Optical apparatus for conversion of whispering-gallery modes int

Details Optical apparatus for conversion of whispering-gallery modes int Optical apparatus for conversion of whispering-gallery modes int

1991-06-07

1992-05-19

Healy, Brian

Optical waveguides

With optical coupler

Particular coupling function

385 11, 385 37, 385146, 385147, 359853, 333 21R, 333251, G02B 626, H01P 116

Patent

active

051154820

ABSTRACT:
An optical converter for efficient conversion of millimeter wavelength whispering-gallery gyrotron output into a linearly polarized, free-space Gaussian-like beam. The converter uses a mode-converting taper and three mirror optics. The first mirror has an azimuthal tilt to eliminate the k.sub..phi. component of the propagation vector of the gyrotron output beam. The second mirror has a twist reflector to linearly polarize the beam. The third mirror has a constant phase surface so the converter output is in phase.

REFERENCES:
patent: 4381137 (1983-04-01), Berg et al.
patent: 4439860 (1984-03-01), Kurnit
patent: 4521075 (1985-06-01), Obenschain et al.
patent: 4942623 (1990-07-01), Asawa et al.
patent: 4992763 (1991-02-01), Bert et al.
patent: 5030929 (1991-07-01), Moeller
patent: 5043629 (1991-08-01), Doane

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