REDUCTION OF FILTER SIDELOBE LEVEL BY AN X-CROSSING VERTICAL COUPLED ARROW FILTER

Authors
CHU ST PAN W SATO S MAEDA T LITTLE B KOKUBUN Y
Citation
St. Chu et al., REDUCTION OF FILTER SIDELOBE LEVEL BY AN X-CROSSING VERTICAL COUPLED ARROW FILTER, IEEE photonics technology letters, 10(3), 1998, pp. 391-393
Citations number
6
Categorie Soggetti
Optics,"Physics, Applied
Journal title
IEEE photonics technology letters → ACNP
ISSN journal
10411135
Volume
10
Issue
3
Year of publication
1998
Pages
391 - 393
Database
ISI
SICI code
1041-1135(1998)10:3<391:ROFSLB>2.0.ZU;2-M
Abstract
An antiresonant reflecting optical waveguide (ARROW) type vertical cou pler filter exhibiting low sidelobe characteristics is demonstrated. T he sidelobe level of the filter has been suppressed by using an X-cros sing arrangement to provide strength apodization along the device. The main sidelobe of the fabricated filter is measured to be less than -1 7 dB with the central wavelength in the 1.55-mu m region.