【單(dan)模光纖(xian)收(shou)發器】單(dan)模光纖(xian)收(shou)發器簡介 單(dan)模光纖(xian)收(shou)發器的(de)常見分類

單模光纖收發器簡介

光纖收發器的(de)(de)(de)(de)種類也很(hen)繁雜。光(guang)(guang)(guang)纖(xian)網絡的(de)(de)(de)(de)發(fa)展成(cheng)(cheng)為(wei)(wei)(wei)了一(yi)個必(bi)然的(de)(de)(de)(de)趨勢，故此現在的(de)(de)(de)(de)企(qi)(qi)業在自身網絡建設時就(jiu)直(zhi)接使用光(guang)(guang)(guang)纖(xian)作為(wei)(wei)(wei)傳輸介(jie)質來建立(li)骨干網，還有很(hen)多(duo)企(qi)(qi)業基于(yu)商業的(de)(de)(de)(de)需要(yao)(yao)也紛紛升(sheng)級(ji)原有的(de)(de)(de)(de)網絡。但是出于(yu)資(zi)金、人(ren)力或時間的(de)(de)(de)(de)考慮，很(hen)多(duo)企(qi)(qi)業用戶都迫切(qie)需要(yao)(yao)一(yi)種廉價(jia)的(de)(de)(de)(de)方案，既能將成(cheng)(cheng)本降低，同時也讓(rang)原有的(de)(de)(de)(de)設備(bei)得到最大的(de)(de)(de)(de)保值。　所以(yi)(yi)很(hen)多(duo)的(de)(de)(de)(de)企(qi)(qi)業的(de)(de)(de)(de)做法(fa)就(jiu)是主干網為(wei)(wei)(wei)光(guang)(guang)(guang)纖(xian)，而內(nei)部局域(yu)網的(de)(de)(de)(de)傳輸介(jie)質一(yi)般為(wei)(wei)(wei)銅線、雙絞(jiao)線。但如何(he)實現局域(yu)網同光(guang)(guang)(guang)纖(xian)主干網相連呢？這就(jiu)需要(yao)(yao)在不同端口、不同線形、不同光(guang)(guang)(guang)纖(xian)間進(jin)行轉(zhuan)換(huan)(huan)(huan)并保證鏈(lian)接質量。光(guang)(guang)(guang)纖(xian)收(shou)發(fa)器是一(yi)種將短距(ju)離(li)的(de)(de)(de)(de)雙絞(jiao)線電(dian)信號(hao)和長(chang)距(ju)離(li)的(de)(de)(de)(de)光(guang)(guang)(guang)信號(hao)進(jin)行互換(huan)(huan)(huan)的(de)(de)(de)(de)以(yi)(yi)太網傳輸媒體(ti)轉(zhuan)換(huan)(huan)(huan)單(dan)元，在很(hen)多(duo)地方也被稱之為(wei)(wei)(wei)光(guang)(guang)(guang)電(dian)轉(zhuan)換(huan)(huan)(huan)器或光(guang)(guang)(guang)纖(xian)轉(zhuan)換(huan)(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，實現電源保護和自(zi)動(dong)切換。同時支持超寬的工作溫度范圍(wei)，支持0～120公里(li)齊全的傳輸距(ju)離。

單模收(shou)發(fa)(fa)(fa)(fa)器(qi)(qi)覆蓋的(de)(de)(de)范圍可(ke)以從20公(gong)里至120公(gong)里。需(xu)要指(zhi)出的(de)(de)(de)是因(yin)傳輸(shu)距(ju)離的(de)(de)(de)不(bu)同，光(guang)(guang)纖(xian)收(shou)發(fa)(fa)(fa)(fa)器(qi)(qi)本身(shen)的(de)(de)(de)發(fa)(fa)(fa)(fa)射功率、接收(shou)靈敏度和使用(yong)波長(chang)也會不(bu)一樣。如(ru)20公(gong)里光(guang)(guang)纖(xian)收(shou)發(fa)(fa)(fa)(fa)器(qi)(qi)的(de)(de)(de)發(fa)(fa)(fa)(fa)射功率一般在(zai)-15～-7db之(zhi)(zhi)間，接收(shou)靈敏度為-30db，使用(yong)1310nm的(de)(de)(de)波長(chang)；而120公(gong)里光(guang)(guang)纖(xian)收(shou)發(fa)(fa)(fa)(fa)器(qi)(qi)的(de)(de)(de)發(fa)(fa)(fa)(fa)射功率多在(zai)-5～0dB之(zhi)(zhi)間，接收(shou)靈敏度為-38dB，使用(yong)1550nm的(de)(de)(de)波長(chang)。

常見分類

光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)的(de)種類很(hen)繁雜，按速率來(lai)分(fen)，光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)可(ke)(ke)以(yi)(yi)分(fen)為(wei)(wei)(wei)單(dan)10M、100M的(de)光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)、10/100M自適應(ying)的(de)光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)和(he)(he)1000M光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)。按結構來(lai)分(fen)，可(ke)(ke)以(yi)(yi)分(fen)為(wei)(wei)(wei)桌面式（獨立式）光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)和(he)(he)機架式光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)。按光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)來(lai)分(fen)，可(ke)(ke)以(yi)(yi)分(fen)為(wei)(wei)(wei)多模光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)和(he)(he)單(dan)模光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)。按光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)數量來(lai)分(fen)，可(ke)(ke)以(yi)(yi)分(fen)為(wei)(wei)(wei)單(dan)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)和(he)(he)雙纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)。按網(wang)(wang)(wang)管來(lai)分(fen)，可(ke)(ke)以(yi)(yi)分(fen)為(wei)(wei)(wei)網(wang)(wang)(wang)管型(xing)光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)和(he)(he)非網(wang)(wang)(wang)管型(xing)光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)。總體上看(kan)，光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)將會(hui)朝著高智能(neng)、高穩定性、可(ke)(ke)網(wang)(wang)(wang)管、低成本的(de)方向繼(ji)續發(fa)(fa)(fa)展。同時(shi)為(wei)(wei)(wei)了保證與其他廠(chang)家的(de)網(wang)(wang)(wang)卡(ka)、中繼(ji)器(qi)(qi)、集(ji)線器(qi)(qi)和(he)(he)交換機等(deng)網(wang)(wang)(wang)絡設備的(de)完全兼容，光(guang)纖(xian)(xian)(xian)(xian)(xian)(xian)(xian)收(shou)(shou)(shou)(shou)(shou)發(fa)(fa)(fa)器(qi)(qi)產品(pin)必須嚴(yan)格(ge)符(fu)合10Base-T、100Base-TX、100Base-FX、IEEE802.3和(he)(he)IEEE802.3u等(deng)以(yi)(yi)太(tai)網(wang)(wang)(wang)標準(zhun)，否則所能(neng)連(lian)接的(de)距離(li)定會(hui)縮短(duan)。在(zai)EMC防電磁(ci)輻射方面也應(ying)符(fu)合FCC Part15標準(zhun)。除此之外，選購時(shi)還有很(hen)多方面需要了解并注意(yi)的(de)。

單模光纖收發器適用范圍

單模(mo)光纖收發(fa)器(qi)(qi)中單模(mo)的(de)帶(dai)寬(kuan)潛力(li)使其成為高速和長距(ju)離(li)數(shu)(shu)據傳輸的(de)最(zui)佳選擇。單模(mo)光纖收發(fa)器(qi)(qi)特別適用于(yu)電(dian)信、有(you)線電(dian)視、鐵路(lu)、軍事(shi)、金(jin)融證券、海(hai)(hai)關(guan)、民航、海(hai)(hai) 運、電(dian)力(li)、水利及油田(tian)等(deng)各種寬(kuan)帶(dai)數(shu)(shu)據網及要求高可靠性數(shu)(shu)據傳輸或組建IP數(shu)(shu)據傳輸專網的(de)領域。是(shi)寬(kuan)帶(dai)校園(yuan)網、寬(kuan)帶(dai)有(you)線電(dian)視網及智能化(hua)寬(kuan)帶(dai)小區光纖到樓、光纖到戶(hu)的(de)最(zui)理想應用設備。解決數(shu)(shu)據遠(yuan)距(ju)離(li)傳輸的(de)問題。