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Open Quantum Systems Decoherence Photonic Quantum Computing

Observed factorization of excess quantum noise that is due to both polarization and spatial mode nonorthogonality.

PubMed
Authors: Karman GP, Lindberg AM, Woerdman JP

Year

1998

Paper ID

13483

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

80

Citations

6

Abstract

When the eigenmodes of a laser cavity are nonorthogonal, the quantum-limited linewidth of the laser is larger by an excess-noise factor than the standard Schawlow-Townes expression. Mode nonorthogonality can exist in the spatial domain, as in unstable-cavity resonators, but also in the polarization domain when the two polarization eigenmodes are nonorthogonal. We show experimentally that these two contributions are independent of each other, i.e., that the excess-noise factor factorizes as a product of the spatial and polarization excess-noise factors.

Why This Paper Matters

  • This paper contributes to the Photonic Quantum Computing research area in the Quantum Articles archive.
  • It adds a 1998 reference point for readers tracking recent quantum research.
  • When the eigenmodes of a laser cavity are nonorthogonal, the quantum-limited linewidth of the laser is larger by an excess-noise factor than the standard Schawlow-Townes...

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References & Citation Signals

[1] DOI https://doi.org/10.1364/ol.23.001698 [2] Publisher https://pubmed.ncbi.nlm.nih.gov/18091888/

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