Array of grating–fiber couplers
- 1 May 1990
- journal article
- Published by Optica Publishing Group in Optics Letters
- Vol. 15 (9) , 463-465
- https://doi.org/10.1364/ol.15.000463
Abstract
Along a single-mode fiber a number M of grating–fiber couplers are fabricated at equal spacings L0. The fiber is coiled so that the couplers lie side by side, forming a planar optical antenna array. With varying optical frequency the resulting radiation lobes sweep slowly along the meridional direction but fast along the orthogonal azimuthal direction. In a spectrometer-type setup with M = 3 and L0 = 300 mm a frequency resolution of 230 MHz is demonstrated.Keywords
This publication has 2 references indexed in Scilit:
- Grating–fiber coupler as a high-resolution spectrometerOptics Letters, 1985
- Distributed coupling on polished single-mode optical fibersApplied Optics, 1981