光通信技术
光通信技術
광통신기술
OPTICAL COMMUNICATION TECHNOLOGY
2010年
3期
37-39
,共3页
殷爱菡%周薇%焦曰里%刘方仁
慇愛菡%週薇%焦曰裏%劉方仁
은애함%주미%초왈리%류방인
差分相移键控(DPSK)%光纤传榆%光放大器自发辐射(ASE)噪声
差分相移鍵控(DPSK)%光纖傳榆%光放大器自髮輻射(ASE)譟聲
차분상이건공(DPSK)%광섬전유%광방대기자발복사(ASE)조성
differential phase-shift keying (DPSK)%fiber transmission%amplified spontaneous emission (ASE) noise
介绍了DPSK码型的产生原理,通过仿真软件模拟级联调制器产生各种DPSK光调制码型,给出了频谱,并基于仿真软件建立了DPSK光纤传输模型,重点考虑了光放大器的自发辐射(ASE)噪声对DPSK系统的性能影响.实际仿真结果表明了ASE噪声是限制级联DPSK传输系统传输距离的最主要因素.
介紹瞭DPSK碼型的產生原理,通過倣真軟件模擬級聯調製器產生各種DPSK光調製碼型,給齣瞭頻譜,併基于倣真軟件建立瞭DPSK光纖傳輸模型,重點攷慮瞭光放大器的自髮輻射(ASE)譟聲對DPSK繫統的性能影響.實際倣真結果錶明瞭ASE譟聲是限製級聯DPSK傳輸繫統傳輸距離的最主要因素.
개소료DPSK마형적산생원리,통과방진연건모의급련조제기산생각충DPSK광조제마형,급출료빈보,병기우방진연건건립료DPSK광섬전수모형,중점고필료광방대기적자발복사(ASE)조성대DPSK계통적성능영향.실제방진결과표명료ASE조성시한제급련DPSK전수계통전수거리적최주요인소.
Introduced the principle of differential phase-shift keying (DPSK) pattern generated at first, proves the feasibility of generating DPSK optical modulation formats with cascaded modulators with software simulation, and gives the spectrum. DPSK optical-fiber transmission model is built based on simulation software, with the main focus on the effects of the spontaneous emission of optical amplifier (ASE) noise on the DPSK system. Actual simulation results show that the ASE noise limits transmissive distance of the cascaded DPSK transmission system.
