Green monolithic II–VI vertical‐cavity surface‐emitting laser operating at room temperature | Zendy

Kruse C. | Zendy; Ulrich S. M. | Zendy; Alexe G. | Zendy; Roventa E. | Zendy; Kröger R. | Zendy; Brendemühl B. | Zendy; Michler P. | Zendy; Gutowski J. | Zendy; Hommel D. | Zendy

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Green monolithic II–VI vertical‐cavity surface‐emitting laser operating at room temperature

Author(s) -

Kruse C.,

Ulrich S. M.,

Alexe G.,

Roventa E.,

Kröger R.,

Brendemühl B.,

Michler P.,

Gutowski J.,

Hommel D.

Publication year - 2004

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.200304126

Subject(s) - vertical cavity surface emitting laser , materials science , laser , lasing threshold , refractive index , distributed bragg reflector , optoelectronics , wavelength , optics , planar , distributed bragg reflector laser , physics , computer graphics (images) , computer science

The realization of a monolithic all II–VI‐based vertical cavity surface emitting laser (VCSEL) for the green spectral region is reported. Optically pumped lasing operation was achieved up to room temperature using a planar VCSEL structure. Taking advantage of distributed Bragg‐reflectors based on MgS/Zn(Cd)Se superlattices as the low‐refractive index material and ZnS 0.06 Se 0.94 layers as the high‐index material with a refractive index contrast of Δn = 0.6, a quality factor exceeding Q = 2000 is reached by using only 18 Bragg periods for the bottom DBR and 15 Bragg periods for the top DBR. The threshold power density is 0.32 MW/cm 2 at a temperature of 10 K (emission wavelength 498.5 nm) and 1.9 MW/cm 2 at room temperature (emission wavelength 502.3 nm). (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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