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Verlagsausgabe
DOI: 10.5445/IR/1000064864
Veröffentlicht am 06.04.2018
Originalveröffentlichung
DOI: 10.1088/1367-2630/17/5/053051
Scopus
Zitationen: 14
Web of Science
Zitationen: 15

Transverse-mode coupling and diffraction loss in tunable Fabry-Pé rot microcavities

Benedikter, J.; Hümmer, T.; Mader, M.; Schlederer, B.; Reichel, J.; Hänsch, T. W.; Hunger, D.

Abstract:
Wereport on measurements and modeling of the mode structure of tunable Fabry–Pérot optical microcavities with imperfect mirrors.Wefind that non-spherical mirror shape and finite mirror size leave the fundamental mode mostly unaffected, but lead to loss, mode deformation, and shifted resonance frequencies at particular mirror separations. For small mirror diameters, the useful cavity length is limited to values significantly below the expected stability range.Weexplain the observations by resonant coupling between different transverse modes of the cavity and mode-dependent diffraction loss. A model based on resonant state expansion that takes into account the measured mirror profile can reproduce the measurements and identify the parameter regime where detrimental effects of mode mixing are avoided.


Zugehörige Institution(en) am KIT Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2015
Sprache Englisch
Identifikator ISSN: 1367-2630
URN: urn:nbn:de:swb:90-648641
KITopen ID: 1000064864
Erschienen in New journal of physics
Band 17
Seiten Art. Nr.: 053051
Schlagworte Fabry–Perot resonators, fiber cavities, diffraction, mode coupling
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