鎮ㄥソ锛屾杩庝締鍒扮董搴浕瀛愬競鍫寸恫(w菐ng)
鐧婚寗 | 鍏嶈不(f猫i)娉ㄥ唺
銆�銆�DWDM鏄珮瀵嗗害鍒嗘尝澶氬伐(DenseWavelengthDivisionMultiplexing锛孌WDM)鐨勭啊绋�锛孌WDM鎶�琛�(sh霉)鏄埄鐢ㄥ柈妯″厜绾栦綆鎼嶈�楀崁(q奴)鐨勫法澶у付瀵�锛屽皣涓嶅悓闋荤巼锛堟尝闀凤級鐨勫厜淇¤櫉娣峰悎鍦ㄤ竴璧烽��(j矛n)琛屽偝杓革紝閫欎簺涓嶅悓娉㈤暦鐨勫厜杓夋尝鎵�鎵胯級鐨勬暩(sh霉)瀛椾俊铏熷彲浠ユ槸鐩稿悓閫熺巼銆佺浉鍚屾暩(sh霉)鎿�(j霉)鏍煎紡锛屼篃鍙互鏄笉鍚岄�熺巼銆佷笉鍚屾暩(sh霉)鎿�(j霉)鏍煎紡銆傛尝鍒嗗京(f霉)鐢ㄧ恫(w菐ng)绲�(lu貌)鎿�(ku貌)瀹归�氶亷鍦ㄥ厜绾栦腑澧炲姞鏂扮殑娉㈤暦閫氶亾渚嗗(sh铆)鐝�(xi脿n)銆�
銆�銆�DWDM 绯荤当(t菕ng)鎸変竴鏍瑰厜绾栦腑鍌宠几?sh霉)澧撻菛鏈楄弮铚楄櫥鍊偓鏄洐鍚戠殑鍙互鍒嗘垚鍠簴鍠� 鍚戝拰鍠簴闆欏悜鍏╃ó锛屾寜DWDM 绯荤当(t菕ng)鍜屽鎴剁瑷�(sh猫)鍌欎箣闁撴槸鍚︽湁鍏夋尝闀疯綁(zhu菐n)鎻涘柈鍏� OTU 鍒嗘垚闁嬫斁寮忓拰闆嗘垚寮忓叐绋�銆�
銆�銆�1 鍠簴鍠悜DWDM
銆�銆�濡傚湒1鎵�绀�锛屼竴鏍瑰厜绾栧彧瀹屾垚涓�鍊�(g猫)鏂瑰悜鍏変俊铏熺殑鍌宠几锛屽弽鍚戝厜淇¤櫉鐨勫偝杓哥敱 鍙︿竴鏍瑰厜绾栦締瀹屾垚銆傚洜姝�锛屽悓涓�娉㈤暦鍦ㄥ叐鍊�(g猫)鏂瑰悜涓婂彲浠ラ噸寰�(f霉)鍒╃敤銆�
銆�銆�鍦�1鍠簴鍠悜鍌宠几?sh霉)鑵刉DM 绯荤当(t菕ng)
銆�銆�閫欑óDWDM 绯荤当(t菕ng)鍙互鍏呭垎鍒╃敤鍏夌簴鐨勫法澶у付瀵硣婧�锛屼娇涓�鏍瑰厜绾栫殑鍌宠几瀹归噺 鎿�(ku貌)澶у咕鍗佸��銆佸咕鐧惧�嶇洿鑷充笂鍗冨��銆傚湪闀烽�旂恫(w菐ng)涓�锛屽彲浠ユ牴鎿�(j霉)瀵�(sh铆)闅涙キ(y猫)鍕�(w霉)閲忕殑闇�瑕� 閫愭澧炲姞娉㈤暦閫氶亾鐨勬暩(sh霉)閲忎締瀵�(sh铆)鐝�(xi脿n)鎿�(ku貌)瀹�锛屽崄鍒嗛潏娲�銆傚湪涓嶆竻妤氬(sh铆)闅涘厜绾滆壊鏁ｇ殑 鍓嶆彁涓嬶紝涔熸槸涓�绋毇鏅�(sh铆)閬垮厤閲囩敤瓒呴珮閫烼DM 绯荤当(t菕ng)鑰屽埄鐢ㄥ鍊�(g猫)2.5Gbit/s 绯荤当(t菕ng) 瀵�(sh铆)鐝�(xi脿n)瓒呭ぇ瀹归噺鍌宠几?sh霉)姘栦緞宸�?/FONT>
銆�銆�2 鍠簴闆欏悜DWDM
銆�銆�濡傚湒2鎵�绀�锛屽湪涓�鏍瑰厜绾栦腑瀵�(sh铆)鐝�(xi脿n)鍏╁��(g猫)鏂瑰悜鍏変俊铏熺殑鍚屾檪(sh铆)鍌宠几锛屽叐鍊�(g猫)鏂瑰悜鍏変俊 铏熸噳(y墨ng)瀹夋帓鍦ㄤ笉鍚屾尝闀蜂笂銆�
銆�銆�鍦�2 鍠簴闆欏悜鍌宠几?sh霉)鑵刉DM 绯荤当(t菕ng)
銆�銆�鍠簴闆欏悜鍌宠几鍏佽ū鍠牴鍏夌簴鏀滃付鍏ㄩ洐宸ラ�氶亾锛岄��?锛熸ⅱ鍛樿憪铚楅ɑ楝忔暭?ji茅)绱勪竴鍗� 鐨勫厜绾栧櫒浠躲�傜敱浜庡叐鍊�(g猫)鏂瑰悜鍌宠几?sh霉)鐢风洏鏌屽敜鎹�偖a(ch菐n)鐢烣WM锛堝洓娉㈡贩闋伙級鐢�(ch菐n)鐗�锛� 鍥犳鍏剁附鐨凢WM 鐢�(ch菐n)鐗╂瘮鍠簴鍠悜鍌宠几灏戝緢澶氥�傜己榛�(di菐n)鏄┎绯荤当(t菕ng)闇�瑕侀噰鐢ㄧ壒娈婄殑 鎺柦渚嗗皪浠樺厜鍙嶅皠锛堝寘鎷敱浜庡厜鎺ラ牠寮曡捣鐨勯洟鏁ｅ弽灏勫拰鍏夌簴鏈韩鐨勭憺鍒╂暎 灏勶級锛屼互闃插寰戝共鎿�锛涚暥(d膩ng)闇�瑕佸皣鍏変俊铏熸斁澶т互寤堕暦鍌宠几璺濋洟鏅�(sh铆)锛屽繀闋堥噰鐢ㄩ洐 鍚戝厜绾栨斁澶у櫒锛屼絾鍏跺櫔鑱茬郴鏁�(sh霉)绋嶅樊銆�
銆�銆�3 闁嬫斁寮廌WDM
銆�銆�闁嬫斁寮廌WDM 绯荤当(t菕ng)鐨勭壒榛�(di菐n)鏄皪寰�(f霉)鐢ㄧ祩绔厜鎺ュ彛娌掓湁鐗瑰垾鐨勮姹�锛屽彧瑕侀�欎簺鎺� 鍙ｇ鍚圛TU-T G.957/G.691 寤鸿鐨勫厜鎺ュ彛妯�(bi膩o)婧�(zh菙n)銆侱WDM 绯荤当(t菕ng)閲囩敤娉㈤暦杞�(zhu菐n)鎻涙妧 琛�(sh霉)锛屽皣寰�(f霉)鐢ㄧ祩绔殑鍏変俊铏熻綁(zhu菐n)鎻涙垚鎸囧畾鐨勬尝闀�锛屼笉鍚岀祩绔ō(sh猫)鍌欑殑鍏変俊铏熻綁(zhu菐n)鎻涙垚 涓嶅悓鐨勭鍚圛TU-T G.692 寤鸿鐨勬尝闀�锛岀劧鍚庨��(j矛n)琛屽悎娉�銆�
銆�銆�4 闆嗘垚寮廌WDM
銆�銆�闆嗘垚寮廌WDM 绯荤当(t菕ng)涓嶉噰鐢ㄦ尝闀疯綁(zhu菐n)鎻涙妧琛�(sh霉)锛屽畠瑕佹眰寰�(f霉)鐢ㄧ祩绔厜淇¤櫉鐨勬尝闀风鍚� DWDM 绯荤当(t菕ng)鐨勮(gu墨)鑼�锛屼笉鍚岀殑寰�(f霉)鐢ㄧ祩绔ō(sh猫)鍌欐帴鍏WDM 绯荤当(t菕ng)鐨勪笉鍚屾尝闀烽�氶亾锛� 寰炶�屽湪寰�(f霉)鐢ㄥ櫒涓畬鎴愬悎娉�銆� 鏍规摎(j霉)宸ョ▼鐨勯渶瑕佸彲浠ラ伕鐢ㄤ笉鍚岀殑鎳�(y墨ng)鐢ㄥ舰寮忋�傚湪瀵�(sh铆)闅涙噳(y墨ng)鐢ㄤ腑锛岄枊鏀惧紡DWDM 鍜� 闆嗘垚寮廌WDM 鍙互娣峰悎浣跨敤銆�
銆�銆�1. 瓒呭ぇ瀹归噺
銆�銆�鐩墠浣跨敤鐨勬櫘閫氬厜绾栧彲鍌宠几?sh霉)鑶割潙鎹犲憶杌愭尲?锛屼絾鍏跺埄鐢ㄧ巼閭勫緢浣�銆備娇鐢―WDM 鎶�琛�(sh霉)鍙互浣夸竴鏍瑰厜绾栫殑鍌宠几瀹归噺姣斿柈娉㈤暦鍌宠几瀹归噺澧炲姞骞惧��銆佸咕鍗佸�嶄箖鑷冲咕 鐧惧��锛屽洜姝や篃绡�(ji茅)鐪佷簡鍏夌簴璩囨簮銆�
銆�銆�2. 鏁�(sh霉)鎿�(j霉)閫忔槑鍌宠几 鐢变簬DWDM 绯荤当(t菕ng)鎸変笉鍚岀殑鍏夋尝闀烽��(j矛n)琛屽京(f霉)鐢ㄥ拰瑙ｅ京(f霉)鐢紝鑰岃垏淇¤櫉鐨勯�熺巼鍜岄浕瑾�(di脿o) 鍒舵柟寮忕劇闂�(gu膩n)锛屽嵆灏嶆暩(sh霉)鎿�(j霉)鏄�滈�忔槑鈥濈殑銆傚洜姝ゅ彲浠ュ偝杓哥壒鎬у畬鍏ㄤ笉鍚岀殑淇¤櫉锛� 瀹屾垚鍚勭ó闆讳俊铏熺殑缍滃悎鍜屽垎闆�锛屽寘鎷暩(sh霉)瀛椾俊铏熷拰妯℃摤淇¤櫉鐨勭稖鍚堝拰鍒嗛洟銆�
銆�銆�3. 绯荤当(t菕ng)鍗囩礆鏅�(sh铆)鑳介檺搴﹀湴淇濊(h霉)宸叉湁鎶曡硣 鍦ㄧ恫(w菐ng)绲�(lu貌)鎿�(ku貌)鍏呭拰鐧�(f膩)灞曚腑锛岀劇闇�灏嶅厜绾滅窔璺��(j矛n)琛屾敼閫�锛屽彧闇�鍗囩礆鍏夌櫦(f膩)灏勬(j墨)鍜屽厜鎺� 鏀舵(j墨)鍗冲彲瀵�(sh铆)鐝�(xi脿n)锛屾槸鐞嗘兂鐨勬摯(ku貌)瀹规墜娈碉紝涔熸槸寮曞叆瀵付妤�(y猫)鍕�(w霉)鐨勬柟渚挎墜娈�銆�
銆�銆�4. 楂樺害鐨勭祫缍�(w菐ng)缍�(j墨ng)婵�(j矛)鎬у拰鍙潬鎬� 鍒╃敤DWDM鎶�琛�(sh霉)妲�(g貌u)鎴愮殑鏂板瀷閫氫俊缍�(w菐ng)绲�(lu貌)姣旂敤鍌崇当(t菕ng)鐨勯浕鏅�(sh铆)鍒嗗京(f霉)鐢ㄦ妧琛�(sh霉)绲勬垚鐨勭恫(w菐ng)绲�(lu貌) 瑕佸ぇ澶х啊鍖栵紝鑰屼笖缍�(w菐ng)绲�(lu貌)灞ゆ鍒嗘槑锛屽悇绋キ(y猫)鍕�(w霉)鐨勮(di脿o)搴﹀彧闇�瑾�(di脿o)鏁寸浉鎳�(y墨ng)鍏変俊铏熺殑娉� 闀峰嵆鍙(sh铆)鐝�(xi脿n)銆傜敱浜庣恫(w菐ng)绲�(lu貌)绲�(ji茅)妲�(g貌u)绨″寲銆佸堡娆″垎鏄庝互鍙婃キ(y猫)鍕�(w霉)瑾�(di脿o)搴︽柟渚匡紝鐢辨鑰屽付渚� 缍�(w菐ng)绲�(lu貌)鐨勭稉(j墨ng)婵�(j矛)鎬у拰鍙潬鎬ф槸椤�屾槗瑕嬬殑銆�
銆�銆�5. 鍙(g貌u)鎴愬叏鍏夌恫(w菐ng)绲�(lu貌) 鍙互闋�(y霉)瑕�锛屽湪鏈締鍙湜瀵�(sh铆)鐝�(xi脿n)鐨勫叏鍏夌恫(w菐ng)绲�(lu貌)涓�锛屽悇绋浕淇℃キ(y猫)鍕�(w霉)鐨勪笂涓�銆佷氦鍙夐�ｆ帴 绛夐兘鏄湪鍏夊堡涓婇�氶亷灏嶅厜淇¤櫉娉㈤暦鐨勬敼璁婂拰瑾�(di脿o)鏁翠締瀵�(sh铆)鐝�(xi脿n)鐨�銆傚洜姝�锛孌WDM 鎶� 琛�(sh霉)灏囨槸瀵�(sh铆)鐝�(xi脿n)鍏ㄥ厜缍�(w菐ng)鐨勯棞(gu膩n)閸垫妧琛�(sh霉)涔嬩竴锛岃�屼笖DWDM绯荤当(t菕ng)鑳借垏鏈締鐨勫叏鍏夌恫(w菐ng)鍏煎锛� 灏囦締鍙兘鏈冨湪宸茬稉(j墨ng)寤烘垚鐨凞WDM 缍�(w菐ng)绲�(lu貌)鐨勫熀绀�(ch菙)涓婂(sh铆)鐝�(xi脿n)閫忔槑鐨勩�佸叿鏈夐珮搴︾敓瀛樻�� 鐨勫叏鍏夌恫(w菐ng)绲�(lu貌)銆�
銆�銆�1.闆荤恫(w菐ng)璺紨閫�(j矛n)鑷冲厜缍�(w菐ng)璺�
銆�銆�DWDM鎶�琛�(sh霉)濂犲畾浜嗙敱闆荤恫(w菐ng)璺紨閫�(j矛n)鑷冲厜缍�(w菐ng)璺箣鍩虹(ch菙)锛屽偝绲�(t菕ng)鐨勯浕缍�(w菐ng)璺�(Electronic Networking)鐒℃硶鐩存帴鍦ㄥ厜灞�(Optical Layer)閫�(j矛n)琛屽宸�(multiplexing)銆佸垏鎻�(switching)銆佹垨璺敱鏀规帴(routing)绛夊嫊(d貌ng)浣�锛屽湪缍�(w菐ng)璺瘈(ji茅)榛�(di菐n)闇�浣跨敤鍏夐浕杞�(zhu菐n)鎻涜ō(sh猫)鍌欏皣鍏変俊铏熻綁(zhu菐n)鎻涚偤闆讳俊铏熷啀灏囬浕淇¤櫉杞�(zhu菐n)鍥炲厜淇¤櫉锛屽姝や竴渚嗙附楂斿偝杓搁�熺巼鏈冨洜浣跨敤鍏夐浕杞�(zhu菐n)鎻涜ō(sh猫)鍌欒�屽彈鍒伴檺鍒�锛岀劇娉曞皣鍏夌簴鑸囩敓淇变締鐒￠檺闋诲鐨勬經鍔涘ソ濂界櫦(f膩)鎻�銆�
銆�銆�浠WDM鐐烘(j墨)鍒朵箣鍏夌恫(w菐ng)璺彲鐩存帴鍦ㄥ厜灞や綔淇¤櫉涔嬮亱(y霉n)浣滀締瑙ｆ焙涓婅堪鍟忛锛屽洜姝ゅ厠鏈嶄簡鍌崇当(t菕ng)鍌宠几鐡堕牳鑰屽付渚嗕簡鈥漋irtualfibre鈥濈殑瑙�蹇�锛屽皣鏃㈡湁鍏夌簴浣滄渶鏈夋晥鐜囩殑鍒╃敤銆�
銆�銆�2.缍�(w菐ng)璺妯ｅ寲鐨勬湇鍕�(w霉)
銆�銆�DWDM鍜屽偝閫侀�熺巼(BiteRate)鍙婅(gu墨)绱�(Protocols)鐒￠棞(gu膩n)锛屼篃灏辨槸瑾彲鎻愪緵鍜屾湇鍕�(w霉)褰㈠紡瀹屽叏鐒￠棞(gu膩n)鐨勫偝閫佺恫(w菐ng)璺�锛屼緥濡�:涓�鍊�(g猫)灏嶅偝閫侀�熺巼鍙婅(gu墨)绱勫畬鍏ㄩ�忛��(Transparent)鐨凞WDM缍�(w菐ng)璺彲鍜孉TM銆両P銆丼DH绛変俊铏熶粙鎺�锛屾彁渚涚恫(w菐ng)璺妯ｅ寲鐨勬湇鍕�(w霉)銆�
銆�銆�3.闄嶄綆鎴愭湰銆佹彁鍗囨湇鍕�(w霉)鍝佽唱(zh矛)
銆�銆�鐢变簬鍦ㄥ厜灞ら��(j矛n)琛屼俊铏熺殑鎸囬厤鎴栬(di脿o)搴︼紝鐩歌純浜庡偝绲�(t菕ng)涓婂湪闆诲堡鐨勯牷瀵(di脿o)搴︿締鐨勬洿绨″柈鑰屾湁鏁堢巼锛屽彲娓涘皯璨�(f猫i)鐢ㄦ敮鍑�銆傚彟澶栧湪缍�(w菐ng)璺笂鍏夌簴琚垏鏂�(cablecut)鎴栧厜淇¤櫉鏁呴殰鏅�(sh铆)锛屽彲鍦ㄥ厜灞ら��(j矛n)琛屼俊铏熶繚璀�(h霉)鍒囨彌鎴栫恫(w菐ng)璺矾鐢卞洖寰�(f霉)(Restoration)鐨勫嫊(d貌ng)浣滐紝鐩稿皪浜庡偝绲�(t菕ng)涓婂湪闆诲堡浣滃洖寰�(f霉)鐨勫嫊(d貌ng)浣滃叾鍒囨彌鏅�(sh铆)闁撹純鐭�锛屼娇缍�(w菐ng)璺箣鍙敤搴�(availability)鎻愰珮鑰屾敼鍠勬湇鍕�(w霉)鍝佽唱(zh矛)銆�
銆�銆�4.鎻愬崌鍌宠几璺濋洟鍙婂鍔犵恫(w菐ng)璺閲�
銆�銆�楂橀�熶箣STM-64TDM(TimeDivisionMultiplexing)鍌宠几涓婄殑鍟忛鍦ㄤ簬鍏夌簴鐨勫垎鏁�(Dispersion)鐝�(xi脿n)璞″毚(y谩n)閲�锛屽皪浜庡偝閫佷箣鍏変俊铏熸渻鐢�(ch菐n)鐢熷姡鍖栨晥鎳�(y墨ng)锛屽洜姝�锛岃嫢涓嶄娇鐢ㄩ浕瀛愬紡鍐嶇敓鍣ㄦ垨鍏朵粬瑁�(b菙)鍎熸妧宸�锛岀悊璜栦笂STM-64淇¤櫉鍙湪G.652鍏夌簴鍏�(n猫i)鍌抽�佺磩60鍏噷銆傝嫢浠�8鍊�(g猫)娉㈤暦鐨凞WDM鎶�琛�(sh霉)鍌抽��锛屾瘡鍊�(g猫)娉㈤暦鐐�2.5Gb/s涔嬩俊铏�锛屽叾鍌宠几瀹归噺鍙偤20Gb/s锛屽叾鍌宠几璺濋洟鍙仈(d谩)600鍏噷浠ヤ笂鑰屼笉闇�闆诲瓙寮忓啀鐢熷櫒锛岃�岄渶瑕佸厜鏀惧ぇ鍣�銆�
銆�銆�STM-64鐨勫宸ュ皪浜庢敮娴佷俊铏�(Tributary)鐨勯牷鐜囪垏鏍煎紡锛岄�氬父閮芥湁涓�瀹氱殑闄愬埗锛岃�孌WDM鐨勫宸ュ咕涔庡畬鍏ㄤ笉瑷�(sh猫)闄�锛孭DH銆丄TM銆丼DH銆佸強IP绛変换浣曚俊铏熸牸寮忕殕鍙几鍏�锛屽鍔犵恫(w菐ng)璺偝杓镐箣褰堟��銆傝嫢鏈締鍏夊鍙栧宸ユ(j墨)(OpticalAdd-DropMultiplexer,OADM)鍙婂厜浜ゆ帴姗�(j墨)(OpticalCross-Connect,OXC)鐨勫晱涓�锛屽彲鐩存帴浠ュ厜娉㈤暦鐐轰氦鎺ュ柈浣嶏紝鍏嶉櫎O/E/O鐨勮綁(zhu菐n)鎻涙椹�锛屽彲鎻愬崌缍�(w菐ng)璺(di脿o)搴︾殑鏁堢巼銆傚湪瑙ｆ焙鑸囨棩淇卞鐨勭敤鎴堕牷瀵渶姹傚強鎻愬崌缍�(w菐ng)璺閲忎箣鏂规涓�锛孌WDM鍦ㄦ妧琛�(sh霉)涓婃彁渚涗簡涓嶅悓涔嬮伕鎿囥��
銆�銆�鐩墠DWDM鐨勭浉闂�(gu膩n)瑷�(sh猫)鍌欐湁涓嬪垪骞剧ó锛�
銆�銆�(1)鍏夋斁澶у櫒锛�(2)DWDM绲傜姗�(j墨)锛�(3)鍏夊鍙栧宸ユ(j墨)锛�(4)鍏変氦鎺ユ(j墨)銆�
銆�銆�灏嘍WDM鐩搁棞(gu膩n)瑷�(sh猫)鍌欎箣涓昏鍔熻兘鏁樿堪濡備笅锛�
銆�銆�3.1鍏夋斁澶у櫒
銆�銆�鍏锋湁鍏変俊铏熸牸寮忚垏浣嶅厓閫熺巼涔嬮�忛�氭��锛岄亱(y霉n)浣滀簬1550nm鍗�(q奴)鍩熸湁鐩哥暥(d膩ng)楂樹箣澧炵泭銆侀珮鍏夎几鍑哄姛鐜囧強浣庨洔瑷婃寚鏁�(sh霉)锛屽厜鏀惧ぇ鍣ㄤ緷鎿�(j霉)涓嶅悓鎳�(y墨ng)鐢ㄦ湁涓嬪垪涓夌ó锛�
銆�銆�鍏夊姛鐜囨斁澶у櫒(BoosterAmplifier,BA)
銆�銆�鍏夊墠缃斁澶у櫒(Pre-Amplifier,PA)
銆�銆�鍏夌窔璺斁澶у櫒(LineAmplifier,LA)
銆�銆�鐩墠鎳�(y墨ng)鐢ㄤ簬澶氭尝闀稤WDM绯荤当(t菕ng)涔嬪厜鏀惧ぇ鍣ㄥぇ閮ㄥ垎鏄懟閴哄厜绾栨斁澶у櫒(Erbium-DopedFiberAmplifier,EDFA)鍏朵富瑕佺祫鎴愬寘鍚竴娈垫懟閴哄厜绾�銆佸公娴﹂浄灏�(PumpLaser)鍙奃WDM绲勪欢(鐢ㄤ締娣峰悎鍌宠几鍏変俊铏熷強骞郸鍏夎几鍑�)銆侲DFA鐩存帴鏀惧ぇ1550nm鍗�(q奴)鍩熺劇闇�浣跨敤闆诲瓙寮忓啀鐢熷櫒锛屽彲鍦ㄧ浉鐣�(d膩ng)澶т箣娉㈤暦鑼冨湇鍏�(n猫i)鎻愪緵骞冲潶澧炵泭锛屼害鍗冲柈涓�EDFA鑳藉悓鏅�(sh铆)鎻愪緵澶氬��(g猫)娉㈤暦閫氳矾涔嬪鐩�,宸插彇浠ｅぇ閮ㄥ垎涔嬪啀鐢熷櫒鎳�(y墨ng)鐢�锛屾垚鐐洪暦閫斿厜绾栫恫(w菐ng)璺箣妲�(g貌u)鎴愰儴鍒�銆�
銆�銆�3.2 DWDM绲傜姗�(j墨)
銆�銆�DWDM绲傜姗�(j墨)閰嶅悎鍏夋斁澶у櫒鍙噳(y墨ng)鐢ㄤ簬鍏夊偝杓哥恫(w菐ng)璺�,鍦ㄥ偝閫佺鍙帴鍙楀鍊�(g猫)娉㈤暦涔嬪厜淇¤櫉杓稿叆锛屽苟杞�(zhu菐n)鎻涙垚绗﹀悎ITU-TG.692鍥哄畾娉㈤暦涔嬪厜淇¤櫉锛岀稉(j墨ng)澶氬伐娣峰悎銆佸厜鏀惧ぇ鍚庡偝鑷冲厜鍌抽�佺恫(w菐ng)璺�锛屽湪鎺ユ敹绔彲鎺ユ敹渚嗚嚜鍏夊偝閫佺恫(w菐ng)璺箣淇¤櫉锛岀稉(j墨ng)鍏夊墠缃斁澶�銆佽В澶氬伐銆佸強鍏夋烤娉㈠櫒鍚庤几鍑�銆�
銆�銆�DWDM绲傜姗�(j墨)鏈変笅鍒楀叐绋瀷寮忥細
銆�銆�(1)闁嬫斁寮忕郴绲�(t菕ng)(Open System)锛氶�氬父绋辩偤杞�(zhu菐n)闋诲紡(transponder-based)DWDM锛屽湪SDH鍙奃WDM瑷�(sh猫)鍌欓枔鏈夎綁(zhu菐n)闋诲櫒锛屽彲浠嬫帴涓嶅悓寤犲鐨凷DH瑷�(sh猫)鍌欍��
銆�銆�(2)鏁村悎寮忕郴绲�(t菕ng)(Integrated System )锛氶�氬父绋辩偤琚嫊(d貌ng)寮�( passived )DWDM锛孲DH瑷�(sh猫)鍌欏凡鍏锋湁ITU-TG.692涔嬩粙闈㈠姛鑳�銆�
銆�銆�闁嬫斁寮忕郴绲�(t菕ng)鍜屾暣鍚堝紡绯荤当(t菕ng)涔嬪劒(y艒u)缂洪粸(di菐n)涔嬫瘮杓冨琛�1鎵�绀�
銆�銆�琛�1闁嬫斁寮忕郴绲�(t菕ng)鍜屾暣鍚堝紡绯荤当(t菕ng)涔嬫瘮杓�
銆�銆�闁嬫斁寮忕郴绲�(t菕ng)鍜屾暣鍚堝紡绯荤当(t菕ng)涔嬫瘮杓�
銆�銆�3.3鍏夊鍙栧宸ユ(j墨)(OpticalAdd-DropMultiplexer,OADM)
銆�銆�锛革几鍏夊鍙栧宸ユ(j墨)(OpticalAdd-DropMultiplexer,OADM)锛屽彲浠ュ湪涓�鍊�(g猫)鍏夊偝杓哥恫(w菐ng)璺箣涓枔绔欏鍏ユ垨鍙栧嚭鍊�(g猫)鍒ョ殑娉㈤暦閫氶亾銆備竴鑸�岃█锛屽畠鏄疆浜庡叐鍊�(g猫)DWDM绲傜姗�(j墨)涔嬮枔渚嗕唬鏇挎煇涓�鍏夋斁澶у櫒锛岀洰鍓嶅ぇ閮ㄤ唤寤犲宸茬爺鍒跺嚭鍥哄畾鍨嬪厜濉炲彇澶氬伐姗�(j墨)锛屽畠灏嶄簬瑕佸鍏ユ垨鍙栧嚭鐨勬尝閬撳繀闋堜簨鍏堣ō(sh猫)瀹�锛岃嚦浜庡彟涓�绋ū鐐哄彲浠绘剰瑷�(sh猫)瀹氫箣鍏夊鍙栧宸ユ(j墨)锛屽墖鍙棄鐢卞閮ㄦ寚浠ゅ皪浜庤濉炲叆鎴栧彇鍑虹殑娉㈤亾浣滀换鎰忕殑鎸囬厤銆�
銆�銆�3.4鍏変氦鎺ユ(j墨)(OpticalCross-Connect,OXC)
銆�銆�鍦ㄩ浕淇＄恫(w菐ng)璺腑浣跨敤浜嶥WDM娉㈤暦鎰堜締鎰堝鏅�(sh铆)锛屽皪浜庨�欎簺娉㈤亾闋堜綔褰堟�т箣瑾�(di脿o)搴︽垨璺敱涔嬫敼鎺�锛屾鏅�(sh铆)蹇呴爤钘夌敱鍏変氦鎺ユ(j墨)锛屼締瀹屾垚姝ら爡(xi脿ng)鍔熻兘锛岄�氬父瀹冨彲缃簬缍�(w菐ng)璺笂閲嶈鐨勫尟鎺ラ粸(di菐n)锛屽湪鍏惰几鍏ョ鍙帴鏀朵笉鍚屾尝闀蜂俊铏�锛岀稉(j墨ng)鐢卞厜浜ゆ帴姗�(j墨)灏囧畠鍊戞寚閰嶅埌浠讳竴杓稿嚭绔紝鍏変氦鎺ユ(j墨)鍦ㄩ�ｆ帴鑷矰WDM鍏夌簴鏅�(sh铆)鏈変互涓嬩笁绋垏鎻涙柟寮忥細
銆�銆�(1)鍏夌簴鍒囨彌(Fiberswitching)锛氬彲閫ｆ帴浠讳竴杓稿叆鍏夌簴鍒颁换涓�杓稿嚭鍏夌簴锛屼絾涓嶆渻鏀硅畩鍏夌簴鍏�(n猫i)涔嬫尝闀枫��
銆�銆�(2)娉㈤暦鍒囨彌(Wavelengthswitching)锛氬悓涓�杓稿叆鍏夌簴鍏�(n猫i)涔嬪鍊�(g猫)娉㈤暦锛屽彲鍒嗗垾浜ゆ帴鑷充笉鍚岃几鍑哄厜绾栵紝杓冩湁褰堟��銆�
銆�銆�(3)娉㈤暦杞�(zhu菐n)鎻�(Wavelengthconversion)锛氫笉鍚岃几鍏ュ厜绾栧収(n猫i)涔嬬浉鍚屾尝闀�锛岀稉(j墨ng)杞�(zhu菐n)鎻涘悗鍙互涓嶅悓娉㈤暦鍖叆鍚屼竴杓稿嚭鍏夌簴銆�
銆�銆�鍏変氦鎺ユ(j墨)鍙彁渚涗笅鍒楀咕绋噳(y墨ng)鐢�:
銆�銆�(1)璺敱鍥炲京(f霉)
銆�銆�鍦ㄥ厜绾栬鍒囨柗(CableCut)鎴栬┍鍕�(w霉)闆嶅鏅�(sh铆)锛屽皪浜庣恫(w菐ng)璺笂姝ｅ湪閬�(y霉n)浣滅殑娉㈤亾鍙彁渚涜嚜鍕�(d貌ng)淇濊(h霉)鍒囨彌鍔熻兘锛屽挨鍏跺皪浜庤垏鏃ヤ勘澧炵殑鏁�(sh霉)鎿�(j霉)瑭卞嫏(w霉)(濡侷P/WDM)灏囩泭褰㈤噸瑕侊紝鍥�?y脿n)闀甈/WDM瀹冩矑鏈夊湪SDH閫欏堡浣滀繚璀�(h霉)銆�
銆�銆�(2)娉㈤暦绠＄悊
銆�銆�鍦ㄧ恫(w菐ng)璺腑灏嶄簬DWDM绯荤当(t菕ng)涓箣澶氱ó娉㈤暦鍙綔浠绘剰浜ゆ帴鎴栨寚閰�锛屼緥濡�:鍙皣閮ㄤ唤娉㈤暦绉熺郸鐗瑰畾瀹㈡埗鎴栧叾瀹冪殑缍�(w菐ng)璺キ(y猫)鑰�銆�
銆�銆�(3)瑭卞嫏(w霉)涔嬭(di脿o)搴﹀拰闆嗕腑
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