title: Long-reach 10-Gb/s RSOA-based WDM PON employing QPSK signal and coherent receiver.
abstract: We demonstrate a long-reach wavelength-division-multiplexed passive optical network (WDM PON) operating at the symmetric rate of 10.3 Gb/s. For the cost-effectiveness, we realize the upstream transmission by utilizing directly-modulated TO-can packaged reflective semiconductor optical amplifiers (RSOAs) and digital coherent receivers. In addition, to overcome the limited modulation bandwidth of this TO-can packaged RSOA (~2.2 GHz) and operate it at 10.3 Gb/s, we utilize the quadrature phase shift keying (QPSK) format and the electronic phase equalization technique. The result shows that we can extend the maximum reach of the 10.3-Gb/s RSOA-based WDM PON to ~80 km without using any remote amplifiers.
authors: Department of Electrical Engineering, KAIST, 373-1 Guseong-dong, Yuseong-gu, Daejeon 305-701, South Korea. ychung@ee.kaist.ac.kr
authors: K Y
authors: KY
authors: Cho
authors: U H
authors: UH
authors: Hong
authors: S P
authors: SP
authors: Jung
authors: Y
authors: Y
authors: Takushima
authors: A
authors: A
authors: Agata
authors: T
authors: T
authors: Sano
authors: Y
authors: Y
authors: Horiuchi
authors: M
authors: M
authors: Suzuki
authors: Y C
authors: YC
authors: Chung