کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7932544 | 1512613 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Chaotic unpredictability properties of small network mutually-coupled laser diodes
ترجمه فارسی عنوان
خواص غیر قابل پیش بینی هرج و مرج دیودهای لیزری دو طرفه متصل به شبکه کوچک
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کلمات کلیدی
دیودهای لیزری، هرج و مرج نوری، آنتروپی تقاطع، کوپلینگ نوری، شبکه کوچک
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
The chaotic unpredictability properties of mutually-coupled laser diodes (LDs) are investigated numerically. The unpredictability degree is evaluated quantitatively via the permutation entropy (PE). The effects of coupling strength, frequency detuning, feedback strength, as well as time delays are considered. It is shown that, compared with the unidirectional coupling case, two unpredictability-enhanced chaotic signals can be simultaneously obtained for the mutual coupling case, and the parameters regions contributing to unpredictability-enhanced chaos are also broadened. Besides, the PE values for two mutually-coupled LDs are close to each other, with the exact relationship being related to frequency detuning, due to the leader-laggard relationship in terms of injection locking effect. We also consider small network of mutually-coupled LDs, where the effects of connection topologies and frequency detuning are mainly examined. The small network of mutually-coupled LDs can generate several independent unpredictability-enhanced chaotic signals in parallel, which is extremely useful to substantially increase the bit rate and improve the randomness of random number generators based on chaotic LDs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 311, 15 January 2013, Pages 294-300
Journal: Optics Communications - Volume 311, 15 January 2013, Pages 294-300
نویسندگان
Shuiying Xiang, Wei Pan, Nian Qiang Li, Li Yue Zhang, Hong Na Zhu,