상세정보
학술지
Electrically Band-Limited CSRZ-DPSK Signal With a Simple Transmitter Configuration and Reduced Linear Crosstalk in High Spectral Efficiency DWDM Systems
- 저자
- 이동수, 이만섭, Yang Jing Wen, A. Nirmalathas
- 발행일
- 200409
- 출처
- IEEE Photonics Technology Letters, v.16 no.9, pp.2135-2137
- ISSN
- 1041-1135
- 출판사
- IEEE
- 협약과제
- 04MT1300, 40Gb/s급 시분할다중 광전송 기술, 고제수
- 초록
- In this letter, we propose a novel transmitter configuration for generating electrically band-limited (EB) carrier-suppressed return-to-zero (CSRZ) differential phase-shift-keyed (DPSK) signals, which requires only a single-stage Mach-Zehnder modulator in conjunction with an electrical band-limiting low-pass filter and electrical mixer. The proposed scheme is cost-effective due to the simple configuration. In addition, when applied to dense wavelength-division-multiplexing systems with high spectral efficiency, the EB-CSRZ-DPSK signal exhibits reduced linear crosstalk, increased dispersion tolerance, and no additional nonlinearity penalty in comparison to the conventional CSRZ-DPSK signal. © 2004 IEEE.
- KSP 제안 키워드
- Band-limiting, CSRZ-DPSK, Carrier-suppressed return-to-zero(CSRZ), DWDM systems, Dispersion tolerance, High spectral efficiency, Linear crosstalk, Mach-Zehnder(MZ), Phase shift, Spectral efficiency(SE), Wavelength Division Multiplexing(WDM)