Exploring the influence of high order transverse modes on the temporal dynamics in an optically pumped mode-locked semiconductor disk laser | Zendy

C. H. Tsou | Zendy; H. C. Liang | Zendy; C. P. Wen | Zendy; K. W. Su | Zendy; KuanChih Huang | Zendy; Y. F. Chen | Zendy

Open Access

Exploring the influence of high order transverse modes on the temporal dynamics in an optically pumped mode-locked semiconductor disk laser

Author(s) -

C. H. Tsou,

H. C. Liang,

C. P. Wen,

K. W. Su,

KuanChih Huang,

Y. F. Chen

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.016339

Subject(s) - transverse plane , optics , transverse mode , laser , excited state , physics , excitation , semiconductor laser theory , mode locking , atomic physics , structural engineering , quantum mechanics , engineering

We quantitatively investigate the influence of high-order transverse modes on the self-mode locking (SML) in an optically pumped semiconductor laser (OPSL) with a nearly hemispherical cavity. A physical aperture is inserted into the cavity to manipulate the excitation of high-order transverse modes. Experimental measurements reveal that the laser is operated in a well-behaved SML state with the existence of the TEM(0,0) mode and the first high-order transverse mode. While more high-order transverse modes are excited, it is found that the pulse train is modulated by more beating frequencies of transverse modes. The temporal behavior becomes the random dynamics when too many high-order transverse modes are excited. We observe that the temporal trace exhibits an intermittent mode-locked state in the absence of high-order transverse modes.

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