固體光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)探測(ce)器(qi)(qi)用(yong)途非常廣(guang)。CdS光(guang)(guang)(guang)(guang)(guang)(guang)敏電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)因(yin)其(qi)成本低(di)而在(zai)光(guang)(guang)(guang)(guang)(guang)(guang)亮度控制(zhi)(zhi)（如照相(xiang)自動(dong)曝光(guang)(guang)(guang)(guang)(guang)(guang)）中(zhong)得(de)到采(cai)用(yong)；光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)池是(shi)固體光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)件中(zhong)具(ju)有(you)比較大(da)(da)光(guang)(guang)(guang)(guang)(guang)(guang)敏面(mian)積(ji)的(de)器(qi)(qi)件，它除用(yong)做(zuo)探測(ce)器(qi)(qi)件外，還(huan)可作太陽能變換器(qi)(qi)；硅(gui)光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)二極(ji)管體積(ji)小(xiao)、響(xiang)應(ying)(ying)快(kuai)、可靠(kao)性高(gao)，而且在(zai)可見光(guang)(guang)(guang)(guang)(guang)(guang)與近(jin)紅(hong)外波段內(nei)有(you)較高(gao)的(de)量(liang)子(zi)效(xiao)率(lv)，因(yin)而在(zai)各種工業控制(zhi)(zhi)中(zhong)獲得(de)應(ying)(ying)用(yong)。硅(gui)雪崩管由(you)(you)于(yu)(yu)(yu)增益高(gao)、響(xiang)應(ying)(ying)快(kuai)、噪聲小(xiao)，因(yin)而在(zai)激光(guang)(guang)(guang)(guang)(guang)(guang)測(ce)距(ju)與光(guang)(guang)(guang)(guang)(guang)(guang)纖通信中(zhong)普遍采(cai)用(yong)。photoconductivedetector利用(yong)半(ban)導(dao)體材(cai)(cai)料的(de)光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)導(dao)效(xiao)應(ying)(ying)制(zhi)(zhi)成的(de)一(yi)種光(guang)(guang)(guang)(guang)(guang)(guang)探測(ce)器(qi)(qi)件。所謂(wei)光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)導(dao)效(xiao)應(ying)(ying)，是(shi)指由(you)(you)輻射引起被照射材(cai)(cai)料電(dian)(dian)(dian)(dian)(dian)導(dao)率(lv)改(gai)變的(de)一(yi)種物(wu)理現象。光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)導(dao)探測(ce)器(qi)(qi)在(zai)國民經濟的(de)各個(ge)領域有(you)較廣(guang)用(yong)途。在(zai)可見光(guang)(guang)(guang)(guang)(guang)(guang)或近(jin)紅(hong)外波段主要(yao)用(yong)于(yu)(yu)(yu)射線測(ce)量(liang)和探測(ce)、工業自動(dong)控制(zhi)(zhi)、光(guang)(guang)(guang)(guang)(guang)(guang)度計量(liang)等；在(zai)紅(hong)外波段主要(yao)用(yong)于(yu)(yu)(yu)導(dao)彈制(zhi)(zhi)導(dao)、紅(hong)外熱成像、紅(hong)外遙感(gan)等方面(mian)。光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)導(dao)體的(de)另一(yi)應(ying)(ying)用(yong)是(shi)用(yong)它做(zuo)攝(she)像管靶(ba)面(mian)。為了避免光(guang)(guang)(guang)(guang)(guang)(guang)生載流子(zi)擴(kuo)散引起圖像模糊，連續薄膜靶(ba)面(mian)都用(yong)高(gao)阻(zu)(zu)多晶(jing)材(cai)(cai)料,如PbS-PbO、Sb2S3等。其(qi)他材(cai)(cai)料可采(cai)取鑲嵌(qian)靶(ba)面(mian)的(de)方法(fa)，整個(ge)靶(ba)面(mian)由(you)(you)約10萬個(ge)單獨探測(ce)器(qi)(qi)組成。PIN缺點在(zai)于(yu)(yu)(yu)I層電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)很大(da)(da)管子(zi)的(de)輸出(chu)電(dian)(dian)(dian)(dian)(dian)流小(xiao)，一(yi)般多為零點幾(ji)微安(an)至數(shu)微安(an)。飛(fei)博光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)高(gao)速光(guang)(guang)(guang)(guang)(guang)(guang)電(dian)(dian)(dian)(dian)(dian)探測(ce)器(qi)(qi)解釋

兩(liang)束(shu)滿足相(xiang)干(gan)(gan)(gan)條(tiao)件的(de)(de)信(xin)(xin)號(hao)(hao)稱為相(xiang)干(gan)(gan)(gan)信(xin)(xin)號(hao)(hao)，相(xiang)干(gan)(gan)(gan)條(tiao)件（CoherentCondition）：這兩(liang)束(shu)信(xin)(xin)號(hao)(hao)在相(xiang)遇(yu)區(qu)域：①振(zhen)動方向(xiang)相(xiang)同(tong)；②振(zhen)動頻率(lv)相(xiang)同(tong)；③相(xiang)位(wei)相(xiang)同(tong)或相(xiang)位(wei)差保持恒定那么在兩(liang)束(shu)信(xin)(xin)號(hao)(hao)相(xiang)遇(yu)的(de)(de)區(qu)域內就(jiu)(jiu)會產生干(gan)(gan)(gan)涉現(xian)象。能發出相(xiang)互干(gan)(gan)(gan)涉的(de)(de)信(xin)(xin)號(hao)(hao)的(de)(de)兩(liang)個(ge)信(xin)(xin)號(hao)(hao)源就(jiu)(jiu)叫(jiao)相(xiang)干(gan)(gan)(gan)信(xin)(xin)號(hao)(hao)源。在相(xiang)干(gan)(gan)(gan)信(xin)(xin)號(hao)(hao)源情況下正(zheng)確估計信(xin)(xin)號(hao)(hao)方向(xiang)(即(ji)解相(xiang)干(gan)(gan)(gan)或去相(xiang)關(guan))的(de)(de)關(guan)鍵問題(ti)是如(ru)何通(tong)過一(yi)系列處理(li)或變換使得信(xin)(xin)號(hao)(hao)協(xie)方差矩(ju)陣的(de)(de)秩(zhi)得到有效恢復，從(cong)而正(zheng)確估計信(xin)(xin)號(hao)(hao)源的(de)(de)方向(xiang)。目前(qian)關(guan)于解相(xiang)干(gan)(gan)(gan)的(de)(de)處理(li)基本有兩(liang)大類(lei)：一(yi)類(lei)是降維處理(li);另一(yi)類(lei)是非降維處理(li)。飛博光(guang)電(dian)高(gao)速光(guang)電(dian)探測(ce)器解釋APD雪崩二極管其(qi)主(zhu)要缺點是噪聲較大。

在(zai)(zai)光(guang)(guang)通(tong)(tong)(tong)信(xin)領域，更(geng)大(da)(da)的(de)(de)(de)帶(dai)(dai)寬(kuan)(kuan)(kuan)、更(geng)長的(de)(de)(de)傳(chuan)(chuan)輸(shu)距離、更(geng)高(gao)(gao)的(de)(de)(de)接收靈敏(min)度，永遠都是科研者的(de)(de)(de)追求(qiu)目標。盡管(guan)波分復用(yong)（WDM）技術(shu)和摻鉺光(guang)(guang)纖放大(da)(da)器（EDFA）的(de)(de)(de)應用(yong)已經極(ji)大(da)(da)的(de)(de)(de)提高(gao)(gao)了(le)(le)光(guang)(guang)通(tong)(tong)(tong)信(xin)系(xi)(xi)統(tong)的(de)(de)(de)帶(dai)(dai)寬(kuan)(kuan)(kuan)和傳(chuan)(chuan)輸(shu)距離，但是近十年來(lai)伴(ban)隨(sui)著視頻會議(yi)等(deng)通(tong)(tong)(tong)信(xin)技術(shu)的(de)(de)(de)應用(yong)和互聯網的(de)(de)(de)普及產生的(de)(de)(de)信(xin)息快速式(shi)增長，對(dui)作為(wei)整(zheng)個通(tong)(tong)(tong)信(xin)系(xi)(xi)統(tong)基礎的(de)(de)(de)物理層提出了(le)(le)更(geng)高(gao)(gao)的(de)(de)(de)傳(chuan)(chuan)輸(shu)性能要求(qiu)。目前光(guang)(guang)通(tong)(tong)(tong)信(xin)系(xi)(xi)統(tong)采(cai)用(yong)強度調制(zhi)(zhi)/直接檢測(IM/DD)即發送端(duan)調制(zhi)(zhi)光(guang)(guang)載(zai)波強度，接收機(ji)對(dui)光(guang)(guang)載(zai)波進行包絡檢測。盡管(guan)這種結構具有(you)簡單、容易集(ji)成(cheng)等(deng)優點，但是由于(yu)只能采(cai)用(yong)ASK調制(zhi)(zhi)格式(shi)，其單路信(xin)道帶(dai)(dai)寬(kuan)(kuan)(kuan)很有(you)限。因此這種傳(chuan)(chuan)統(tong)光(guang)(guang)通(tong)(tong)(tong)信(xin)技術(shu)勢必會被更(geng)先(xian)進的(de)(de)(de)技術(shu)所代替。然而(er)在(zai)(zai)通(tong)(tong)(tong)信(xin)泡沫(mo)破滅的(de)(de)(de)現(xian)在(zai)(zai)，新(xin)的(de)(de)(de)光(guang)(guang)通(tong)(tong)(tong)信(xin)技術(shu)的(de)(de)(de)應用(yong)不(bu)可避免的(de)(de)(de)會帶(dai)(dai)來(lai)對(dui)新(xin)型通(tong)(tong)(tong)信(xin)設(she)備(bei)的(de)(de)(de)需求(qiu)，面對(dui)居高(gao)(gao)不(bu)下的(de)(de)(de)光(guang)(guang)器件價格，大(da)(da)規模通(tong)(tong)(tong)信(xin)設(she)備(bei)更(geng)換所需要的(de)(de)(de)高(gao)(gao)額成(cheng)本(ben)，是運(yun)營商(shang)所不(bu)能接受的(de)(de)(de)，因此對(dui)設(she)備(bei)制(zhi)(zhi)造商(shang)而(er)言，光(guang)(guang)纖通(tong)(tong)(tong)信(xin)新(xin)技術(shu)的(de)(de)(de)研發也面臨(lin)著很大(da)(da)的(de)(de)(de)風險。如何(he)在(zai)(zai)現(xian)有(you)的(de)(de)(de)設(she)備(bei)基礎上(shang)提高(gao)(gao)光(guang)(guang)通(tong)(tong)(tong)信(xin)系(xi)(xi)統(tong)的(de)(de)(de)性能成(cheng)為(wei)了(le)(le)切實的(de)(de)(de)問(wen)題(ti)。

光(guang)相(xiang)干接(jie)收機的(de)(de)(de)一個優點(dian)是數(shu)字信(xin)號(hao)處(chu)理(li)功(gong)能。數(shu)字相(xiang)干接(jie)收機的(de)(de)(de)解調過(guo)程是完全線(xian)性的(de)(de)(de)；所有傳(chuan)(chuan)輸(shu)(shu)光(guang)信(xin)號(hao)的(de)(de)(de)復雜(za)幅度(du)(du)信(xin)息包括偏振態在檢測后被保(bao)存分(fen)析，因此可(ke)以進(jin)行各種信(xin)號(hao)補(bu)(bu)償處(chu)理(li)，比(bi)如做色(se)度(du)(du)色(se)散(san)(san)補(bu)(bu)償和偏振模式色(se)散(san)(san)補(bu)(bu)償。這(zhe)就使得長(chang)(chang)距(ju)離(li)(li)傳(chuan)(chuan)輸(shu)(shu)的(de)(de)(de)鏈路(lu)設計變得更加簡單(dan)，因為(wei)傳(chuan)(chuan)統的(de)(de)(de)非相(xiang)干光(guang)通(tong)信(xin)是要通(tong)過(guo)光(guang)路(lu)補(bu)(bu)償器件來進(jin)行色(se)散(san)(san)補(bu)(bu)償等工(gong)作的(de)(de)(de)。（傳(chuan)(chuan)統傳(chuan)(chuan)輸(shu)(shu)鏈路(lu)的(de)(de)(de)色(se)散(san)(san)問題，即光(guang)信(xin)號(hao)各個組成(cheng)成(cheng)分(fen)在光(guang)纖中(zhong)傳(chuan)(chuan)輸(shu)(shu)時(shi)，抵達時(shi)間不一樣(yang)。）相(xiang)干接(jie)收機比(bi)普(pu)通(tong)的(de)(de)(de)接(jie)收機靈敏度(du)(du)高大約20dB,因此在傳(chuan)(chuan)輸(shu)(shu)系統中(zhong)無中(zhong)繼的(de)(de)(de)距(ju)離(li)(li)就會越長(chang)(chang)。得益(yi)于接(jie)收機的(de)(de)(de)高靈敏度(du)(du)，我們可(ke)以減(jian)少在長(chang)(chang)距(ju)離(li)(li)傳(chuan)(chuan)輸(shu)(shu)光(guang)路(lu)上(shang)進(jin)行放大的(de)(de)(de)次數(shu)。基于以上(shang)原因，相(xiang)干光(guang)通(tong)信(xin)可(ke)以減(jian)少長(chang)(chang)距(ju)離(li)(li)傳(chuan)(chuan)輸(shu)(shu)的(de)(de)(de)光(guang)纖架設成(cheng)本，簡化光(guang)路(lu)放大和補(bu)(bu)償設計，因此在長(chang)(chang)距(ju)離(li)(li)傳(chuan)(chuan)輸(shu)(shu)網上(shang)成(cheng)為(wei)了主要的(de)(de)(de)應用技(ji)術。PIN優點(dian)在于響(xiang)(xiang)應度(du)(du)高響(xiang)(xiang)應速度(du)(du)快，頻帶(dai)也較寬工(gong)作電壓低。

光(guang)(guang)電(dian)(dian)(dian)(dian)(dian)導探(tan)測(ce)(ce)(ce)器(qi)(qi)主要(yao)是通(tong)過(guo)電(dian)(dian)(dian)(dian)(dian)陰值的(de)變化(hua)來檢測(ce)(ce)(ce)，以下我(wo)將(jiang)以光(guang)(guang)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)為例介紹其工作(zuo)原理。光(guang)(guang)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)又稱(cheng)光(guang)(guang)導管,它(ta)沒有極性,純(chun)粹是一(yi)個(ge)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)器(qi)(qi)件,使(shi)用時既可加(jia)直流電(dian)(dian)(dian)(dian)(dian)壓,也可以加(jia)交流電(dian)(dian)(dian)(dian)(dian)壓。無光(guang)(guang)照時,光(guang)(guang)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值（暗(an)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)）很大(da),電(dian)(dian)(dian)(dian)(dian)路中(zhong)電(dian)(dian)(dian)(dian)(dian)流（暗(an)電(dian)(dian)(dian)(dian)(dian)流）很小。當光(guang)(guang)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)受到(dao)一(yi)定(ding)波長范圍的(de)光(guang)(guang)照時,它(ta)的(de)阻(zu)(zu)值（亮(liang)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)）急劇(ju)減少,電(dian)(dian)(dian)(dian)(dian)路中(zhong)電(dian)(dian)(dian)(dian)(dian)流迅速增大(da)。一(yi)般希望(wang)暗(an)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)越大(da)越好,亮(liang)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)越小越好,此時光(guang)(guang)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)的(de)靈敏(min)(min)度高。實際(ji)光(guang)(guang)敏(min)(min)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)的(de)暗(an)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)值一(yi)般在(zai)兆歐(ou)級(ji),亮(liang)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)在(zai)幾千歐(ou)以下。光(guang)(guang)電(dian)(dian)(dian)(dian)(dian)探(tan)測(ce)(ce)(ce)器(qi)(qi)在(zai)光(guang)(guang)通(tong)信系統中(zhong)實現將(jiang)光(guang)(guang)轉變成電(dian)(dian)(dian)(dian)(dian)的(de)作(zuo)用。廣東2GHZ APD光(guang)(guang)電(dian)(dian)(dian)(dian)(dian)探(tan)測(ce)(ce)(ce)器(qi)(qi)交易(yi)價(jia)格

APD適(shi)用于接(jie)收靈(ling)敏度要求高的長距離(li)傳輸和高速(su)率通信(xin)系統。飛博光電高速(su)光電探測器解釋

相(xiang)(xiang)(xiang)干(gan)(gan)光(guang)(guang)通(tong)(tong)信的(de)(de)(de)理論和(he)(he)實(shi)(shi)驗(yan)始于(yu)(yu)80年(nian)(nian)代。由(you)(you)于(yu)(yu)相(xiang)(xiang)(xiang)干(gan)(gan)光(guang)(guang)通(tong)(tong)信系統(tong)被公認為具有靈敏(min)度(du)高的(de)(de)(de)優(you)勢(shi)，各(ge)國在(zai)(zai)相(xiang)(xiang)(xiang)干(gan)(gan)光(guang)(guang)傳(chuan)(chuan)輸(shu)技(ji)術上(shang)做(zuo)了大(da)量(liang)研(yan)究工作。經(jing)過十(shi)年(nian)(nian)的(de)(de)(de)研(yan)究，相(xiang)(xiang)(xiang)干(gan)(gan)光(guang)(guang)通(tong)(tong)信進(jin)入實(shi)(shi)用(yong)階段。英美日等國相(xiang)(xiang)(xiang)繼進(jin)行了一系列相(xiang)(xiang)(xiang)干(gan)(gan)光(guang)(guang)通(tong)(tong)信實(shi)(shi)驗(yan)。AT&T及(ji)Bell公司(si)于(yu)(yu)1989和(he)(he)1990年(nian)(nian)在(zai)(zai)賓(bin)州的(de)(de)(de)羅靈—克(ke)(ke)里(li)(li)克(ke)(ke)地面站與森(sen)伯(bo)里(li)(li)樞紐站間先后(hou)(hou)進(jin)行了1.3μm和(he)(he)1.55μm波(bo)長(chang)的(de)(de)(de)1.7Gbit/sFSK現場無中繼相(xiang)(xiang)(xiang)干(gan)(gan)傳(chuan)(chuan)輸(shu)實(shi)(shi)驗(yan)，相(xiang)(xiang)(xiang)距35公里(li)(li)，接(jie)收靈敏(min)度(du)達到-41.5dBm。NTT公司(si)于(yu)(yu)1990年(nian)(nian)在(zai)(zai)瀨戶(hu)內陸海(hai)的(de)(de)(de)大(da)分—尹予和(he)(he)吳站之間進(jin)行了2.5Gbit/sCPFSK相(xiang)(xiang)(xiang)干(gan)(gan)傳(chuan)(chuan)輸(shu)實(shi)(shi)驗(yan)，總(zong)長(chang)431公里(li)(li)。直到19世紀(ji)80年(nian)(nian)代末(mo)，EDFA和(he)(he)WDM技(ji)術的(de)(de)(de)發(fa)展，使得相(xiang)(xiang)(xiang)干(gan)(gan)光(guang)(guang)通(tong)(tong)信技(ji)術的(de)(de)(de)發(fa)展緩慢(man)下(xia)來。在(zai)(zai)這段時期，靈敏(min)度(du)和(he)(he)每個(ge)通(tong)(tong)道的(de)(de)(de)信息(xi)容(rong)量(liang)已經(jing)不再備受關注。然而(er)，直接(jie)檢測(ce)的(de)(de)(de)WDM系統(tong)經(jing)過二十(shi)年(nian)(nian)的(de)(de)(de)發(fa)展和(he)(he)廣泛應(ying)用(yong)后(hou)(hou)，新的(de)(de)(de)征兆開始出現，標志著(zhu)相(xiang)(xiang)(xiang)干(gan)(gan)光(guang)(guang)傳(chuan)(chuan)輸(shu)技(ji)術的(de)(de)(de)應(ying)用(yong)將再次受到重視。在(zai)(zai)數(shu)(shu)字通(tong)(tong)信方(fang)(fang)面，擴大(da)C波(bo)段放大(da)器的(de)(de)(de)容(rong)量(liang)，克(ke)(ke)服光(guang)(guang)纖色散效應(ying)的(de)(de)(de)惡化，以及(ji)增加自由(you)(you)空間傳(chuan)(chuan)輸(shu)的(de)(de)(de)容(rong)量(liang)和(he)(he)范圍已成為重要(yao)的(de)(de)(de)考(kao)慮因素(su)。在(zai)(zai)模擬通(tong)(tong)信方(fang)(fang)面，靈敏(min)度(du)和(he)(he)動態(tai)范圍成為系統(tong)的(de)(de)(de)關鍵參數(shu)(shu)，而(er)他們都能(neng)通(tong)(tong)過相(xiang)(xiang)(xiang)關光(guang)(guang)通(tong)(tong)信技(ji)術得到很大(da)改(gai)善。飛(fei)博光(guang)(guang)電高速光(guang)(guang)電探測(ce)器解釋

深圳市(shi)飛(fei)博光(guang)電(dian)科技有限公司(si)在(zai)(zai)激光(guang)光(guang)源(yuan)，光(guang)放(fang)大(da)(da)器(qi)(qi)，射頻放(fang)大(da)(da)器(qi)(qi)，光(guang)電(dian)探測器(qi)(qi)一直在(zai)(zai)同行業中處于較強地位，無論是(shi)產品還是(shi)服務，其高水平的(de)(de)能力始(shi)終貫穿于其中。公司(si)成立于2018-09-30，旗(qi)下(xia)飛(fei)博光(guang)電(dian)，已經具有一定的(de)(de)業內水平。公司(si)承擔(dan)并建設完成通信產品多(duo)項(xiang)重點項(xiang)目，取得了明顯的(de)(de)社會和(he)經濟效(xiao)益。產品已銷往多(duo)個國家和(he)地區，被國內外(wai)眾多(duo)企業和(he)客戶所認可(ke)。

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