Citation
S. Sato et al., 59-nm trimming of center wavelength of ARROW-type vertical coupler filter by UV irradiation, IEEE PHOTON, 11(3), 1999, pp. 358-360
Citations number
6
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE PHOTONICS TECHNOLOGY LETTERS
ISSN journal
10411135
→ ACNP
Volume
11
Issue
3
Year of publication
1999
Pages
358 - 360
Database
ISI
SICI code
1041-1135(199903)11:3<358:5TOCWO>2.0.ZU;2-A
Abstract
An antiresonant reflecting optical waveguide (ARROW)-type vertical coupler
filter (VCF) with a polysilane cover layer is designed and fabricated to de
monstrate the trimming of the center wavelength of the filter by ultraviole
t (UV) irradiation. The propagation constant of the upper waveguide of the
VCF was modified by UV irradiation on the polysilane cover in the presence
of oxygen, The refractive index of polysilane can be adjusted from 1.448 to
1.427 by the exposure time of the UV irradiation, A nide trimming range of
59 nm (1567.5 nm to 1508.8 nm) of center wavelength is demonstrated.