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Título: | In situ measurements of the cavity length variation across the transverse section of broad area vertical-cavity surface-emitting lasers (VCSELs) |
Autor: | Barland, Stéphane; Marino, Francesco CSIC ORCID; Giudici, Massimo; Tredicce, Jorge R. CSIC; Balle, Salvador CSIC ORCID | Palabras clave: | Surface emitting lasers Laser cavity resonators [PACS] Laser resonators, cavities, amplifiers, arrays, and rings [PACS] Semiconductor lasers; laser diodes |
Fecha de publicación: | 22-sep-2003 | Editor: | American Institute of Physics | Citación: | Applied Physics Letters 83(12): 2303-2305 (2003) | Resumen: | We present a method to measure the cavity length variations of a broad-area vertical-cavity surface-emitting laser. The method is based on the observation of an inhomogeneous nonlinear response of the system under coherent optical injection. Due to the presence of a cavity resonance frequency gradient in the system, the boundary of a modulational instability manifests itself as a separation of the device in two distinct spatial regions. The observation of the position of this boundary depending on parameters reveals the degree of homogeneity of the sample and allows a direct measurement of the spatial variations of the cavity resonance frequency. | Descripción: | 3 pages, 3 figures.-- PACS nrs.: 42.60.Da, 42.55.Px. | Versión del editor: | http://dx.doi.org/10.1063/1.1608463 | URI: | http://hdl.handle.net/10261/15348 | DOI: | 10.1063/1.1608463 | ISSN: | 0003-6951 |
Aparece en las colecciones: | (IMEDEA) Artículos |
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