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http://dx.doi.org/10.3807/KJOP.2003.14.3.298

Single mode yield analysis of index-coupled DFB lasers above threshold for various facet reflectivity combinations  

김상택 (숭실대학교 정보통신전자공학부)
전재두 (숭실대학교 정보통신전자공학부)
김부균 (숭실대학교 정보통신전자공학부)
Publication Information
Korean Journal of Optics and Photonics / v.14, no.3, 2003 , pp. 298-305 More about this Journal
Abstract
We have calculated the single mode yield of index-coupled (IC) DFB lasers above threshold for several kL, and facet reflectivity combinations, and investigated the correlation between those results and the single mode yield as a function of f number at the threshold. As a result, there is little correlation between the single mode yield above threshold and the single mode yield as a function of f number at the threshold. The single mode yields above threshold for kL of 0.8 and 1.25 is larger than those for kL, of 2 and 3 due to the spatial hole burning effect. Also, we have investigated the effect of the reflectivity of the AR facet on the single mode yield for AR-HR and AR-CL combinations. For AR-HR combinations, the single mode yield increases as the reflectivity of the AR facet decreases. However, for AR-CL combinations, the reflectivity of the AR facet for the largest single mode yield exists. In the single mode yield calculations for IC DFB lasers in this paper, the single mode yield for kL of 0.8 with AR(1％)-HR combination is largest above threshold.
Keywords
IC DFB Lasers; single mode yield;
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