Optical in-well pumping of a vertical-external-cavity surface-emitting laser

Autor:	Marc Schmid, Allister I. Ferguson, Sarah Benchabane, Firuz Torabi-Goudarzi, Richard H. Abram, Erling Riis
Rok vydání:	2004
Předmět:	Active laser medium Materials science Physics and Astronomy (miscellaneous) business.industry Slope efficiency Gain Physics::Optics Laser pumping Laser Self-pulsation Round-trip gain law.invention Optical pumping Optics law Optoelectronics business
Zdroj:	Applied Physics Letters. 84:4860-4862
ISSN:	1077-3118 0003-6951
DOI:	10.1063/1.1760887
Popis:	A scheme is demonstrated for optical pumping of a vertical-external-cavity surface-emitting laser. The scheme is based on absorption of the pump light within the wells of the multiple-quantum-well gain structure rather than the conventional approach of absorption of a shorter wavelength in the barrier regions. The operation of a laser around 850 nm pumped by an 808 nm source demonstrates the potential of this technique for allowing operation at a significantly shorter range of wavelengths for these devices in general and specific application of high-brightness pump lasers for devices in this spectral region. A further advantage is the smaller quantum defect which results in reduced heating of the gain medium. These advantages are achieved while maintaining a slope efficiency of up to 18%, which is comparable to results obtained with a traditional pumping scheme with a similar gain medium.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c96717fc55ab6ef900a4f96e4b692b6e https://doi.org/10.1063/1.1760887 Zobrazit plný text záznamu