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학술지 Demonstration of CSRZ Signal Generator Using Single-Stage Mach-Zehnder Modulator and Wideband CMOS Signal Mixer
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저자
강세경, 이동수, 조현우, 고제수
발행일
200804
출처
ETRI Journal, v.30 no.2, pp.249-254
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.08.1107.0029
협약과제
07MT2400, OTH기반 40G급 다중서비스 전송 기술개발, 고제수
초록
In this paper, we demonstrate an electrically band-limited carrier-suppressed return-to-zero (EB-CSRZ) signal generator operating up to a 10 Gbps data rate comprising a single-stage Mach-Zehnder modulator and a wideband signal mixer. The wideband signal mixer comprises inverter stages, a mixing stage, and a gain amplifier. It is implemented by using a 0.13 μm CMOS technology. Its transmission response shows a frequency range from DC to 6.4 GHz, and the isolation response between data and clock signals is about 21 dB at 6.4 GHz. Experimental results show optical spectral narrowing due to incorporating an electrical band-limiting filter and some waveform distortion due to bandwidth limitation by the filter. At 10 Gbps transmission, the chromatic dispersion tolerance of the EB-CSRZ signal is better than that of NRZ-modulated signal in single-mode fiber.
키워드
CMOS integrated circuit, CSRZ, Modulation format, Optical transmitter
KSP 제안 키워드
Band-limiting, Bandwidth limitation, CMOS Technology, CMOS integrated circuit, Carrier-suppressed return-to-zero(CSRZ), Chromatic dispersion(CD), Dispersion tolerance, Frequency Range, Mach-Zehnder(MZ), Modulated signal, Modulation format