Abstract
We present the first detailed theoretical analysis of the static tuning properties of a phase-tunable DFB laser. The device consists of a conventional or a λ/4-shifted DFB laser monolithically integrated with an external waveguide section with separate electrodes for phase control. Tuning curves are presented for threshold current, frequency, linewidth, and output power. The analysis demonstrates a generally higher side mode suppression and larger frequency tuning range, but also a larger linewidth for the λ/4-shifted device compared to the device with a conventional DFB section.
| Originalsprog | Engelsk |
|---|---|
| Tidsskrift | IEEE Journal of Quantum Electronics |
| Vol/bind | 24 |
| Udgave nummer | 12 |
| Sider (fra-til) | 2367-2375 |
| Antal sider | 9 |
| ISSN | 0018-9197 |
| DOI | |
| Status | Udgivet - dec. 1988 |
| Udgivet eksternt | Ja |
Bibliografisk note
Funding Information:Manuscript received November 25, 1987; revised February 4, 1988. This work was supported by the EEC under Contract ST2J-0171-2-DK. H. Olesen and B. Tromborg are with the Telecommunication Research Laboratory (TFL), DK-2970 Hdrsholm, Denmark. X. Pan is with the Electrornagnetics Institute, Technical University of Denmark, DK-2800 Lyngby. Denmark. IEEE Log Number 8824148.