We present a complete large-signal dynamic model of electroabsorption modulator integrated (EAMI) distributed feedback (DFB) lasers using the time-dependent transfer matrix method. With this model, it is possible to analyze dynamic characteristics depending on optical feedback and spatial hole burning. Also, we can separately calculate the laser and modulator chirp including the voltage-dependent modulator chirp parameter, the grating phase at the end of the laser section, the length of the waveguide region, and electrical coupling. Therefore, our model can provide better predictions regarding the laser and modulator chirp. The calculated large-signal chirp using our model has similar characteristics to the measured large-signal chirp for 10-Gb/s EAMI-DFB lasers.
Bibliographical noteFunding Information:
Manuscript received November 27, 1999; revised April 17, 2000. This work was supported by the University Research Program of the Ministry of Information and Communication in South Korea and Korea University. The authors are with the Department of Radio Engineering, Korea University, Seoul 136-701, Korea. Publisher Item Identifier S 0018-9197(00)06175-3.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering