鍏夋ā鍧楃殑閲嶈鍙傛暟-凯发88

sfp
鍥剧墖
鏂囩珷姝f枃
鍏夋ā鍧楃殑閲嶈鍙傛暟
   2012-10-31 10:19:49    鏂囧瓧锛氥€?a href="javascript:fontzoom(16)">澶?/a>銆戙€?a href="javascript:fontzoom(14)">涓?/a>銆戙€?a href="javascript:fontzoom(12)">灏?/a>銆?/div>
鎽樿锛?/span>鍚勭灏佽鐨勫厜妯″潡锛涘sfp,gbic,xfp,sfp 绛夊厜妯″潡閮藉瓨鍦ㄤ竴浜涘弬鏁伴渶瑕佺壒鍒敞鎰忋€傛湰鏂囧皢璇︾粏浠嬬粛杩欎簺鍙傛暟鐨勫惈涔夈€?/div>

鍙戝皠鍏夊姛鐜囨寚鍙戝皠绔殑鍏夊己銆?/div>
骞冲潎鍙戦€佸厜鍔熺巼(txlop:optical average power) 骞冲潎鍙戦€佸厜鍔熺巼鎸囦俊鍙烽€昏緫涓?鏃剁殑鍏夊姛鐜囦笌涓?鏃剁殑鍏夊姛鐜囩殑绠楁湳骞冲潎鍊? p0 p1 pavg = 2(dbm)

娑堝厜姣?er:extinctiratio) 淇″彿閫昏緫涓?鏃剁殑鍏夊姛鐜囦笌涓?鏃剁殑鍏夊姛鐜囩殑澶у皬涔嬫瘮.鍏惰绠楀叕寮忎负: p1er=10log p0 (db) er琛ㄧず娑堝厜姣?鍗曚綅涓篸b,p1鍜孭0鍒嗗埆琛ㄧず閫昏緫1鍙?鏃剁殑鍏夊姛鐜?

鎺ユ敹鐏垫晱搴︽寚鍙互鎺㈡祴鍒扮殑鍏夊己搴︺€?/div>
鎺ユ敹鐏垫晱搴?receiver sensitivity) 琛¢噺鎺ユ敹绔负淇濊瘉涓€瀹氳鐮佺巼(1脳10exp(-12))鎵€闇€鎺ユ敹鐨勬渶灏忓钩鍧囧厜鍔熺巼,鍗曚綅涓?dbm.
璇爜鐜囨槸鎸囧湪杈冮暱涓€娈垫椂闂村唴,缁忚繃鎺ユ敹绔殑鍏夌數杞崲鍚庢敹鍒扮殑璇爜鐮佸厓鏁颁笌璇爜浠緭鍑虹缁欏嚭鐮佸厓鏁扮殑姣旂巼.

淇″彿涓㈠け鎸囩ず(los assert)鍜屼俊鍙蜂涪澶辨仮澶嶆寚绀?los dessert) 鎺ユ敹鍣ㄨ緭鍑轰竴涓數淇″彿,鍏剁數浣嶉珮浣庡弽鏄犲嚭鎺ユ敹鍣ㄦ墍鎺ユ敹鐨勫厜淇″彿寮哄害鏄惁瓒冲,灏嗚鐢典綅涓庨璁剧數浣嶆瘮杈冧互鍒ゅ畾鍏変俊鍙锋槸鍚︿涪澶?鐢典綅姣旇緝鏄噰鐢ㄥ叿鏈変竴瀹氬洖婊炴晥搴旂殑姣旇緝鍣ㄥ疄鐜?閫氬父鐢ㄩ璁剧數淇″彿瀵瑰簲鐨勫厜鍔熺巼浣滀负鎸囩ず,鍗曚綅涓篸bm

鐪煎浘妯℃澘瀹归檺(emm:eye mask margin) 鐪煎浘寮€鍚害,鎸囧湪鏈€浣虫娊鏍风偣澶勭溂鍥惧箙搴?寮犲紑"鐨勭▼搴?鏃犵暩鍙樼溂鍥剧殑寮€鍚害搴斾负100[%]. 鐪煎浘妯℃澘瀹归檺鏄寚鐪煎浘妯℃澘鎵╁紶,鐩村埌鏈夌溂鍥剧殑閲囨牱鐐硅繘鍏ュ埌鎵╁紶鍖哄煙鐨勬ā鏉挎渶澶ф墿寮犵櫨鍒嗘瘮

鍏夋ā鍧?/b>鍙紶杈撶殑璺濈涓昏鍙楀埌鎹熻€楀拰鑹叉暎涓ゆ柟闈㈠彈闄愩€?/div>
鎹熻€楅檺鍒跺彲浠ユ牴鎹叕寮忥細鎹熻€楀彈闄愯窛绂伙紳锛堝彂灏勫厜鍔熺巼锛嶆帴鏀剁伒鏁忓害锛?鍏夌氦琛板噺閲忔潵浼扮畻銆?/div>
鍏夌氦琛板噺閲忓拰瀹為檯閫夌敤鐨勫厜绾ょ浉鍏炽€?/div>
涓€鑸洰鍓嶇殑g.652 鍏夌氦鍙互鍋氬埌1310nm 娉㈡0.5db/km锛?550nm 娉㈡0.3db/km 鐢氳嚦鏇翠匠銆?0um澶氭ā鍏夌氦,鍦?50nm 娉㈡4db/km锛?310nm 娉㈡2db/km銆?/div>
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