论文信息 - Single-spatial-mode semiconductor VCSELs with a nonplanar upper dielectric DBR

Single-spatial-mode semiconductor VCSELs with a nonplanar upper dielectric DBR

Single-spatial-mode semiconductor vertical-cavity surface-emitting lasers (VCSELs) with a non-planar upper (output) dielectric distributed Bragg reflector (DBR) for the 850 nm spectral region are fabricated. The suggested design provides stable single-mode generation in the entire range of working currents, limited by overheating of the active region. Devices with intracavity contacts and a comparatively large current-aperture diameter (5–6 μm) exhibit single-mode lasing at a wavelength of 840–845 nm in the continuous-wave mode at room temperature with threshold currents of 1.2–1.3 mA, a differential efficiency of 0.5–0.55 mW mA−1, and anoutput power of up to 2 mW.

[1] Martin Grabherr,et al. High-power selectively oxidized vertical-cavity surface-emitting lasers , 1996, Summaries of papers presented at the Conference on Lasers and Electro-Optics.

[2] Roy Szweda. VCSEL applications diversify as technology matures , 2006 .

[3] B. C. Koh,et al. Microlensed vertical-cavity surface-emitting laser for stable single fundamental mode operation , 2002 .

[4] A. P. Vasil’ev,et al. Design and fabrication technology for arrays for vertical-cavity surface-emitting lasers , 2005 .

[5] P. Kner,et al. Sub-mA threshold 1.5-μm VCSELs with epitaxial and dielectric DBR mirrors , 2003, IEEE Photonics Technology Letters.

[6] Larry A. Coldren,et al. Vertical-Cavity Surface-Emitting Lasers , 2001 .

[7] D. Bimberg,et al. 850 nm optical components for 25 Gb/s optical fiber data communication links over 100 m at 85°C , 2011, 2011 Asia Communications and Photonics Conference and Exhibition (ACP).

[8] D. Vacar,et al. Manufacturable Photonic Crystal Single-Mode and Fluidic Vertical-Cavity Surface-Emitting Lasers , 2008, IEEE Journal of Selected Topics in Quantum Electronics.

[9] J. Gustavsson,et al. Single fundamental-mode output power exceeding 6 mW from VCSELs with a shallow surface relief , 2004, IEEE Photonics Technology Letters.