Narrow-linewidth 1.5 μm quantum dot distributed feedback lasers
Becker A, Sichkovskyi V, Bjelica M, Eyal O, Baum P, Rippien A, Schnabel F, Witzigmann B, Eisenstein G, Reithmaier JP (2016)
Publication Type: Conference contribution
Publication year: 2016
Journal
Publisher: SPIE
Book Volume: 9767
Conference Proceedings Title: Proceedings of SPIE - The International Society for Optical Engineering
Event location: San Francisco, CA
ISBN: 9781510600027
DOI: 10.1117/12.2209088
Abstract
The ever-growing need for higher data rates is a driving force for the implementation of higher order coherent communication formats. A key element in coherent detection is the local oscillator (LO) of the decoding unit. This device has to provide coherent light with a narrow linewidth in order to distinguish between different phase and amplitude states of the incoming signal. As predicted by theory, a drastic linewidth reduction is expected from quantum dot (QD) laser materials by the quasi zero-dimensional nature of the gain function. The impact of different gain materials consisting of different numbers of QD layers on the linewidth of distributed feedback (DFB) lasers was investigated and shows an unambiguous dependence on the layer design. Intrinsic linewidths as low as 110 kHz could be determined.
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Germany (DE)
Israel (IL)How to cite
APA:
Becker, A., Sichkovskyi, V., Bjelica, M., Eyal, O., Baum, P., Rippien, A.,... Reithmaier, J.P. (2016). Narrow-linewidth 1.5 μm quantum dot distributed feedback lasers. In Alexey A. Belyanin, Peter M. Smowton (Eds.), Proceedings of SPIE - The International Society for Optical Engineering. San Francisco, CA, US: SPIE.
MLA:
Becker, Annette, et al. "Narrow-linewidth 1.5 μm quantum dot distributed feedback lasers." Proceedings of the Novel In-Plane Semiconductor Lasers XV, San Francisco, CA Ed. Alexey A. Belyanin, Peter M. Smowton, SPIE, 2016.
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