Small-signal modulation of a two-section semiconductor laser amplifier: Pure PM response
- 1 May 1991
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 3 (5) , 445-447
- https://doi.org/10.1109/68.93873
Abstract
A description is given of how a near-traveling-wave two-section semiconductor laser amplifier used as an external modulator can accomplish phase modulation (PM) without any accompanying amplitude modulation (AM). The analysis, performed by numerical small-signal simulation, shows that it is possible to obtain pure PM by adjustment of the ratio of the modulation currents of the two sections. An AM-suppressed PM response of 0.4 pi rad/mA with a 3-dB modulation bandwidth, of 1 GHz can be obtained.Keywords
This publication has 3 references indexed in Scilit:
- Semiconductor laser amplifier optimization: an analytical and experimental studyIEEE Journal of Quantum Electronics, 1989
- Formulas for direct frequency modulation response of two-electrode diode lasers: proposals for improvementElectronics Letters, 1987
- Small-signal response of a semiconductor laser with inhomogeneous linewidth enhancement factor: Possibilities of a flat carrier-induced FM responseApplied Physics Letters, 1985