Title :
Wavelength Jumps and Multimode Instabilities in Integrated Master Oscillator Power Amplifiers at 1.5
m: Experiments and Theory
Author :
Perez-Serrano, Antonio ; Vilera, Mariafernanda ; Javaloyes, Julien ; Tijero, Jose Manuel G. ; Esquivias, Ignacio ; Balle, Salvador
Author_Institution :
CEMDATIC-E.T.S.I. Telecomun., Univ. Politec. de Madrid, Madrid, Spain
Abstract :
We analyze the large (>10 nm) and abrupt jumps in emission wavelength, together with the multimode instabilities associated with them, which are observed in monolithically integrated master oscillator power amplifiers emitting at 1.5 μm. The physical origin of such phenomena is investigated in the framework of a travelling-wave model which phenomenologically incorporates thermal effects via self and cross-heating of the different sections of the device. The occurrence of the wavelength jumps and the instabilities as a function of the injected currents in the two sections is interpreted in terms of a thermally tuned competition between the modes of the master oscillator and the compound cavity modes.
Keywords :
integrated optics; laser beams; semiconductor lasers; thermo-optical devices; compound cavity modes; cross-heating; emission wavelength; monolithically integrated master oscillator power amplifiers; multimode instabilities; self-heating; thermal effects; thermally tuned competition; travelling-wave model; wavelength 1.5 mum; wavelength jumps; Cavity resonators; Indexes; Materials; Optical devices; Optical polarization; Oscillators; Radio frequency; High power semiconductor lasers; compound cavity effects; laser theory; master oscillator power amplifier; multimode dynamics; thermal effects;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2015.2413408