title: Low-cost coherent receiver for long-reach optical access network using single-ended detection.
abstract: A low-cost coherent receiver using two 2×3 optical hybrids and single-ended detection is proposed for long-reach optical access network. This structure can detect the two polarization components of polarization division multiplexing (PDM) signals. Polarization de-multiplexing and signal-to-signal beat interference (SSBI) cancellation are realized by using only three photodiodes. Simulation results for 40 Gb/s PDM-OFDM transmissions indicate that the low-cost coherent receiver has 3.2 dB optical signal-to-noise ratio difference compared with the theoretical value.
authors.forename: Xuebing
authors.initials: X
authors.lastname: Zhang
authors.forename: Zhaohui
authors.initials: Z
authors.lastname: Li
authors.forename: Jianping
authors.initials: J
authors.lastname: Li
authors.forename: Changyuan
authors.initials: C
authors.lastname: Yu
authors.forename: Alan Pak Tao
authors.initials: AP
authors.lastname: Lau
authors.forename: Chao
authors.initials: C
authors.lastname: Lu