Title :
Intermodulation and Harmonic Distortion in Traveling-Wave Semiconductor Cascade Laser
Author :
Hashim, Hasnul H. ; Iezekiel, Stavros
Author_Institution :
Dept. of Electr. & Electron. Eng., Inst. Teknol. Brunei, Gadong, Brunei
Abstract :
Intermodulation distortion and harmonic distortion in a traveling-wave semiconductor cascade laser (TWSCL) is investigated. The TWSCL is an extension of the idea of a semiconductor cascade laser where transmission lines connect the laser diodes in a cascade followed by a terminating impedance. The nonlinear behavior of the TWSCL is analyzed using harmonic balance and determined to be comparable to a resistively matched laser diode. The analysis is further supported using a perturbative approach. Experimental results for a TWSCL using packaged devices are presented.
Keywords :
harmonic distortion; intermodulation distortion; microwave photonics; nonlinear optics; optical distortion; semiconductor lasers; transmission lines; TWSCL; harmonic balance; harmonic distortion; intermodulation distortion; laser diodes; nonlinear behavior; transmission lines; traveling-wave semiconducor cascade laser; Bandwidth; Diode lasers; Frequency conversion; Harmonic analysis; Impedance; Optical distortion; Quantum cascade lasers; Semiconductor cascade laser (SCL); traveling-wave; wavelength-division multiplexing (WDM);
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2010.2078930
