An optical sampled subcarrier multiplexing scheme for nonlinear distortion reduction in lightwave CATV networks

نویسندگان

  • Wai Hung
  • Man-Hong Cheung
  • Siu-Ting Ho
  • Lian-Kuan Chen
  • Chun-Kit Chan
چکیده

This paper proposes and demonstrates a nonlinear distortion reduction scheme for subcarrier multiplexed optical CATV networks based on optical sampling and optical time-division multiplexing (OTDM) techniques. Inter-modulation distortion is reduced by about 10 dB for a 40-channel system. The proposed optical sampling and OTDM process is shown to induce negligible additional distortion.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Radio over Fiber for Broadband Wireless Access

Fiber based wireless access systems support high-speed multimedia in real-time by combining the capacity of optical fiber with the flexibility of wireless networks. For example, single subcarrier multiplexed radio-over-fiber (ROF) link can support wireless LAN, cellular radio, and CATV simultaneously. We investigate various issues in this scenario in order to provide a cost-effective, high perf...

متن کامل

Methods for Crosstalk Measurement and Reduction in Dense WDM Systems - Lightwave Technology, Journal of

We propose a scheme for the monitoring and reduction of crosstalk arising from the limited stop-band rejection of optical bandpass filters in dense WDM systems. The optical carrier at each wavelength is modulated with a subcarrier tone unique to that wavelength. The level of crosstalk from a given channel cain be determined by measuring the power of the corresponding; tone. Crosstalk from other...

متن کامل

Improvement Scheme for Directly Modulated Fiber Optical CATV System Performances

In an optical CATV system, the signal was directly or externally modulated with lightwave before communicates. Directly modulating signal with LD is an economic method, but the transmission distance and performance are significantly limited by laser chirping issues. In another hand, the externally modulation schemes have been proofed to provide better outcomes by eliminating the laser chirping ...

متن کامل

Image Compression by Edge Pattern Learning Using Multilayer

1 AKIBA, s., GOTO, K., YAMAMOTO, s., and WAKABAYASHI, H.: ‘Recent progress of transoceanic optical amplifier transmission system’. ECOC ’92, Invited papers, September 1992, pp. 719-726 2 IEEE standard 802.6, DQDB subnetwork of a MAN, July 1991 3 KOA& K. T., and OISHANSKY, R.: ‘Non-regenerative photonic dual bus with optical amplifiers’, to be published in I E E E Photonics Technol. Lett. 4 GILE...

متن کامل

Research on modified selected mapping technique for PAPR reduction and reception performance improvement in 8QAM-OFDM optical access systems

Background: Orthogonal frequency division multiplexing has been regarded as one of the promising technologies for the optical access systems application. However, high peak-to-average power ratio will cause the signal distortion and enable the used amplifier to operate in nonlinear section. Methods: In this paper, a modified selected mapping technique is introduced for reducing the peak-to-aver...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002