Broadband superluminescent diodes with height-engineered InAs-GaAs quantum dots

被引:15
作者
Haffouz, S. [1 ]
Rodermans, M. [1 ]
Barrios, P. J. [1 ]
Lapointe, J. [1 ]
Raymond, S. [1 ]
Lu, Z. [1 ]
Poitras, D. [1 ]
机构
[1] Natl Res Council Canada, Inst Microstruct Sci, Ottawa, ON, Canada
关键词
BANDWIDTH;
D O I
10.1049/el.2010.0508
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Ultra-wide bandwidth superluminescent diodes (SLDs) using multiple layers of InAs-GaAs quantum dots (QDs) with engineered height are realised. A tilted and tapered active region is used to reduce the effective reflectivity from the facets. A 3 dB emission bandwidth up to 140 nm centred at 1100 nm is achieved at a continuous-wave drive-current of 600 mA. It is shown that varying the height of the dots from one layer of dots to another within the active region considerably broadens the emission spectrum of the QD-SLDs compared to those made of similar layers of inhomogeneous QDs.
引用
收藏
页码:1144 / 1145
页数:2
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