Title :
Influence of the spectral tuning on modulation response of dynamic single-mode heterolasers (1.5 µm-diapason)
Author :
Kuntsevich, B.F. ; Kononenko, V.K.
Author_Institution :
Stepanov Inst. of Phys., NASB, Minsk, Belarus
Abstract :
Using numerical modeling, influence of tuning the lasing frequency within the gain band on the modulation response of quantum-well heterolasers in the GaInAs-GaInAsP system versus the modulation frequency of pump current is investigated. It is established that maximum values of the frequency width of the response band and possibilities of realization of high-speed regimes at signal transmission in information systems are obtained at the central region of the gain band. Growth of the direct component of the pump current results in increasing the response bandwidth. At typical system parameters (in the region of 1.5 μm) the maximum value of the response bandwidth can be up to ≈ 40 GHz.
Keywords :
III-V semiconductors; frequency modulation; gallium arsenide; gallium compounds; indium compounds; laser modes; laser tuning; optical modulation; optical pumping; quantum well lasers; GaInAs-GaInAsP; dynamic single-mode heterolasers; gain band; modulation response; numerical modeling; pump current modulation frequency; quantum-well heterolasers; response band frequency width; signal transmission; spectral tuning; wavelength 1.5 mum; Fiber lasers; Frequency modulation; Laser excitation; Pump lasers; Resonant frequency; Semiconductor lasers;
Conference_Titel :
Laser and Fiber-Optical Networks Modeling (LFNM), 2010 10th International Conference on
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4244-6994-9
DOI :
10.1109/LFNM.2010.5624199
