Abstract

A novel wavelength reuse scheme based on phase-modulation to intensity-modulation (PM-IM) conversion and destructive interferencing using a polarization modulator (PolM) and a fiber Bragg grating (FBG) in an ultra-wideband (UWB) over fiber (UWBoF) system is proposed and experimentally demonstrated. In the proposed scheme, a PolM and an FBG in the central station (CS) are used to generate intensity-modulated impulse UWB signal based on PM-IM conversion. The downstream UWB signal is sent to a base station (BS) over an optical fiber. At the BS, when the principle axis of the polarizer is aligned with one of the two orthogonal states of polarization (SOPs), the downstream UWB signal is received and detected. When the principle axis of the polarizer is oriented at a special angle to one of the two orthogonal SOPs, a clear optical carrier without intensity modulation is generated, which is then reused for upstream UWB data transmission. A theoretical analysis is performed which is verified by an experiment. A bidirectional point-to-point transmission of 1.25 Gb/s UWB signal over 25-km single-mode fiber (SMF) using a single light source from the CS is demonstrated. The receiver sensitivity and the BER performance for both downstream and upstream transmissions are measured.

© 2013 IEEE

Wavelength reuse in a bidirectional UWB over fiber system

Tong Shao and Jianping Yao
Opt. Express 21(10) 11921-11927 (2013)

Implementation of wavelength reusing upstream service based on distributed intensity conversion in ultrawideband-over-fiber system

Jianyu Zheng, Hui Wang, Lixian Wang, Ninghua Zhu, Jianguo Liu, and Sunlong Wang
Opt. Lett. 38(7) 1167-1169 (2013)

Bidirectional UWB over fiber for WDM-PON system

Mohammadreza Malekizandi, Arkadi Chipouline, and Franko Küppers
Opt. Express 25(6) 6840-6850 (2017)

High dynamic range and wavelength-reused bidirectional radio-over-fiber link

Nianqiang Li and Jianping Yao
Opt. Lett. 44(6) 1331-1334 (2019)

Bidirectional multiband radio-over-fiber system based on polarization multiplexing and wavelength reuse

Ting Su, Jianyu Zheng, Zhongle Wu, Min Zhang, Xue Chen, and Gee-Kung Chang
Opt. Express 23(8) 9772-9776 (2015)