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Absorption-controlled tunable DFB amplifier-filters
- Source :
- Electronics Letters; August 1994, Vol. 30 Issue: 16 p1294-1296, 3p
- Publication Year :
- 1994
-
Abstract
- The continuous tuning range of a three-section DFB amplifier-filter with a passive centre section can be strongly enhanced by combining the carrier-induced Bragg wavelength shift with the conventional wavelength shift due to the phase shift between the two lateral gain sections. This principle is demonstrated by the fabrication of filters exhibiting a nearly constant gain of 15 dB as well as a 4 GHz filtering bandwidth over a 2.2 nm continuous tuning range.
Details
- Language :
- English
- ISSN :
- 00135194 and 1350911X
- Volume :
- 30
- Issue :
- 16
- Database :
- Supplemental Index
- Journal :
- Electronics Letters
- Publication Type :
- Periodical
- Accession number :
- ejs11976218