本(ben)發明是一種用于(yu)自由空間激光(guang)通信的裝置(zhi)，具體(ti)涉及到(dao)大視場接收的逆向調(diao)制無(wu)線通信裝置(zhi)，屬于(yu)無(wu)線通信技術領域。

背景技術：

激光無線(xian)(xian)通(tong)信因具有通(tong)信容(rong)量大、傳輸速率高、保(bao)密(mi)性(xing)好(hao)、抗電磁(ci)干擾(rao)能(neng)力(li)強(qiang)、重(zhong)量輕、體積小、功(gong)耗低等優點，在(zai)無線(xian)(xian)通(tong)信領(ling)域中是十分重(zhong)要(yao)的(de)(de)通(tong)信方式，將在(zai)星地及星間高速無線(xian)(xian)通(tong)信的(de)(de)領(ling)域，對(dui)通(tong)信內容(rong)的(de)(de)安(an)全保(bao)密(mi)性(xing)要(yao)求較高的(de)(de)場合(he)(he)(比(bi)如(ru)政府、軍事(shi)部(bu)門(men)、安(an)全部(bu)門(men))，或(huo)者有強(qiang)電磁(ci)干擾(rao)的(de)(de)場所(如(ru)戰場)等諸多場合(he)(he)中具有潛在(zai)的(de)(de)應用前景。

基于(yu)調(diao)制回復反射器的(de)非對稱自由(you)空間(jian)激光通(tong)信系統(tong)可用于(yu)對體積、功耗、重量限制較大的(de)平臺上，如無人機、微(wei)小(xiao)衛(wei)星(xing)等(deng)。為此基于(yu)調(diao)制回復反射器自由(you)空間(jian)激光通(tong)信系統(tong)是(shi)未(wei)來微(wei)小(xiao)型(xing)空間(jian)激光通(tong)信發展趨勢之一。

中(zhong)(zhong)(zhong)國專利”全雙工(gong)貓眼(yan)逆向(xiang)調(diao)制(zhi)(zhi)(zhi)回(hui)復(fu)(fu)自由空間激光(guang)(guang)通(tong)(tong)信(xin)(xin)系(xi)統”，申請號(hao)CN201410592675.X，該(gai)發(fa)明在接收(shou)系(xi)統中(zhong)(zhong)(zhong)采用了雙波長發(fa)射端(duan)、光(guang)(guang)纖(xian)電光(guang)(guang)調(diao)制(zhi)(zhi)(zhi)器、光(guang)(guang)纖(xian)放大器，實(shi)現了全雙工(gong)高(gao)速遠(yuan)(yuan)距離的逆向(xiang)調(diao)制(zhi)(zhi)(zhi)回(hui)復(fu)(fu)通(tong)(tong)信(xin)(xin)功能。該(gai)發(fa)明與(yu)傳統的調(diao)制(zhi)(zhi)(zhi)回(hui)復(fu)(fu)系(xi)統相比，通(tong)(tong)信(xin)(xin)速率高(gao)、全雙工(gong)、通(tong)(tong)信(xin)(xin)距離遠(yuan)(yuan)、結構緊湊。但(dan)該(gai)系(xi)統中(zhong)(zhong)(zhong)采用了準直鏡來實(shi)現空間光(guang)(guang)耦合到單模光(guang)(guang)纖(xian)，受到單模光(guang)(guang)纖(xian)半徑(jing)和數值孔徑(jing)的限制(zhi)(zhi)(zhi)，視場角范(fan)圍極小(遠(yuan)(yuan)小于0.1°)，系(xi)統工(gong)作(zuo)過(guo)程(cheng)中(zhong)(zhong)(zhong)對準誤差(cha)、機械振(zhen)動(dong)、熱膨(peng)脹等因素導致的接收(shou)系(xi)統入(ru)射角波動(dong)，耦合效率迅速降低，甚至中(zhong)(zhong)(zhong)斷通(tong)(tong)信(xin)(xin)鏈路，使得(de)遠(yuan)(yuan)距離調(diao)制(zhi)(zhi)(zhi)回(hui)復(fu)(fu)通(tong)(tong)信(xin)(xin)的對準難度大大增(zeng)加，系(xi)統穩定性變差(cha)，通(tong)(tong)信(xin)(xin)質量嚴重下降。

技術實現要素：

本發(fa)明為了解決現有光纖調(diao)制放大回復自(zi)由(you)空間(jian)激(ji)光通(tong)信(xin)系(xi)統(tong)(tong)中所存在(zai)的鏈路對(dui)準視場過小、系(xi)統(tong)(tong)要求精度高、鏈路穩定性差的問題，提(ti)出了一種大視場逆向調(diao)制回復自(zi)由(you)空間(jian)激(ji)光通(tong)信(xin)系(xi)統(tong)(tong)。

本發明(ming)采(cai)取以下技術方案：

大視(shi)場(chang)逆向(xiang)調(diao)(diao)制回復(fu)自由空(kong)間激(ji)光(guang)通(tong)信(xin)系(xi)統，其特征是(shi)，該(gai)系(xi)統包(bao)括主通(tong)信(xin)端機(ji)和逆向(xiang)調(diao)(diao)制回復(fu)端機(ji)兩部分，

主通信端機中，通信發射端連接(jie)(jie)到第(di)一(yi)環(huan)行(xing)器(qi)(qi)的a端口(kou)，第(di)一(yi)環(huan)行(xing)器(qi)(qi)的c端口(kou)與光電(dian)探測器(qi)(qi)相連，第(di)一(yi)環(huan)行(xing)器(qi)(qi)的b端口(kou)連接(jie)(jie)耦(ou)合(he)透鏡(jing)，卡塞格林望遠鏡(jing)與耦(ou)合(he)透鏡(jing)同軸放(fang)置；

逆向調(diao)制(zhi)(zhi)(zhi)回復端(duan)(duan)(duan)機中，貓(mao)眼光(guang)(guang)(guang)學系統(tong)與(yu)曲(qu)面微透(tou)鏡陣(zhen)列(lie)同軸放置，貓(mao)眼光(guang)(guang)(guang)學系統(tong)通過(guo)第(di)(di)一(yi)單(dan)(dan)模(mo)光(guang)(guang)(guang)纖(xian)(xian)陣(zhen)列(lie)與(yu)1×2耦(ou)合(he)器(qi)(qi)(qi)陣(zhen)列(lie)連(lian)接(jie)；1×2耦(ou)合(he)器(qi)(qi)(qi)陣(zhen)列(lie)的(de)高(gao)(gao)(gao)輸出(chu)功率端(duan)(duan)(duan)通過(guo)第(di)(di)二(er)單(dan)(dan)模(mo)光(guang)(guang)(guang)纖(xian)(xian)陣(zhen)列(lie)連(lian)接(jie)至(zhi)(zhi)N×1高(gao)(gao)(gao)速(su)(su)光(guang)(guang)(guang)開(kai)關(guan)(guan)，1×2耦(ou)合(he)器(qi)(qi)(qi)陣(zhen)列(lie)的(de)低輸出(chu)功率端(duan)(duan)(duan)通過(guo)第(di)(di)三單(dan)(dan)模(mo)光(guang)(guang)(guang)纖(xian)(xian)陣(zhen)列(lie)連(lian)接(jie)至(zhi)(zhi)高(gao)(gao)(gao)速(su)(su)光(guang)(guang)(guang)電(dian)探(tan)測器(qi)(qi)(qi)陣(zhen)列(lie)，高(gao)(gao)(gao)速(su)(su)電(dian)探(tan)測器(qi)(qi)(qi)陣(zhen)列(lie)連(lian)接(jie)控制(zhi)(zhi)(zhi)器(qi)(qi)(qi)，控制(zhi)(zhi)(zhi)器(qi)(qi)(qi)連(lian)接(jie)高(gao)(gao)(gao)速(su)(su)光(guang)(guang)(guang)開(kai)關(guan)(guan)，高(gao)(gao)(gao)速(su)(su)光(guang)(guang)(guang)開(kai)關(guan)(guan)的(de)輸出(chu)端(duan)(duan)(duan)連(lian)接(jie)至(zhi)(zhi)第(di)(di)二(er)環(huan)行(xing)器(qi)(qi)(qi)的(de)d端(duan)(duan)(duan)，第(di)(di)二(er)環(huan)行(xing)器(qi)(qi)(qi)的(de)e端(duan)(duan)(duan)接(jie)入(ru)(ru)光(guang)(guang)(guang)纖(xian)(xian)放大(da)器(qi)(qi)(qi)，光(guang)(guang)(guang)纖(xian)(xian)放大(da)器(qi)(qi)(qi)的(de)輸出(chu)端(duan)(duan)(duan)接(jie)入(ru)(ru)高(gao)(gao)(gao)速(su)(su)調(diao)制(zhi)(zhi)(zhi)器(qi)(qi)(qi)，高(gao)(gao)(gao)速(su)(su)調(diao)制(zhi)(zhi)(zhi)器(qi)(qi)(qi)輸出(chu)端(duan)(duan)(duan)接(jie)入(ru)(ru)第(di)(di)二(er)環(huan)行(xing)器(qi)(qi)(qi)的(de)f端(duan)(duan)(duan)。

本(ben)發明的(de)(de)(de)有益效(xiao)(xiao)果(guo)是：首(shou)先，本(ben)發明采用(yong)(yong)(yong)貓眼光(guang)學系統(tong)將光(guang)信(xin)(xin)(xin)(xin)(xin)號(hao)耦合曲面(mian)微透鏡陣列，有效(xiao)(xiao)的(de)(de)(de)增加了通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)視場(chang)(chang)角范圍(wei)(可大于幾十度(du))，克服單模(mo)光(guang)纖(xian)數值孔(kong)徑小(xiao)導(dao)致的(de)(de)(de)視場(chang)(chang)角有限的(de)(de)(de)問題，降低了通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)鏈路(lu)對(dui)準精度(du)的(de)(de)(de)要求，提高了通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)鏈路(lu)的(de)(de)(de)穩定(ding)性(xing)與效(xiao)(xiao)率，增強了自由空(kong)間(jian)光(guang)通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)系統(tong)的(de)(de)(de)實用(yong)(yong)(yong)性(xing)。其次，采用(yong)(yong)(yong)高速光(guang)開(kai)關和控制(zhi)器探測和分隔不(bu)同視場(chang)(chang)角返回鏈路(lu)的(de)(de)(de)信(xin)(xin)(xin)(xin)(xin)號(hao)，使得入射信(xin)(xin)(xin)(xin)(xin)號(hao)能(neng)夠沿著原有入射方(fang)向平(ping)行出(chu)射，實現主端機對(dui)信(xin)(xin)(xin)(xin)(xin)號(hao)的(de)(de)(de)接收(shou)。大視場(chang)(chang)調制(zhi)回復自由空(kong)間(jian)光(guang)通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)系統(tong)在天地衛星(xing)通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)、星(xing)間(jian)通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)、無人(ren)機通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)、地面(mian)基(ji)站(zhan)間(jian)通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)等領域將有廣(guang)泛的(de)(de)(de)應用(yong)(yong)(yong)前景，尤其是商用(yong)(yong)(yong)小(xiao)型衛星(xing)與地面(mian)的(de)(de)(de)通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)、民(min)用(yong)(yong)(yong)小(xiao)型無人(ren)機的(de)(de)(de)通(tong)(tong)信(xin)(xin)(xin)(xin)(xin)等。

附圖說明

圖1為本發(fa)明大視場逆向調制回復自由空間激光(guang)通信裝置示意圖。

具體實施方式

下面(mian)結合附圖對本發明(ming)實施例做(zuo)詳細說明(ming)。

如圖1所示，大視(shi)場逆向調制回復(fu)自由空間激光通信系統，主通信端(duan)機(ji)中，通信發射端(duan)1連接到第一環(huan)行(xing)器(qi)2的(de)a端(duan)口，第一環(huan)行(xing)器(qi)2的(de)c端(duan)口與光電探(tan)測(ce)器(qi)3相連，第一環(huan)行(xing)器(qi)2的(de)b端(duan)口連接耦合透(tou)鏡(jing)4，卡(ka)塞格林望遠鏡(jing)5與耦合透(tou)鏡(jing)4同軸(zhou)放置。

逆向調(diao)制(zhi)回復端(duan)(duan)(duan)(duan)(duan)機中，貓眼(yan)光(guang)(guang)學系統(tong)(tong)6與曲面微透(tou)鏡陣(zhen)(zhen)列(lie)(lie)7同(tong)軸放置，貓眼(yan)光(guang)(guang)學系統(tong)(tong)6通(tong)(tong)過(guo)第一單模(mo)光(guang)(guang)纖(xian)陣(zhen)(zhen)列(lie)(lie)17與1×2耦合器(qi)(qi)(qi)(qi)(qi)陣(zhen)(zhen)列(lie)(lie)8連(lian)接(jie)(jie)。1×2耦合器(qi)(qi)(qi)(qi)(qi)陣(zhen)(zhen)列(lie)(lie)8的高(gao)輸出功(gong)率端(duan)(duan)(duan)(duan)(duan)通(tong)(tong)過(guo)第二(er)單模(mo)光(guang)(guang)纖(xian)陣(zhen)(zhen)列(lie)(lie)9連(lian)接(jie)(jie)至N×1高(gao)速(su)光(guang)(guang)開(kai)(kai)關13，1×2耦合器(qi)(qi)(qi)(qi)(qi)陣(zhen)(zhen)列(lie)(lie)8的低輸出功(gong)率端(duan)(duan)(duan)(duan)(duan)通(tong)(tong)過(guo)第三單模(mo)光(guang)(guang)纖(xian)陣(zhen)(zhen)列(lie)(lie)10連(lian)接(jie)(jie)至高(gao)速(su)光(guang)(guang)電(dian)探(tan)測器(qi)(qi)(qi)(qi)(qi)陣(zhen)(zhen)列(lie)(lie)11，高(gao)速(su)電(dian)探(tan)測器(qi)(qi)(qi)(qi)(qi)陣(zhen)(zhen)列(lie)(lie)11通(tong)(tong)過(guo)電(dian)線連(lian)接(jie)(jie)控(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)12，控(kong)制(zhi)器(qi)(qi)(qi)(qi)(qi)12電(dian)線連(lian)接(jie)(jie)高(gao)速(su)光(guang)(guang)開(kai)(kai)關13，高(gao)速(su)光(guang)(guang)開(kai)(kai)關13的輸出端(duan)(duan)(duan)(duan)(duan)連(lian)接(jie)(jie)至第二(er)環(huan)行(xing)(xing)器(qi)(qi)(qi)(qi)(qi)14的d端(duan)(duan)(duan)(duan)(duan)，第二(er)環(huan)行(xing)(xing)器(qi)(qi)(qi)(qi)(qi)14的e端(duan)(duan)(duan)(duan)(duan)接(jie)(jie)入(ru)光(guang)(guang)纖(xian)放大器(qi)(qi)(qi)(qi)(qi)15，光(guang)(guang)纖(xian)放大器(qi)(qi)(qi)(qi)(qi)15的輸出端(duan)(duan)(duan)(duan)(duan)接(jie)(jie)入(ru)高(gao)速(su)調(diao)制(zhi)器(qi)(qi)(qi)(qi)(qi)16，再將(jiang)高(gao)速(su)調(diao)制(zhi)器(qi)(qi)(qi)(qi)(qi)16輸出端(duan)(duan)(duan)(duan)(duan)接(jie)(jie)入(ru)第二(er)環(huan)行(xing)(xing)器(qi)(qi)(qi)(qi)(qi)14的f端(duan)(duan)(duan)(duan)(duan)。

系(xi)(xi)統(tong)(tong)正常工作(zuo)時，通(tong)(tong)(tong)(tong)(tong)(tong)信發(fa)射端(duan)(duan)(duan)(duan)1發(fa)出通(tong)(tong)(tong)(tong)(tong)(tong)信光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)經(jing)由(you)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)從a端(duan)(duan)(duan)(duan)口進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)第(di)一(yi)(yi)環(huan)(huan)行(xing)(xing)器(qi)(qi)(qi)2，由(you)第(di)一(yi)(yi)環(huan)(huan)行(xing)(xing)器(qi)(qi)(qi)2的(de)b端(duan)(duan)(duan)(duan)口進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)耦合(he)(he)(he)(he)透(tou)鏡4，通(tong)(tong)(tong)(tong)(tong)(tong)信光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)再(zai)通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)卡塞格林式望(wang)遠(yuan)鏡5準直后(hou)發(fa)射進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)自(zi)由(you)空間；經(jing)過(guo)自(zi)由(you)空間信道后(hou)，通(tong)(tong)(tong)(tong)(tong)(tong)信光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)由(you)貓眼光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)學(xue)系(xi)(xi)統(tong)(tong)6接收(shou)(shou)，并入(ru)(ru)(ru)(ru)(ru)射至(zhi)曲(qu)面微(wei)透(tou)鏡陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)7；光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)信號通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)微(wei)透(tou)鏡陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)7耦合(he)(he)(he)(he)經(jing)由(you)第(di)一(yi)(yi)單(dan)模(mo)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)17進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)1×2耦合(he)(he)(he)(he)器(qi)(qi)(qi)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)8，經(jing)1×2耦合(he)(he)(he)(he)器(qi)(qi)(qi)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)8的(de)高(gao)輸(shu)出功(gong)率端(duan)(duan)(duan)(duan)的(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)第(di)二(er)(er)單(dan)模(mo)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)9進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)N×1的(de)高(gao)速(su)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)開關13，經(jing)1×2耦合(he)(he)(he)(he)器(qi)(qi)(qi)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)8的(de)低輸(shu)出功(gong)率端(duan)(duan)(duan)(duan)的(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)第(di)三單(dan)模(mo)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)10進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)高(gao)速(su)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電探(tan)(tan)(tan)(tan)測(ce)(ce)器(qi)(qi)(qi)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)11，高(gao)速(su)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電探(tan)(tan)(tan)(tan)測(ce)(ce)器(qi)(qi)(qi)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)11探(tan)(tan)(tan)(tan)測(ce)(ce)到各(ge)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)的(de)工作(zuo)狀(zhuang)態，將信號傳至(zhi)控(kong)制(zhi)器(qi)(qi)(qi)12，控(kong)制(zhi)器(qi)(qi)(qi)12根據高(gao)速(su)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電探(tan)(tan)(tan)(tan)測(ce)(ce)器(qi)(qi)(qi)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)11的(de)信息(xi)對(dui)高(gao)速(su)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)開關13進(jin)(jin)(jin)行(xing)(xing)控(kong)制(zhi)，將有(you)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)信號通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)的(de)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)通(tong)(tong)(tong)(tong)(tong)(tong)路打開；光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)信號通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)d端(duan)(duan)(duan)(duan)進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)第(di)二(er)(er)環(huan)(huan)行(xing)(xing)器(qi)(qi)(qi)14，從第(di)二(er)(er)環(huan)(huan)行(xing)(xing)器(qi)(qi)(qi)14的(de)e端(duan)(duan)(duan)(duan)進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)放大器(qi)(qi)(qi)15，光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)放大后(hou)的(de)信號傳至(zhi)高(gao)速(su)調制(zhi)器(qi)(qi)(qi)16，信息(xi)加載完成后(hou)進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)第(di)二(er)(er)環(huan)(huan)行(xing)(xing)器(qi)(qi)(qi)14的(de)f端(duan)(duan)(duan)(duan)口，再(zai)從第(di)二(er)(er)環(huan)(huan)行(xing)(xing)器(qi)(qi)(qi)14的(de)d端(duan)(duan)(duan)(duan)口通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)先前(qian)打開的(de)高(gao)速(su)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)開關13，依次經(jing)由(you)第(di)二(er)(er)單(dan)模(mo)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)9、1×2耦合(he)(he)(he)(he)器(qi)(qi)(qi)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)8、第(di)一(yi)(yi)單(dan)模(mo)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)纖(xian)(xian)(xian)(xian)陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)17、曲(qu)面微(wei)透(tou)鏡陣(zhen)(zhen)(zhen)(zhen)(zhen)(zhen)列(lie)(lie)(lie)(lie)7中(zhong)相應視(shi)場的(de)微(wei)透(tou)鏡出射至(zhi)貓眼光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)學(xue)系(xi)(xi)統(tong)(tong)6，再(zai)通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)貓眼光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)學(xue)系(xi)(xi)統(tong)(tong)6準直進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)大氣(qi)信道；通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)卡塞格林望(wang)遠(yuan)鏡5接收(shou)(shou)進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)耦合(he)(he)(he)(he)透(tou)鏡4，進(jin)(jin)(jin)而(er)通(tong)(tong)(tong)(tong)(tong)(tong)過(guo)b端(duan)(duan)(duan)(duan)口經(jing)由(you)第(di)一(yi)(yi)環(huan)(huan)行(xing)(xing)器(qi)(qi)(qi)2從c端(duan)(duan)(duan)(duan)口進(jin)(jin)(jin)入(ru)(ru)(ru)(ru)(ru)高(gao)速(su)光(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)(guang)電探(tan)(tan)(tan)(tan)測(ce)(ce)器(qi)(qi)(qi)3，完成通(tong)(tong)(tong)(tong)(tong)(tong)信。

所(suo)述通(tong)信發射端(duan)1包括激光(guang)器、外置電光(guang)調制器和光(guang)纖放(fang)大器，可實現高功率高速率激光(guang)調制信號的(de)產生。

所述(shu)貓眼光學系統(tong)(tong)6為(wei)三組(zu)以上雙分離透鏡組(zu)組(zu)成的(de)大視場光學系統(tong)(tong)，可實現貓眼效應。

所述曲(qu)(qu)面(mian)(mian)微透鏡(jing)陣列(lie)(lie)7位于貓眼(yan)光(guang)學(xue)系(xi)(xi)統6的(de)焦平面(mian)(mian)。貓眼(yan)光(guang)學(xue)系(xi)(xi)統6可將通(tong)信(xin)光(guang)聚焦于曲(qu)(qu)面(mian)(mian)微透鏡(jing)陣列(lie)(lie)7表(biao)面(mian)(mian)，選(xuan)用合適的(de)數值孔徑(jing)，調制回(hui)復端機可高耦合效率接收(shou)、發射信(xin)號。貓眼(yan)光(guang)學(xue)系(xi)(xi)統6與曲(qu)(qu)面(mian)(mian)微透鏡(jing)陣列(lie)(lie)7的(de)組(zu)合，可使系(xi)(xi)統以大視場(chang)角進行通(tong)信(xin)，并且在邊(bian)緣視場(chang)仍能夠(gou)保(bao)持較高的(de)耦合效率。

所述曲面微(wei)(wei)透鏡陣列7中(zhong)器(qi)件數值孔徑，需(xu)要根(gen)據(ju)所設(she)計的貓眼光(guang)學系(xi)統、微(wei)(wei)透鏡陣列曲率(lv)大(da)小進行計算選取(qu)，使耦合效率(lv)最大(da)化。

所述曲面微透鏡陣列(lie)7的(de)密(mi)集(ji)程度要根(gen)據不同應(ying)用情況對視場連續(xu)性(xing)的(de)需(xu)求(qiu)，進行合理的(de)設(she)置。

所述第一單模(mo)光纖(xian)陣列17的(de)光纖(xian)端面(mian)位于曲面(mian)微(wei)透鏡(jing)陣列7的(de)焦平(ping)面(mian)。

使用(yong)耦合器陣(zhen)列8將各束光(guang)(guang)纖的(de)(de)傳(chuan)輸狀態提取，通(tong)過控(kong)制(zhi)系統12控(kong)制(zhi)高速光(guang)(guang)開(kai)關13的(de)(de)光(guang)(guang)通(tong)路(lu)選取，可使得(de)返回光(guang)(guang)信(xin)號按原路(lu)返回，從調制(zhi)回復端機的(de)(de)出(chu)射光(guang)(guang)沿入射光(guang)(guang)的(de)(de)方向返回。

本(ben)發(fa)明(ming)隨(sui)著各類(lei)器件的(de)集成化、小型化，響應時(shi)間的(de)不斷縮小，該系統的(de)性能(neng)可(ke)進一步提升，成本(ben)更低，體積與重量以(yi)及功(gong)耗進一步降低，應用會更為廣泛。