Guiding Wave Through Diffraction in Photonic Crystal Fiber

Click For Summary
SUMMARY

This discussion focuses on the guidance of waves in photonic crystal fibers through diffraction rather than reflection. The participants explore the feasibility of extruding a planar diffractive element within a fiber to achieve specific wave patterns, such as Bessel beams or Laguerre-Gauss beams. The conversation references the use of holograms and spatial phase modulation (SPM) to create multifocus tools and specific beam shapes. Additionally, the recent article by Prof. Canning in OpticsExpress regarding "Fresnel-fiber" is highlighted as a relevant resource.

PREREQUISITES
  • Understanding of photonic crystal fibers
  • Knowledge of diffraction and scattering principles
  • Familiarity with spatial phase modulation (SPM)
  • Basic concepts of laser beam shaping, including Bessel and Laguerre-Gauss beams
NEXT STEPS
  • Research the design and applications of photonic crystal fibers
  • Explore the principles of diffraction in optical systems
  • Study the implementation of spatial phase modulation (SPM) in beam shaping
  • Read Prof. Canning's article on "Fresnel-fiber" in OpticsExpress for advanced insights
USEFUL FOR

Researchers, optical engineers, and physicists interested in waveguiding techniques and laser beam shaping in photonic applications.

androz
Messages
19
Reaction score
0
Hi,
Can someone tell me how a wave is guided (in a fiber for instance) thinking
in term of diffraction (or scattering) and not in term of successive
reflections.
And my second question is : would it be possible to "extrude" a plan
diffractive element in a fiber to guide wave and have the right diffractive
motion at the end of the "diffractive fiber" ?
 
Science news on Phys.org
Could you rephrase/expound on your second question? I'm not understanding it.
 
Well,
Imagine you want a particular field pattern, a particular laser beam shape.
It is possible to use holograms or SPM to "create" a multifocus tool, ie
a sort of lattice of light spots for instance, or a particular beam shape
such as Laguerre-Gauss laser beams.
My question was : would it be possible to put a third dimension to this SPM or hologram, just like an optical fibre, in order to guide a wave, and have the desired field at the end of the fiber, such as a Bessel beam, or a Laguerre-Gauss beam...
I was thinking of it just after I read an article of Prof. Canning in
OpticsExpress this month about the so-called "Fresnel-fiber".
 

Similar threads

Graduate X-Ray Diffraction in Crystals: Exploring Scattering & Interference
  • · Replies 3 ·
Replies
3
Views
2K
Problem on Diffraction Grating and Laser Crystallography
  • · Replies 10 ·
Replies
10
Views
3K
Undergrad Is the Indicatrix a Volume Chart or an Ellipsoid for Crystal Optical Properties?
  • · Replies 6 ·
Replies
6
Views
2K
Undergrad Understanding Ewald's sphere in the context of X-Ray diffraction
  • · Replies 3 ·
Replies
3
Views
7K
Graduate What happens when entangled photons are split into different paths?
  • · Replies 41 ·
2
Replies
41
Views
7K
Undergrad Why is Photon Energy Quantized in Terms of Sine Wave Frequency?
  • · Replies 78 ·
3
Replies
78
Views
7K
Graduate Can light travel faster than its regular speed through a fiber?
  • · Replies 2 ·
Replies
2
Views
4K
Graduate Optical Lens Selection for 612nm Laser Source
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Pilot Wave Theory & Non-Locality
  • · Replies 23 ·
Replies
23
Views
5K
High School Question about the spatial extent of a single photon in entanglement
  • · Replies 8 ·
Replies
8
Views
980