P. Brosson et H. Bissessur, ANALYTICAL EXPRESSIONS FOR THE FM AND AM RESPONSES OF AN INTEGRATED LASER-MODULATOR, IEEE journal of selected topics in quantum electronics, 2(2), 1996, pp. 336-340
The need for low-chirp and compact transmitters for high-bit-rate opti
cal links has led to the development of integrated laser electroabsorp
tion modulators (ILM). We have investigated feedback effects inducing
frequency chirp by developing a model treating the ILM as a whole and
obtained analytical expressions of the FM and AM responses. The variat
ion of the frequency chirp with the residual facet reflectivity of the
modulator section is calculated. The model predicts the unusual peak
in the measured frequency responses and has been used to define design
rules.