Research on Optical Chaos and it's Applications in Semiconductor Lasers with Phase-Conjugate Optical Feedback

光学混沌及其在相位共轭光反馈半导体激光器中的应用研究

• 批准号: 10650040
• 负责人: OHTSUBO Junji
• 金额: $ 2.56万
• 依托单位: Shizuoka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650040/
• 关键词: Semiconductor lasers; Optical Chaos; Phase-Conjugate Optics; Nonlinear Optical Dynamics; Laser Control; Chaos Synchronizaiton; 戻り光

A semiconductor laser is destabilized easily by a feedback from an external reflector and the performance of a system employing a semiconductor laser as a light source is much degraded in the presence of optical feedback to the laser. This instability is derived from the nonlinear dynamics involved in the system and is known as chaos in the system. In the meantime, a semiconductor laser is used as a light source for phase-conjugate optics. The effects of Phase-conjugate feedback to a semiconductor laser are very important since the reflected light by a phase-conjugate mirror is automatically fed back to the light source. However, a few researches have been done in this area. In this project, the dynamics of semiconductor lasers with phase-conjugate feedback have been extensively investigated and the differences between feedback from phase-conjugate and ordinary mirrors have been clarified. Applications of phase-conjugate feedback in semiconductor lasers have been also investigated. As a result, effective laser control and noise suppression have been attained by phase-conjugate feedback. Chaos synchronization for secure communications has been studied and it has been proved that semiconductor laser with phase-conjugate feedback can be used as a high performance chaos generating module for chaos communication systems.

半导体激光器通过外部反射器的反馈很容易稳定，并且在有光学反馈的情况下，采用半导体激光作为光源的系统的性能会大大降低。这种不稳定性源自系统中涉及的非线性动力学，被称为系统中的混乱。同时，将半导体激光用作相结合光学元件的光源。相结合的反馈对半导体激光器的影响非常重要，因为相结合镜的反射光自动回到光源中。但是，该领域已经进行了一些研究。在这个项目中，已经对具有相结合反馈的半导体激光器的动力学进行了广泛的研究，并且已经阐明了相合轭和普通镜的反馈之间的差异。还研究了相结合反馈在半导体激光器中的应用。结果，有效的激光控制和噪声抑制已通过相结合反馈获得。已经研究了用于安全通信的混乱同步，并已证明，具有相结合反馈的半导体激光器可以用作混乱通信系统的高性能混乱生成模块。

项目成果

大坪順次: "戻り光半導体レーザにおける光カオス"レーザ顕微鏡研究会第22回講演会論文集. 25-31 (1998)

Junji Otsubo：“返回光学半导体激光器中的光学混沌”激光显微镜研究组第 22 届会议论文集 25-31 (1998)。

Y. Takiguchi, H. Fujino, J. Ohtsubo: "Synchronization of Chaotic Oscillations of Compound Cavity Semiconductor Lasers in Low-Frequency Fluctuation Regime"Abstract ATR Workshop on Laser Chaos. 17 (1999)

Y. Takiguchi、H. Fujino、J. Ohtsubo：“低频波动状态下复合腔半导体激光器混沌振荡的同步”激光混沌抽象 ATR 研讨会。

A.Murakami, J.Ohtsubo: "Mode Selectivity in Multimode Semiconductor Lasers"Abstract ATR Workshop on Laser Chaos. 24 (1999)

A.Murakami、J.Ohtsubo：“多模半导体激光器中的模式选择性”激光混沌抽象 ATR 研讨会。

S-Y.Ye, J.Ohtsubo: "Suppress of Chaotic Oscillations in a Semiconductor Laser with Optical Feedback"Proc.JICAST'98/CPST'98. 218-221 (1998)

S-Y.Ye，J.Ohtsubo：“利用光学反馈抑制半导体激光器中的混沌振荡”Proc.JICAST98/CPST98。

J. Ohtsubo: "Feedback-Induced Chaos in Semiconductor Lasers"Abstract ATR Workshop on Laser Chaos. 3-4 (1998)

J. Ohtsubo：“半导体激光器中的反馈引起的混沌”激光混沌抽象 ATR 研讨会。