상세정보
학술지
WPON 응용을 위한 고속 CMOS 어레이 광 트랜스미터
- 발행일
- 201306
- 출처
- 한국통신학회논문지 B : 네트워크 및 서비스, v.38B no.6, pp.427-434
- ISSN
- 1226-4717
- 출판사
- 한국통신학회 (KICS)
- 협약과제
- 13PI1600, (통합)차세대 응용플랫폼을 위한 Port agnostic 요소 기술 및 보급형 대용량 NG-PON2 핵심기술 개발, 이상수
- 초록
- In this paper, the design and layout of a 2.5 Gbps arrayed VCSEL driver for optical transceiver having arrayed multi-channel of integrating module is confirmed. In this paper, a 4 channel 2.5 Gbps VCSEL (vertical cavity surface emitting laser) driver array with automatic optical power control is implemented using 0.18 μm CMOS process technology that drives a 1550 μm high speed VCSEL used in optical transceiver. To enhance the bandwidth of the optical transmitter, active feedback amplifier with negative capacitance compensation is exploited. We report a distinct improvement in bandwidth, voltage gain and operation stability at 2.5Gbps data rate in comparison with existing topology. The 4-CH chip consumes only 140 mW of DC power at a single 1.8V supply under the maximum modulation and bias currents, and occupies the die area of 850 μm × 1,690 μm excluding bonding pads.
- KSP 제안 키워드
- AND operation, CMOS process technology, Capacitance compensation, Dc power, Design and layout, Feedback amplifier, High Speed, Negative capacitance, Operation stability, Optical Transceiver, Optical power