Coherent WDM-PON using heterodyne detection with transmitter-side polarization diversity

IEICE Electronics Express

Hiroaki Sanjoh²  Naoya Sakurai³  Satoshi Narikawa¹ 

[1] NTT Access Network Service Systems Labolatories, NTT Corporation;NTT Photonics Labolatories, NTT Corporation;NTT Advanced Technology Corporation

关键词: wavelength division multiplexing;    passive optical network;    optical heterodyne detection;    polarization diversity;   

DOI  :  10.1587/elex.7.1195

学科分类：电子、光学、磁材料

来源: Denshi Jouhou Tsuushin Gakkai

【 摘 要 】

References(6)Cited-By(1)Coherent detection can improve the receiver sensitivity and spectral density, so it has become a key technology in realizing the advanced access network. Adding optical heterodyne detection to the wavelength division multiplexing passive optical network (WDM-PON) makes it possible to increase the number of accommodated optical network units (ONUs) and the transmission distance.In this letter, we propose and demonstrate a heterodyne detection scheme that realizes polarization diversity with one photo detector and one receiving circuit by centralizing diversity devices at the transmitter. We experimentally achieved the cost-effective polarization diversity technique which receiver sensitivity fluctuation was 1.2dB, and the power penalty was less than 0.8dB after transmission through 10km single-mode fiber.

【 授权许可】

Unknown