Selective lasing in multimode periodic and non‐periodic nanopillar waveguides | Zendy

Zhukovsky Sergei V. | Zendy; Chigrin Dmitry N. | Zendy; Lavrinenko Andrei V. | Zendy; Kroha Johann | Zendy

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Selective lasing in multimode periodic and non‐periodic nanopillar waveguides

Author(s) -

Zhukovsky Sergei V.,

Chigrin Dmitry N.,

Lavrinenko Andrei V.,

Kroha Johann

Publication year - 2007

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200674508

Subject(s) - nanopillar , lasing threshold , multi mode optical fiber , materials science , optics , optoelectronics , physics , nanotechnology , optical fiber , nanostructure , wavelength

The lasing action in coupled multiple‐row periodic and fractal Cantor‐like nanopillar waveguides has been numerically investigated. It had been shown earlier [D. N. Chigrin et al., Opt. Express 12 , 617 (2004)] that such a system exhibits band splitting with distinct, straightforward and controllable supermode formation. In this paper we demonstrate that selective lasing into each of the supermodes is possible. The structure acts as a microlaser with selectable wavelength. Mode selection is achieved by means of coaxial injection seeding with a Gaussian signal with different transverse envelope. The proposed concept of switchable lasing is viewed as an alternative to conventional laser tuning by means of external cavity control. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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