Inverse scattering approach to multiwavelength Fabry-Perot laser design

Journal Article · Fri Dec 15 04:00:00 EST 2006 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.74.063814· OSTI ID:20976557

O'Brien, S; Osborne, S; Buckley, K; Fehse, R; Amann, A; O'Reilly, E P ^[1]; Barry, L P; Anandarajah, P ^[2]; Patchell, J; O'Gorman, J ^[3]

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1. Tyndall National Institute, University College, Lee Maltings, Cork (Ireland)
2. RINCE, School of Electronic Engineering, Dublin City University, Dublin 9 (Ireland)
3. Eblana Photonics, Trinity College Enterprise Centre, Pearse Street, Dublin 2 (Ireland)

A class of multiwavelength Fabry-Perot lasers is introduced where the spectrum is tailored through a patterning of the cavity effective index. The cavity geometry is obtained using an inverse scattering approach and can be designed such that the spacing of discrete Fabry-Perot lasing modes is limited only by the bandwidth of the inverted gain medium. A specific two-color semiconductor laser with a mode spacing in the THz region is designed, and measurements are presented demonstrating the simultaneous oscillation of the two wavelengths. The nonperiodic effective index profile of the particular two-color device considered is shown to be related to a Moire or superstructure grating.

• OSTI ID: 20976557
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 6 Vol. 74; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
INVERSE SCATTERING PROBLEM
LASER CAVITIES
OSCILLATIONS
SEMICONDUCTOR LASERS
SPECTRA
WAVELENGTHS