ABSORPTION-CONTROLLED TUNABLE DFB AMPLIFIER-FILTERS

Authors
NAKAJIMA H CHARIL J SLEMPKES S ROBEIN D GLOUKHIAN A LANDREAU J PIERRE B BOULEY JC
Citation
H. Nakajima et al., ABSORPTION-CONTROLLED TUNABLE DFB AMPLIFIER-FILTERS, Electronics Letters, 30(16), 1994, pp. 1294-1296
Citations number
7
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
30
Issue
16
Year of publication
1994
Pages
1294 - 1296
Database
ISI
SICI code
0013-5194(1994)30:16<1294:ATDA>2.0.ZU;2-C
Abstract
The continuous tuning range of a three-section DFB amplifier-filter wi th a passive centre section can be strongly enhanced by combining the carrier-induced Bragg wavelength shift with the conventional wavelengt h shift due to the phase shift between the two lateral gain sections. This principle is demonstrated by the fabrication of filters exhibitin g a nearly constant gain of 15dB as well as a 4GHz filtering bandwidth over a 2.2nm continuous tuning range.