摘要
We report the fabrication and the performance of 1.55 μm InGaAsP/InP complex-coupled distributed feedback lasers with p-InGaAs absorptive grating. With an estimated coupling strength of 1.7, the single mode yield of devices with side mode suppression ratio larger than 30 dB is higher than 70%, and a side mode suppression ratio as high as 48 dB for a laser operating above twice threshold current is achieved. We have verified that the presence of loss-coupling can eliminate the mode degeneracy effectively, and the associated self-pulsation phenomenon can be overcome with reduced duty factor of the absorptive grating.
原文 | 英語 |
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頁(從 - 到) | 61-67 |
頁數 | 7 |
期刊 | Journal of the Chinese Institute of Electrical Engineering, Transactions of the Chinese Institute of Engineers, Series E/Chung KuoTien Chi Kung Chieng Hsueh K'an |
卷 | 2 |
發行號 | 1 |
出版狀態 | 已出版 - 02 1995 |
對外發佈 | 是 |