【單模光纖收發器】單模光纖收發器簡介 單模光纖收發器的(de)常見(jian)分(fen)類

單模光纖收發器簡介

光纖收發器的(de)(de)(de)(de)(de)(de)(de)(de)種(zhong)類(lei)也(ye)很(hen)繁(fan)雜。光(guang)(guang)纖(xian)網(wang)(wang)(wang)(wang)絡(luo)的(de)(de)(de)(de)(de)(de)(de)(de)發展成為了一(yi)個必(bi)然的(de)(de)(de)(de)(de)(de)(de)(de)趨勢，故(gu)此(ci)現在(zai)(zai)的(de)(de)(de)(de)(de)(de)(de)(de)企(qi)(qi)業(ye)在(zai)(zai)自身網(wang)(wang)(wang)(wang)絡(luo)建設時就(jiu)直(zhi)接(jie)使用光(guang)(guang)纖(xian)作為傳輸介質(zhi)(zhi)來建立骨干網(wang)(wang)(wang)(wang)，還有(you)(you)很(hen)多企(qi)(qi)業(ye)基于(yu)商業(ye)的(de)(de)(de)(de)(de)(de)(de)(de)需要(yao)也(ye)紛紛升(sheng)級原有(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)網(wang)(wang)(wang)(wang)絡(luo)。但(dan)是出于(yu)資金、人力或時間的(de)(de)(de)(de)(de)(de)(de)(de)考慮，很(hen)多企(qi)(qi)業(ye)用戶都迫切(qie)需要(yao)一(yi)種(zhong)廉價的(de)(de)(de)(de)(de)(de)(de)(de)方(fang)案，既(ji)能將成本(ben)降低，同(tong)時也(ye)讓原有(you)(you)的(de)(de)(de)(de)(de)(de)(de)(de)設備得到最大的(de)(de)(de)(de)(de)(de)(de)(de)保(bao)值。　所以很(hen)多的(de)(de)(de)(de)(de)(de)(de)(de)企(qi)(qi)業(ye)的(de)(de)(de)(de)(de)(de)(de)(de)做法就(jiu)是主干網(wang)(wang)(wang)(wang)為光(guang)(guang)纖(xian)，而(er)內部局(ju)域(yu)網(wang)(wang)(wang)(wang)的(de)(de)(de)(de)(de)(de)(de)(de)傳輸介質(zhi)(zhi)一(yi)般為銅(tong)線(xian)、雙(shuang)絞(jiao)線(xian)。但(dan)如(ru)何實(shi)現局(ju)域(yu)網(wang)(wang)(wang)(wang)同(tong)光(guang)(guang)纖(xian)主干網(wang)(wang)(wang)(wang)相連呢？這就(jiu)需要(yao)在(zai)(zai)不(bu)(bu)同(tong)端(duan)口、不(bu)(bu)同(tong)線(xian)形、不(bu)(bu)同(tong)光(guang)(guang)纖(xian)間進(jin)行轉(zhuan)(zhuan)換(huan)(huan)并保(bao)證鏈接(jie)質(zhi)(zhi)量。光(guang)(guang)纖(xian)收(shou)發器是一(yi)種(zhong)將短距離的(de)(de)(de)(de)(de)(de)(de)(de)雙(shuang)絞(jiao)線(xian)電(dian)信(xin)號和長(chang)距離的(de)(de)(de)(de)(de)(de)(de)(de)光(guang)(guang)信(xin)號進(jin)行互(hu)換(huan)(huan)的(de)(de)(de)(de)(de)(de)(de)(de)以太網(wang)(wang)(wang)(wang)傳輸媒(mei)體(ti)轉(zhuan)(zhuan)換(huan)(huan)單元，在(zai)(zai)很(hen)多地方(fang)也(ye)被稱之為光(guang)(guang)電(dian)轉(zhuan)(zhuan)換(huan)(huan)器或光(guang)(guang)纖(xian)轉(zhuan)(zhuan)換(huan)(huan)器（Fiber Converter）。

簡單的講，光纖收發器一端是接光傳輸系統，另一端（用戶端）出來的是10/100M以太網接口，其主要原理是通過光電耦合來實現的，對信號的編碼格式沒有什么變化。光纖收發器具有提供超低時延的數據傳輸、對網絡協議完全透明、多采用專用ASIC芯片實現數據線速轉發、設備多采用1+1的電源設計等等的優點，支持超寬電源電壓，實現電源保護(hu)和自動切換。同時支持超(chao)寬的工作溫度范(fan)圍，支持0～120公里(li)齊全(quan)的傳輸距離。

單模(mo)收(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)覆蓋(gai)的(de)(de)范圍可(ke)以從(cong)20公(gong)(gong)里(li)至120公(gong)(gong)里(li)。需要(yao)指出的(de)(de)是(shi)因(yin)傳輸距離的(de)(de)不(bu)同，光纖收(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)本(ben)身的(de)(de)發(fa)(fa)(fa)射功(gong)率(lv)、接收(shou)(shou)(shou)靈敏度和使用波長(chang)也(ye)會不(bu)一(yi)樣。如20公(gong)(gong)里(li)光纖收(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)的(de)(de)發(fa)(fa)(fa)射功(gong)率(lv)一(yi)般(ban)在-15～-7db之(zhi)間，接收(shou)(shou)(shou)靈敏度為(wei)(wei)-30db，使用1310nm的(de)(de)波長(chang)；而120公(gong)(gong)里(li)光纖收(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)的(de)(de)發(fa)(fa)(fa)射功(gong)率(lv)多(duo)在-5～0dB之(zhi)間，接收(shou)(shou)(shou)靈敏度為(wei)(wei)-38dB，使用1550nm的(de)(de)波長(chang)。

常見分類

光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)的(de)(de)(de)種類很(hen)繁(fan)雜，按速率來分(fen)，光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)可(ke)以(yi)(yi)分(fen)為(wei)(wei)單(dan)(dan)10M、100M的(de)(de)(de)光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)、10/100M自適應的(de)(de)(de)光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)和(he)(he)1000M光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)。按結構(gou)來分(fen)，可(ke)以(yi)(yi)分(fen)為(wei)(wei)桌面(mian)式(shi)（獨立式(shi)）光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)和(he)(he)機架式(shi)光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)。按光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)來分(fen)，可(ke)以(yi)(yi)分(fen)為(wei)(wei)多(duo)模(mo)光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)和(he)(he)單(dan)(dan)模(mo)光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)。按光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)數量來分(fen)，可(ke)以(yi)(yi)分(fen)為(wei)(wei)單(dan)(dan)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)和(he)(he)雙(shuang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)。按網(wang)管來分(fen)，可(ke)以(yi)(yi)分(fen)為(wei)(wei)網(wang)管型光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)和(he)(he)非網(wang)管型光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)。總體上看，光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)將會(hui)朝著(zhu)高(gao)智能、高(gao)穩定(ding)性、可(ke)網(wang)管、低成本的(de)(de)(de)方向繼續發(fa)(fa)(fa)展(zhan)。同時為(wei)(wei)了(le)保證與其他廠(chang)家的(de)(de)(de)網(wang)卡、中繼器(qi)、集線器(qi)和(he)(he)交換機等(deng)網(wang)絡設備的(de)(de)(de)完全兼(jian)容，光(guang)(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)發(fa)(fa)(fa)器(qi)產品必(bi)須嚴格符(fu)合(he)10Base-T、100Base-TX、100Base-FX、IEEE802.3和(he)(he)IEEE802.3u等(deng)以(yi)(yi)太網(wang)標準，否則所能連接的(de)(de)(de)距(ju)離定(ding)會(hui)縮短(duan)。在EMC防電(dian)磁輻(fu)射方面(mian)也應符(fu)合(he)FCC Part15標準。除(chu)此(ci)之外，選購(gou)時還有很(hen)多(duo)方面(mian)需要了(le)解并注意的(de)(de)(de)。

單模光纖收發器適用范圍

單模光(guang)(guang)纖(xian)收(shou)發器中單模的帶寬潛(qian)力(li)使其成為高速(su)和長距離數(shu)據傳(chuan)輸(shu)(shu)的最佳選擇。單模光(guang)(guang)纖(xian)收(shou)發器特別適用于電信、有線電視、鐵(tie)路、軍(jun)事(shi)、金融證(zheng)券、海(hai)關、民航、海(hai) 運、電力(li)、水利及油田等(deng)各種寬帶數(shu)據網及要求高可靠性數(shu)據傳(chuan)輸(shu)(shu)或組建IP數(shu)據傳(chuan)輸(shu)(shu)專(zhuan)網的領域。是(shi)寬帶校園網、寬帶有線電視網及智能化寬帶小區光(guang)(guang)纖(xian)到樓、光(guang)(guang)纖(xian)到戶的最理想應用設(she)備。解決數(shu)據遠距離傳(chuan)輸(shu)(shu)的問題。