Fiber link loss monitoring scheme in bidirectional WDM transmission using ASE-injected FP-LD

被引：47

作者：

Lee, K ^{[1
]}

Kang, SB

Lim, DS

Lee, HK

Sorin, WV

机构：

[1] Novera Opt Korea Inc, Taejon 305811, South Korea

[2] Chungbuk Natl Univ, Coll Med, Biomed Engn Lab, Chungbuk 361763, South Korea

[3] Novera Opt Inc, Palo Alto, CA 94306 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 1-4期

关键词：

access network; fiber link monitoring; fiber-to-the-home (FTTH); passive optical network (PON); wavelength-division multiplexed (WDM);

D O I：

10.1109/LPT.2005.863991

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We propose and demonstrate a novel fiber link loss monitoring method for a wavelength-division-multiplexed (WDM) passive optical network. This method is based on the optical signal comparison between a reference amplified spontaneous emission signal and its reflection from an optical reflector. Therefore, we can calculate the link loss exactly and also measure the characteristics of upstream optical signals without suspending the in-service channels. Since this scheme does not use narrow-band wavelength-dependent components such as fiber Bragg gratings, it is cost-effective in implementation and maintenance within a real optical network. We experimentally demonstrate that the link quality of upstream signals as well as fiber link faults on all WDM channels can he monitored in real time.

引用

页码：523 / 525

页数：3

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