Multimode interference bistable laser diode

被引：45
作者：
Takenaka, M [1 ]
Nakano, Y
机构：
[1] Univ Tokyo, Adv Sci & Technol Res Ctr, Tokyo 1138656, Japan
[2] Univ Tokyo, Adv Sci & Technol Res Ctr, Tokyo 1538904, Japan
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 2003年 / 15卷 / 08期
关键词：
beam propagation method (BPM); bistable laser diode (BLD); flip-flop; gain saturation; multimode interference (MMI) coupler; optical memory; two-mode bistability;
D O I：
10.1109/LPT.2003.815361
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：
We propose a novel bistable laser diode (BLD) with active multimode interference (MMI) cavity. Bistable switching can be realized between two cross-coupled modes by means of gain saturation. Static characteristics of the multimode interference (MMI)-BLD are analyzed using a finite-difference beam propagation method. The photon-carrier interactions are calculated using the carrier-rate equation. This model gives accurate distributions of photon and carrier densities, optical gain, and refractive index inside the cavity. We predict that the MMI-BLD shows bistable switching between the two cross-coupled modes by light injection, therefore allowing it to be used as all-optical flip-flop or optical memory.
引用
收藏
页码：1035 / 1037
页数：3
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