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Mode degeneracy in quasioptical resonators
Author(s) -
Monahan G. P.,
Heron P. L.,
Steer M. B.,
Mink J. W.,
Schwering F. K.
Publication year - 1995
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650080503
Subject(s) - resonator , aperture (computer memory) , optics , gaussian , physics , laguerre polynomials , hermite polynomials , mode (computer interface) , gaussian beam , beam (structure) , quantum mechanics , acoustics , computer science , operating system
Fabry‐Perot resonators and beam waveguides are used in quasioptical systems to refocus electromagnetic fields. These fields are described by Laguerre Gaussian or Hermite Gaussian quasi‐TEM mode families depending on whether the aperture is rectangular or circular. It is shown that certain lower‐order Laguerre Gaussian and Hermite Gaussian modes are identical. This has implications for the design of quasioptical systems for mode selection. © 1995 John Wiley & Sons. Inc.