کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7929306 | 1512567 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Development of SAC-OCDMA in FSO with multi-wavelength laser source
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Development of SAC-OCDMA in FSO with multi-wavelength laser source Development of SAC-OCDMA in FSO with multi-wavelength laser source](/preview/png/7929306.png)
چکیده انگلیسی
We propose and demonstrate a free space optical network, based on spectral amplitude coding optical code division multiple access (SAC-OCDMA) with a multi-wavelength laser source. A detailed theoretical analysis that represents the characteristics of SAC-OCDMA system was developed. In addition to the impact of turbulence, influences of several system noises such as optical beat interference (OBI), relative intensity noise, and receiver noises, have been studied. From the numerical results, it was found that the influence of OBI is more dominant, especially at higher received power. Two different codes, namely, modified quadratic congruence and modified double weight, are then compared with the latter which provides better performance. A transmission distance of 2.6Â km with 10 users and an 8Â cm aperture diameter is advisable whenever the turbulence is moderate. These results can be improved when a beam divergence smaller than 1Â mrad is utilized.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 356, 1 December 2015, Pages 282-289
Journal: Optics Communications - Volume 356, 1 December 2015, Pages 282-289
نویسندگان
Majid Moghaddasi, Ghazaleh Mamdoohi, Ahmad Shukri Muhammad Noor, Mohd Adzir Mahdi, Siti Barirah Ahmad Anas,