Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities
We present a multimode laser-linewidth theory for arbitrary cavity structures and geometries that contains nearly all previously known effects and also finds new nonlinear and multimode corrections, e.g., a correction to the α factor due to openness of the cavity and a multimode Schawlow-Townes rela...
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sg-ntu-dr.10356-1033542023-02-28T19:43:56Z Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities Pick, A. Cerjan, Alexander Liu, D. Rodriguez, A. W. Stone, A. D. Chong, Yi Dong Johnson, S. G. School of Physical and Mathematical Sciences We present a multimode laser-linewidth theory for arbitrary cavity structures and geometries that contains nearly all previously known effects and also finds new nonlinear and multimode corrections, e.g., a correction to the α factor due to openness of the cavity and a multimode Schawlow-Townes relation (each linewidth is proportional to a sum of inverse powers of all lasing modes). Our theory produces a quantitatively accurate formula for the linewidth, with no free parameters, including the full spatial degrees of freedom of the system. Starting with the Maxwell-Bloch equations, we handle quantum and thermal noise by introducing random currents whose correlations are given by the fluctuation-dissipation theorem. We derive coupled-mode equations for the lasing-mode amplitudes and obtain a formula for the linewidths in terms of simple integrals over the steady-state lasing modes. Published version 2015-09-23T07:28:43Z 2019-12-06T21:10:44Z 2015-09-23T07:28:43Z 2019-12-06T21:10:44Z 2015 2015 Journal Article Pick, A., Cerjan, A., Liu, D., Rodriguez, A. W., Stone, A. D., Chong, Y. D., et al. (2015). Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities . Physical Review A, 91, 063806-. https://hdl.handle.net/10356/103354 http://hdl.handle.net/10220/38745 10.1103/PhysRevA.91.063806 en Physical Review A © 2015 American Physical Society (APS). This paper was published in Physical Review A and is made available as an electronic reprint (preprint) with permission of American Physical Society (APS). The published version is available at: [http://dx.doi.org/10.1103/PhysRevA.91.063806]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
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Singapore Singapore |
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We present a multimode laser-linewidth theory for arbitrary cavity structures and geometries that contains nearly all previously known effects and also finds new nonlinear and multimode corrections, e.g., a correction to the α factor due to openness of the cavity and a multimode Schawlow-Townes relation (each linewidth is proportional to a sum of inverse powers of all lasing modes). Our theory produces a quantitatively accurate formula for the linewidth, with no free parameters, including the full spatial degrees of freedom of the system. Starting with the Maxwell-Bloch equations, we handle quantum and thermal noise by introducing random currents whose correlations are given by the fluctuation-dissipation theorem. We derive coupled-mode equations for the lasing-mode amplitudes and obtain a formula for the linewidths in terms of simple integrals over the steady-state lasing modes. |
| author2 |
School of Physical and Mathematical Sciences |
| author_facet |
School of Physical and Mathematical Sciences Pick, A. Cerjan, Alexander Liu, D. Rodriguez, A. W. Stone, A. D. Chong, Yi Dong Johnson, S. G. |
| format |
Article |
| author |
Pick, A. Cerjan, Alexander Liu, D. Rodriguez, A. W. Stone, A. D. Chong, Yi Dong Johnson, S. G. |
| spellingShingle |
Pick, A. Cerjan, Alexander Liu, D. Rodriguez, A. W. Stone, A. D. Chong, Yi Dong Johnson, S. G. Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities |
| author_sort |
Pick, A. |
| title |
Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities |
| title_short |
Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities |
| title_full |
Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities |
| title_fullStr |
Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities |
| title_full_unstemmed |
Ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities |
| title_sort |
ab initio multimode linewidth theory for arbitrary inhomogeneous laser cavities |
| publishDate |
2015 |
| url |
https://hdl.handle.net/10356/103354 http://hdl.handle.net/10220/38745 |
| _version_ |
1759856893409361920 |