Effect of frequency detuning on Brillouin lasing in microcavities
D. A. Korobkoab, I. O. Zolotovskiiab, V. V. Svetukhinb, A. V. Zhukovab, A. N. Fominab, K. V. Borisovaab, A. A. Fotiadiabc
a Ulyanovsk State University
b SPC "Technological Center" Moscow, Zelenograd
c University of Mons, Belgium
We have theoretically investigated Brillouin lasing in microcavities in the case when the Brillouin shift and the intermode spacing of the microcavity do not coincide. It is shown that, despite the rise of the lasing threshold, a significant increase in the Brillouin signal intensity can be achieved in this case compared to the resonance one. A necessary condition for this effect is to select an optimal value of detuning of the pump radiation frequency from the frequency of the corresponding microcavity mode. The result of increasing the lasing threshold is also a narrowing of the Brillouin signal lasing range in the nonresonant case, which leads to a decrease in the signal noise level provided the detuning value is optimally selected. Analytical calculations are confirmed by the results of numerical modelling.
narrow-band lasers, SBS lasers, microcavities, Brillouin shift.
PDF file (1128 kB)
First page: PDF file
Quantum Electronics, 2020, 50:3, 284–290
D. A. Korobko, I. O. Zolotovskii, V. V. Svetukhin, A. V. Zhukov, A. N. Fomin, K. V. Borisova, A. A. Fotiadi, “Effect of frequency detuning on Brillouin lasing in microcavities”, Kvantovaya Elektronika, 50:3 (2020), 284–290 [Quantum Electron., 50:3 (2020), 284–290]
Citing articles on Google Scholar:
Related articles on Google Scholar:
|Number of views:|