報告書番号

R97004

タイトル（和文）

光ファイバ波長分散の補償技術分散補償ファイバおよびチャープドファイバグレーティングの比較

タイトル（英文）

CHROMATIC DISPERSION COMPENSATING TECHNOLOGYFOR AN OPTICAL FIBER TRANSMISSION-COMPARISON BETWEEN DISPERSION COMPENSATING FIBER AND CHIRPED FIBER BRAGG GRATING-

概要 （図表や脚注は「報告書全文」に掲載しております）

光ファイバ波長分散の補償技術のうち，分散補償ファイバ，チャープドファイバグレーティングについて分散補償特性を比較した。その結果現状では，伝送波形の復元性，偏波依存性などの評価項目で分散補償ファイバの適用が実用性が高いことが判った。

概要 （英文）

IN OPTICAL FIBER COMMINICATION SYSTEMS,THE WAVEFORM OF THE RECEIVED OPTICAL PULSE IS DISTORTED BY CHROMATIC DISPERSION OF THE OPTICAL FIBER. IN PARICULAR,WAVEFORM DISTORTION IS LARGE WHEN A 1.5- M LIGHT PULSE IS TRANSMITTED IN A 1.3- M ZERO DISPERSION FIBERUSED MAINLY BY ELECTRIC POWER UTILITIES. SOME TECHNOLOGY TO COMPENSATEFOR THE WAVEFORM DISTORTION HAS BEEN DEVELOPED,BUT QUANTITATIVE EVALUATION IS REQUIRED WHEN APPLYING THIS TECHNOLOGY TO PRACTICAL SYSTEMS. INTHIS REPORT,THE PERFORMANCE OF A DISPERSION COMPENSATING FIBE (DCF) AND A CHIRPED FIBER BRAGG GRATING (CFG) WERE EVALUATED EXPERIMENTALLY FROM THE VIEWPOINTS OF WAVEFORM RESHAPING,WAVELENGTH LINEARITY,AND POLARIZATION DEPENDENCE. IT WAS FOUND THAT THE DCF IS MORE PRACTICAL THAN THE CFG AT PRESENT. HOWEVER,BOTH DEVICES HAVE POTENTIAL FOR IMPROVEMENT IN FUTURE APPLICATIONS.

報告者

キーワード