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Communication modes with partially coherent fields.

Per Martinsson1, Hanna Lajunen, Ari T Friberg

  • 1Royal Institute of Technology (KTH), Department of Microelectronics and Applied Physics, Optics Section, Electrum 229, SE-164 40 Kista, Sweden. permart@kth.se

Journal of the Optical Society of America. A, Optics, Image Science, and Vision
|October 4, 2007
PubMed
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We introduce communication modes to describe partially coherent wave fields in linear optical systems. This new theory simplifies propagating optical fields through deterministic systems, offering insights into coherence properties.

Area of Science:

  • Optics
  • Wave Physics
  • Quantum Optics

Background:

  • Partially coherent wave fields are fundamental in various optical phenomena.
  • Describing the propagation of these fields through linear systems is complex.
  • Existing methods may lack efficiency for diverse coherence states.

Purpose of the Study:

  • To develop a novel theoretical framework for partially coherent wave fields.
  • To introduce and utilize 'communication modes' for field propagation.
  • To analyze the relationship between communication modes and coherence properties.

Main Methods:

  • Developing a theory based on singular functions and values of propagation kernels.
  • Utilizing a modal representation derived from system properties.

Related Experiment Videos

  • Deriving expressions for the effective degree of coherence.

    • Main Results:

    • Demonstrated a method to propagate optical fields of any coherence state.
    • Established the link between communication modes and conventional coherent-mode representations.
    • Derived key expressions for effective coherence within optical systems.

    Conclusions:

    • The communication mode theory provides an effective tool for analyzing partially coherent fields.
    • This approach simplifies the propagation of complex optical fields in linear systems.
    • Numerical examples in near-field geometry validate the theoretical framework.