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Dipole emitters in fiber: interface effects, collection efficiency and optimization.

Matthew R Henderson1, Shahraam Afshar V, Andrew D Greentree

  • 1Institute for Photonics & Advanced Sensing, School of Chemistry & Physics, University of Adelaide, Adelaide, SA 5005, Australia. matthew.henderson@adelaide.edu.au

Optics Express
|September 22, 2011
PubMed
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This summary is machine-generated.

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Efficiently coupling single photon emitters to optical fibers is crucial for quantum technologies. Our model demonstrates how fiber geometry can enhance photon collection efficiency by up to 2.6 times.

Area of Science:

  • Photonics and Quantum Optics
  • Nanoscale Sensing
  • Optical Fiber Technology

Background:

  • Single photon emitters are vital for quantum applications, but interfacing them with optical fibers remains inefficient.
  • Challenges exist in collecting and delivering photons effectively from these emitters.
  • Existing methods lack optimal integration with optical fiber platforms.

Purpose of the Study:

  • To model the coupling of single photon emitters to optical fiber modes.
  • To investigate methods for enhancing photon collection and delivery efficiency.
  • To analyze the impact of fiber geometry on emitter--fiber coupling.

Main Methods:

  • Modeled single particle emission by considering dipole coupling to optical fiber modes.
  • Analyzed coupling as a function of emitter orientation and position relative to the fiber core-cladding interface.

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  • Investigated modifications to dipole emission patterns and power within the fiber environment.

    • Main Results:

    • Demonstrated that fiber environment can significantly enhance collection efficiency into guided modes.
    • Showcased modifications to dipole emission patterns and power due to fiber interaction.
    • Identified specific geometries yielding up to a 2.6-fold increase in emitted power.

    Conclusions:

    • It is possible to significantly enhance photon collection efficiency by optimizing emitter-fiber coupling.
    • Fiber geometry plays a critical role in modifying dipole emission characteristics.
    • This research offers a pathway to more efficient single photon sources for quantum applications.