider a situation: we have distant point source of unpolarized light in certain non-zero range of wavelengths (it's polychromatic). Let's divide this light into 2 beams depending on ...