Title :
100 Gb/s Intensity Modulation and Direct Detection
Author :
Cartledge, J.C. ; Karar, A.S.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, ON, Canada
Abstract :
Recent advances in short reach 100 Gb/s intensity modulation and directed detection systems are briefly reviewed. As an illustrative example of using digital signal processing enabled transmitters and receivers to allow relatively modest symbol rates, the generation and detection of 112 Gb/s 16-QAM half-cycle Nyquist subcarrier modulation are considered using dual-polarization, single-carrier and single-polarization, dual-carrier implementations. High bandwidth directly modulated passive feedback lasers are used to generate the optical signals and pre-amplified receivers are used to detect the received signals in a back-to-back system and after transmission over 4 km of single-mode fiber.
Keywords :
fibre lasers; intensity modulation; optical receivers; optical transmitters; quadrature amplitude modulation; 16-QAM half-cycle Nyquist subcarrier modulation; bit rate 100 Gbit/s; bit rate 112 Gbit/s; digital signal processing; directed detection system; dual-carrier implementation; dual-polarization implementation; intensity modulation; passive feedback lasers; preamplified receivers; single-carrier implementation; single-mode fiber; single-polarization implementation; transmitters; Optical attenuators; Optical feedback; Optical modulation; Optical receivers; Optical transmitters; Direct detection; intensity modulation; subcarrier modulation;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2014.2314611
