Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1541366 | Optics Communications | 2006 | 7 Pages |
Abstract
Tunable dual-wavelength operation of a laser diode has been achieved using a dual-period holographic element. The holographic element was positioned in Littrow configuration in an external cavity. The design of this holographic element was based on the superposition of a constant-period grating and a variable-period grating on the same location in a photoresist. We observed simultaneous emission at two wavelengths from a visible semiconductor laser operated with this holographic element. The spectral separation of the dual-wavelength output was varied from 0.76 to 6.27Â nm by a simple translation of the holographic element.
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Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Véronique Zambon, Michel Piché, Nathalie McCarthy,