{"id":208692,"date":"2024-03-21T14:06:48","date_gmt":"2024-03-21T14:06:48","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%ed%8e%b8%ea%b4%91-%eb%aa%a8%eb%93%9c-%eb%b6%84%ec%82%b0-%eb%b0%a9%ec%a0%95%ec%8b%9d-%ec%9d%b4%ed%95%b4-%eb%b0%8f-%ec%9d%91%ec%9a%a9\/"},"modified":"2024-05-15T11:31:30","modified_gmt":"2024-05-15T11:31:30","slug":"%ed%8e%b8%ea%b4%91-%eb%aa%a8%eb%93%9c-%eb%b6%84%ec%82%b0-%eb%b0%a9%ec%a0%95%ec%8b%9d-%ec%9d%b4%ed%95%b4-%eb%b0%8f-%ec%9d%91%ec%9a%a9","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ko\/%ed%8e%b8%ea%b4%91-%eb%aa%a8%eb%93%9c-%eb%b6%84%ec%82%b0-%eb%b0%a9%ec%a0%95%ec%8b%9d-%ec%9d%b4%ed%95%b4-%eb%b0%8f-%ec%9d%91%ec%9a%a9\/","title":{"rendered":"\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0 \ubc29\uc815\uc2dd | \uc774\ud574 \ubc0f \uc751\uc6a9"},"content":{"rendered":"<p class=\"sidekick\">\uc774\ud574\ud558\uae30 \uc26c\uc6b4 \uc124\uba85\uc73c\ub85c \ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0(PMD) \ud604\uc0c1\uacfc \uadf8 \uc6d0\uc778, \ubc29\uc815\uc2dd, \uc751\uc6a9\uc744 \ub2e4\ub8f9\ub2c8\ub2e4.<\/p>\n<h2>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0 \ubc29\uc815\uc2dd\uc758 \uc774\ud574<\/h2>\n<p>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0(Polarization Mode Dispersion, PMD)\uc740 \uad11\uc12c\uc720 \uac19\uc740 \uc804\uc1a1 \ub9e4\uccb4\uc5d0\uc11c \uc804\uc790\ud30c\uc758 \ud3b8\uad11 \uc0c1\ud0dc\uac00 \ud655\uc0b0\ub418\uc5b4 \uc2e0\ud638\uc758 \uc9c8\uc744 \uc800\ud558\uc2dc\ud0a4\ub294 \ud604\uc0c1\uc744 \uc124\uba85\ud558\ub294 \uc911\uc694\ud55c \uac1c\ub150\uc785\ub2c8\ub2e4. \uc774 \ud604\uc0c1\uc740 \uc8fc\ub85c \uad11\ud1b5\uc2e0 \ubd84\uc57c\uc5d0\uc11c \uc911\uc694\ud55c \uace0\ub824\uc0ac\ud56d\uc774\uba70, \uace0\uc18d \ub124\ud2b8\uc6cc\ud06c\uc5d0\uc11c\uc758 \uc2e0\ud638 \uc804\uc1a1 \ud488\uc9c8\uc744 \uc704\ud574 \uc774\ud574\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<h2>\ubd84\uc0b0\uc774\ub780 \ubb34\uc5c7\uc778\uac00?<\/h2>\n<p>\ubd84\uc0b0\uc740 \ubb3c\uc9c8\uc744 \ud1b5\ud574 \uc804\ud30c\ub418\ub294 \ud30c\ub3d9\uc758 \uc18d\ub3c4\uac00 \uadf8 \ud30c\ub3d9\uc758 \uc8fc\ud30c\uc218\uc5d0 \ub530\ub77c \ub2e4\ub974\uac8c \ub098\ud0c0\ub098\ub294 \ud604\uc0c1\uc744 \ub9d0\ud569\ub2c8\ub2e4. \uad11\uc12c\uc720\uc5d0\uc11c \ube5b\uc774 \uc804\ud30c\ub420 \ub54c \ub2e4\uc591\ud55c \ud3b8\uad11 \ubaa8\ub4dc\ub85c \uc778\ud574 \uac01\uac01\uc758 \ubaa8\ub4dc\uac00 \uc11c\ub85c \ub2e4\ub978 \uc18d\ub3c4\ub85c \uc804\ud30c\ub418\uba74, \uc774\ub85c \uc778\ud574 \uc2e0\ud638\uc758 \ud615\ud0dc\uac00 \uc65c\uace1\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud604\uc0c1\uc744 \ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4.<\/p>\n<h2>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc758 \uc6d0\uc778<\/h2>\n<p>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc758 \uc8fc\uc694 \uc6d0\uc778\uc740 \uad11\uc12c\uc720\uc758 \ube44\ub300\uce6d\uc131\uc785\ub2c8\ub2e4. \uc81c\uc870 \uacfc\uc815\uc5d0\uc11c \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \ubbf8\uc138\ud55c \uad6c\uc870\uc801 \ubd88\uade0\ud615\uc774\ub098, \uc124\uce58 \uc911 \ubc1c\uc0dd\ud560 \uc218 \uc788\ub294 \uae30\uacc4\uc801\uc778 \uae34\uc7a5 \ub4f1\uc774 \ud30c\ub3d9\uc758 \uc804\ud30c \uacbd\ub85c\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\uba74\uc11c, \uad11\uc12c\uc720 \ub0b4\uc5d0\uc11c \ube5b\uc758 \ud3b8\uad11 \uc0c1\ud0dc\uac00 \ubcc0\ud654\ud558\uac8c \ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubcc0\ud654\ub294 \uc11c\ub85c \ub2e4\ub978 \ud3b8\uad11 \ubaa8\ub4dc\uac00 \uc0dd\uc131\ub418\uac8c \ud558\uba70, \uac01 \ubaa8\ub4dc\ub294 \uc11c\ub85c \ub2e4\ub978 \uc18d\ub3c4\ub85c \uc804\ud30c\ub429\ub2c8\ub2e4.<\/p>\n<h2>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0 \ubc29\uc815\uc2dd<\/h2>\n<p>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc744 \uc218\ud559\uc801\uc73c\ub85c \ud45c\ud604\ud558\uae30 \uc704\ud574\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ubc29\uc815\uc2dd\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<p>\\[\\Delta\\tau = \\sqrt{\\frac{1}{12} L \\cdot D_{PMD}}\\]<\/p>\n<p>\uc5ec\uae30\uc11c, \\(\\Delta\\tau\\)\ub294 \ubd84\uc0b0\uc73c\ub85c \uc778\ud55c \uc2dc\uac04 \uc9c0\uc5f0\uc744 \ub098\ud0c0\ub0b4\uba70, \\(L\\)\uc740 \uad11\uc12c\uc720\uc758 \uae38\uc774, \\(D_{PMD}\\)\ub294 \ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0 \uacc4\uc218\ub97c \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc774 \ubc29\uc815\uc2dd\uc740 \uad11\uc12c\uc720\ub97c \ud1b5\ud55c \uc2e0\ud638 \uc804\uc1a1\uc758 \uc9c8\uc744 \uc608\uce21\ud558\uace0 \ucd5c\uc801\ud654\ud558\ub294 \ub370 \uc911\uc694\ud55c \ub3c4\uad6c\ub85c \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<h2>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc758 \uc751\uc6a9<\/h2>\n<p>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc740 \uc8fc\ub85c \uad11\uc12c\uc720\ub97c \uc0ac\uc6a9\ud558\ub294 \ud1b5\uc2e0 \uc2dc\uc2a4\ud15c\uc5d0\uc11c \uc911\uc694\ud569\ub2c8\ub2e4. \uace0\uc18d \ub370\uc774\ud130 \uc804\uc1a1\uc5d0\uc11c \uc774\ub7ec\ud55c \ubd84\uc0b0 \ud604\uc0c1\uc744 \uad00\ub9ac\ud558\uace0 \ucd5c\uc18c\ud654\ud568\uc73c\ub85c\uc368, \ub354 \ub192\uc740 \ub370\uc774\ud130 \uc804\uc1a1\uc728\uacfc \ub354 \ub0ae\uc740 \uc624\ub958\uc728\uc744 \ub2ec\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc744 \uc81c\uc5b4\ud558\uae30 \uc704\ud574 \uad11\uc12c\uc720 \uc124\uacc4 \ub2e8\uacc4\uc5d0\uc11c\ubd80\ud130 \uace0\ub824\ub418\uc5b4\uc57c \ud558\uba70, \uad11\uc12c\uc720\uc758 \uc124\uce58\uc640 \uc720\uc9c0\ubcf4\uc218 \uc2dc\uc5d0\ub3c4 \uc8fc\uc758\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n<h2>\uacb0\ub860<\/h2>\n<p>\ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0\uc740 \uad11\uc12c\uc720\ub97c \ud1b5\ud55c \uc2e0\ud638 \uc804\uc1a1\uc5d0\uc11c \uc911\uc694\ud55c \ud488\uc9c8 \uc800\ud558 \uc694\uc778\uc785\ub2c8\ub2e4. \uc774\ub97c \uc81c\ub300\ub85c \uc774\ud574\ud558\uace0 \uad00\ub9ac\ud558\ub294 \uac83\uc740 \uace0\ud488\uc9c8\uc758 \ud1b5\uc2e0 \ub124\ud2b8\uc6cc\ud06c \uad6c\ucd95\uc5d0 \uc788\uc5b4 \ud544\uc218\uc801\uc785\ub2c8\ub2e4. \ubc29\uc815\uc2dd\uc744 \ud1b5\ud55c \uc815\ub7c9\uc801\uc778 \ubd84\uc11d\uc740 \uae30\uc220\uc790\uc640 \uc5f0\uad6c\uc6d0\uc774 \ubb38\uc81c\ub97c \uc815\ud655\ud788 \uc9c4\ub2e8\ud558\uace0 \ud574\uacb0\ucc45\uc744 \ubaa8\uc0c9\ud560 \uc218 \uc788\uac8c \ub3c4\uc640\uc90d\ub2c8\ub2e4. \ub530\ub77c\uc11c, PMD\uc758 \uc774\ud574\ub294 \uad11\ud1b5\uc2e0 \ubd84\uc57c\uc5d0\uc11c \ub9e4\uc6b0 \uc911\uc694\ud558\uba70 \uc9c0\uc18d\uc801\uc778 \uc5f0\uad6c\uc640 \uae30\uc220 \uac1c\uc120\uc774 \uc694\uad6c\ub429\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc774\ud574\ud558\uae30 \uc26c\uc6b4 \uc124\uba85\uc73c\ub85c \ud3b8\uad11 \ubaa8\ub4dc \ubd84\uc0b0(PMD) \ud604\uc0c1\uacfc \uadf8 \uc6d0\uc778, \ubc29\uc815\uc2dd, \uc751\uc6a9\uc744 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