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Characterization of the train-average time-frequency parameters inherent in the low-power picosecond optical pulses generated by the actively mode-locked semiconductor laser with an external single-mode fiber cavity |
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| Authors: | Alexandre S Shcherbakov AYu Kosarsky Pedro Moreno Zarate Joaquin Campos Acosta Yurij V Il’in Il’ya S Tarasov |
| Institution: | a Department of Optics, National Institute for Astrophysics, Optics, and Electronics (INAOE), A.P. 51 and 216, Puebla, Pue. 72000, Mexico b LLC Petro, Peterhoff Chausse 71, Saint-Petersburg 198206, Russian Federation c Department of Metrology, Institute for Applied Physics (IFA-CSIC), Serrano 144, Madrid 28006, Spain d A.F.Ioffe Physical-Technical Institute of the Russian Academy of Sciences, Polytechnicheskaya St. 26, Saint-Petersburg 194021, Russian Federation |
| Abstract: | The specific approach to characterizing the train-average parameters of low-power picosecond optical pulses with the frequency chirp, arranged in high-repetition-frequency trains, in both time and frequency domains is elaborated for the important case when the semiconductor laser is matched by an external single-mode fiber cavity and operates in the active mode-locking regime. This approach involves the joint Wigner time-frequency distributions, which can be created for those pulses due to exploitation of a novel interferometric technique. Practically, the InGaAsP/InP-heterolaser generating at the wavelength 1320 nm was used during the experiments carried out and an opportunity of reconstructing the corresponding joint Wigner time-frequency distributions was successfully demonstrated. |
| Keywords: | Semiconductor laser Active mode-locking Wigner time-frequency distribution Train-average parameters |
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