$cavitygainedge

出自 DDCC TCAD TOOL Manual
於 2018年9月11日 (二) 11:27 由 Yrwu (對話 | 貢獻) 所做的修訂 (已建立頁面,內容為 "$cavitygainedge command is used to help to calculate the cavity gain in the end of gain calculation. <br> The input format is <br> $cavitygainedge R1 R2 cavity...")

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$cavitygainedge command is used to help to calculate the cavity gain in the end of gain calculation.
The input format is

$cavitygainedge
R1  R2  cavity-Length

After obtaining the intrinsic gain of laser diode structure. The program calculate the optical mode and also calculate the
\Gamma in each ddcc layer. Ideally, the cavity can be calculated by

\sum \Gamma_{QW} \times gain. 

Effective absorption loss can be calculated by

 \alpha_eff= \Gamma_{i,loss layer} \times \alpha_{i} . 

By the formula, can know that to obtain the gain

\sum \Gamma_{QW} \times gain > .