کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
734279 | 893408 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fast frequency modulation optical code division multiple access communication system Fast frequency modulation optical code division multiple access communication system](/preview/png/734279.png)
An optical fast frequency modulation code division multiple access communication system is proposed. In this system, an electrically controlled tunable optical filter (TOF) is used to encode the modulated broadband light source. The code depends on the function set to the controller. Two-dimensional code named functional code is also proposed based on a shifted sine function. The function defines the dynamic coding pattern of the central wavelength of the transmitted narrowband optical signal. Thus, the system will allow for an easy reconfiguration of the transmitter without the need for sophisticated encoder. At the receiver, a synchronized TOF with the same function is used as a decoder. The performance of this system is shown to be better compared with a fast frequency hopping and a spectral amplitude coding systems.
Journal: Optics & Laser Technology - Volume 39, Issue 3, April 2007, Pages 605–609