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Proceedings Paper

150nm continuous tuning of external cavity quantum-dot lasers operated below 90 mA
Author(s): Yu-Chen Chen; Gray Lin; Pei-Yin Su; Hsu-Chieh Cheng
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Paper Abstract

Low threshold and widely tunable InAs/InGaAs/GaAs quantum-dot external-cavity lasers are implemented with gratingcoupled Littrow configuration. Throughout the tuning range of 130 nm, from 1160 to 1290 nm, the threshold current density is less than 0.9 kA/cm2 and without noticeable threshold jump. For a shorter-cavity device, the injection current is kept at a record low value of 90 mA but the tuning range is further extended from 1143 to 1293 nm. We discuss the effect of cavity length on the tuning characteristics and propose the strategy for design and optimization of multilayer quantum-dot structure.

Paper Details

Date Published: 15 October 2012
PDF: 7 pages
Proc. SPIE 8497, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VI, 84970N (15 October 2012); doi: 10.1117/12.928905
Show Author Affiliations
Yu-Chen Chen, Union Optronics Corp. (Taiwan)
National Chiao Tung Univ. (Taiwan)
Gray Lin, Union Optronics Corp. (Taiwan)
Pei-Yin Su, Union Optronics Corp. (Taiwan)
Hsu-Chieh Cheng, Union Optronics Corp. (Taiwan)


Published in SPIE Proceedings Vol. 8497:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VI
Shizhuo Yin; Ruyan Guo, Editor(s)

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