Spontaneous Emission into Open Optical Systems

  • Roberta Marani
  • Melvin Lax
Conference paper

Abstract

The fluctuation-dissipation theorem is used to determine the noise source for an open system with gain or loss. The noise source is projected on to the eigen-modes, which form a biorthogonal set because of the non-Hermitian character associated with gain or loss. The modes provide a flexible intuitive approach, convenient for quantization as well as for numerical calculation. This theory can be readily applied to most semiconductor lasers. The system can be inhomogeneous as in DFB lasers. Spatial variation of the index of refraction and of the gain are taken into account. Our procedure works both for longitudinal and transverse hole-burning. We apply it both below and above threshold.

Keywords

Spontaneous Emission Noise Source Injection Current Linewidth Enhancement Factor Small Signal Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Henry, C. H. (1986), Theory of spontaneous emission noise in open resonators and its application to lasers and optical amplifiers, IEEE J. Lightwave Tech., LT-4, 288–297Google Scholar
  2. Lax, M. (1968), Quantum Noise XI: multïtïme correspondence between quantum and classical stochastic processes, Phys. Rev. 172, 350–361CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • Roberta Marani
    • 1
    • 2
  • Melvin Lax
    • 1
    • 2
  1. 1.Physics Dept.City College of C.U.N.Y.New YorkUSA
  2. 2.AT&T Bell LaboratoriesMurray HillUSA

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