Improved optical filter responses in cascaded InGaAsP/InPmicrodisk resonators
- 26 April 2001
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 37 (9) , 564-565
- https://doi.org/10.1049/el:20010374
Abstract
Cascaded InGaAsP/InP microdisk resonators as optical filters are fabricated by deep dry-etching. Compared with single microdisk resonators, these higher-order filters show steeper rolloffs and flatter passbands. The bandwidth ratios of 15 to 3 dB for the single, three and five cascaded microdisk resonator filters are ~2.4, 1.4 and 1.2.Keywords
This publication has 5 references indexed in Scilit:
- InGaAsP thin-film microdisk resonators fabricated by polymer wafer bonding for wavelength add-drop filtersIEEE Photonics Technology Letters, 2000
- Higher order filter response in coupled microring resonatorsIEEE Photonics Technology Letters, 2000
- Second-order filter response from parallel coupled glass microring resonatorsIEEE Photonics Technology Letters, 1999
- Increasing the free spectral range of silica waveguide rings for filter applicationsOptics Letters, 1998
- Waveguide-coupled AlGaAs/GaAs microcavity ring and disk resonators with high finesse and 216-nm free spectral rangeOptics Letters, 1997