Paper
16 March 2016 Fabrication and characterization of broadband superluminescent diodes for 2 μm wavelength
Nouman Zia, Jukka Viheriälä, Riku Koskinen, Mervi Koskinen, Soile Suomalainen, Mircea Guina
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Abstract
Single-mode superluminescent diodes operating at 2 μm wavelength are reported. The structures are based on GaSb material systems and were fabricated by molecular beam epitaxy. Several waveguide designs have been implemented. A continuous-wave output power higher than 35 mW is demonstrated for a spectrum centered at around 1.92 μm. We show that the maximum output power of the devices is strongly linked to spectrum width. Device having low output power exhibit a wide spectrum with a full-width half-maximum (FWHM) as large as 209 nm, while devices with highest output power exhibit a narrower spectrum with about 61 nm FWHM.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Nouman Zia, Jukka Viheriälä, Riku Koskinen, Mervi Koskinen, Soile Suomalainen, and Mircea Guina "Fabrication and characterization of broadband superluminescent diodes for 2 μm wavelength", Proc. SPIE 9768, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XX, 97680Q (16 March 2016); https://doi.org/10.1117/12.2209720
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KEYWORDS
Waveguides

Superluminescent diodes

Gallium antimonide

Continuous wave operation

Reflectivity

Absorption

Antireflective coatings

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