A Construction Scheme of Next Generation Wire Communication System by using Long-reach WDM-PON

Kim, Min-Hwan; Lee, Sang-Mook; Lee, Chang-Hee

Journal of the Korea Institute of Military Science and Technology 2007;10(2):90-99.

Min-Hwan Kim, Sang-Mook Lee, Chang-Hee Lee

KAIST

장거리 전송 파장분할 다중방식 수동형 광가입자망을 이용한 차세대 국방 유선통신체계 구축방안

김민환, 이상묵, 이창희

한국과학기술원

Abstract

We demonstrate an 80km-reach 64-channel DWDM-PON based on wavelength-locked F-P LDs by changing the position of the C-band BLS for upstream channels from the CO to the RN. It mitigates the necessity of the high power C-band BLS and its handling problems. It also reduces back scattering induced penalty. We obtained less than $10^{-6}$ PLRs in all 128channels through 80km SMF. We also demonstrate a 240km-reach DWDM-PON based on wavelength-locked F-P LDs by adding a bidirectional erbium-doped fiber amplifier(EDFA). We show packet-loss-free transmission in all 128channels at 125 Mb/s per channel over 240km SMF We report the detuning effect of arrayed waveguide gratings(AWGs) and crosstalk effect in the implemented system. We Propose an architecture of a next generation defense wire communication system with the demonstrated long-reach DWDM-PON.

Key Words: Wavelength Division Multiplexing, Passive Optical Network, Long-Reach Transmission