{"id":699,"date":"2016-10-31T10:01:09","date_gmt":"2016-10-31T08:01:09","guid":{"rendered":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=699"},"modified":"2017-07-09T12:40:27","modified_gmt":"2017-07-09T09:40:27","slug":"4-2-1-%d7%9e%d7%a1%d7%a4%d7%a8-%d7%90%d7%95%d7%a4%d7%a0%d7%99-%d7%94%d7%aa%d7%a0%d7%95%d7%93%d7%94","status":"publish","type":"post","link":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=699","title":{"rendered":"4.2.1 \u05de\u05e1\u05e4\u05e8 \u05d0\u05d5\u05e4\u05e0\u05d9 \u05d4\u05ea\u05e0\u05d5\u05d3\u05d4"},"content":{"rendered":"<p>\u05d0\u05d9\u05d5\u05e8 4.5 \u05de\u05ea\u05d5\u05d0\u05e8\u05ea <strong>\u05d4\u05d4\u05ea\u05e4\u05dc\u05d2\u05d5\u05ea \u05d4\u05e1\u05e4\u05e7\u05d8\u05e8\u05d0\u05dc\u05d9\u05ea \u05e9\u05dc \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05e0\u05e4\u05dc\u05d8\u05ea \u05de\u05d4\u05dc\u05d9\u05d9\u05d6\u05e8<\/strong> \u05e9\u05ea\u05d5\u05d0\u05e8 \u05d1\u05d0\u05d9\u05d5\u05e8 4.4.<\/p>\n<p>\u05e2\u05e7\u05d5\u05de\u05ea \u05d4\u05d4\u05d2\u05d1\u05e8\u05d4 \u05db\u05e4\u05d5\u05e0\u05e7\u05e6\u05d9\u05d4 \u05e9\u05dc \u05d4\u05ea\u05d3\u05d9\u05e8\u05d5\u05ea, \u05de\u05ea\u05d0\u05e8\u05ea \u05d0\u05ea <span style=\"color: #804000\"><strong>\u05e8\u05d5\u05d7\u05d1 \u05e7\u05d5 \u05d4\u05e4\u05dc\u05d5\u05d0\u05d5\u05e8\u05e1\u05e6\u05e0\u05e1\u05d9\u05d4<\/strong><\/span>.<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-701 aligncenter\" src=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/wp-content\/uploads\/sites\/25\/2016\/10\/4-5-300x169.gif\" alt=\"\u05d4\u05ea\u05e4\u05dc\u05d2\u05d5\u05ea \u05e1\u05e4\u05e7\u05d8\u05e8\u05d0\u05dc\u05d9\u05ea \u05e9\u05dc \u05e7\u05e8\u05d9\u05e0\u05ea \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8\" width=\"300\" height=\"169\" \/><\/p>\n<p style=\"text-align: center\"><strong>\u05d0\u05d9\u05d5\u05e8 4.5: \u05d4\u05ea\u05e4\u05dc\u05d2\u05d5\u05ea \u05e1\u05e4\u05e7\u05d8\u05e8\u05d0\u05dc\u05d9\u05ea \u05e9\u05dc \u05e7\u05e8\u05d9\u05e0\u05ea \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8<\/strong><\/p>\n<p>\u05dc\u05dc\u05d9\u05d9\u05d6\u05e8 \u05de\u05e1\u05d5\u05d9\u05dd \u05d6\u05d4 \u05d1\u05d3\u05d5\u05d2\u05de\u05d0, 5 \u05ea\u05d3\u05d9\u05e8\u05d5\u05d9\u05d5\u05ea \u05de\u05d5\u05ea\u05e8\u05d5\u05ea, \u05e9\u05d4\u05de\u05e8\u05d7\u05e7\u05d9\u05dd \u05d1\u05d9\u05e0\u05d9\u05d4\u05df \u05e7\u05d1\u05d5\u05e2\u05d9\u05dd, \u05d5\u05e9\u05d5\u05d5\u05d9\u05dd \u05dc\u05de\u05e8\u05d5\u05d5\u05d7 \u05d1\u05d9\u05df \u05d0\u05d5\u05e4\u05e0\u05d9 \u05d4\u05ea\u05e0\u05d5\u05d3\u05d4 \u05e9\u05dc \u05de\u05d4\u05d5\u05d3 \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8:<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-702 aligncenter\" src=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/wp-content\/uploads\/sites\/25\/2016\/10\/C4s2p3f1.gif\" alt=\"\u05e0\u05d5\u05e1\u05d7\u05d4\" width=\"93\" height=\"46\" \/><\/p>\n<p><strong>Mode Spacing = MS<\/strong><\/p>\n<p>\u05de\u05d2\u05d3\u05d9\u05e8\u05d9\u05dd <span style=\"color: #804000\"><strong>\u05e8\u05d5\u05d7\u05d1 \u05e7\u05d5 \u05e4\u05dc\u05d5\u05d0\u05d5\u05e8\u05e1\u05e6\u05e0\u05e1\u05d9\u05d4 \u03b4\u2228<sub>LW<\/sub> \u05e9\u05dc \u05d0\u05d5\u05e4\u05df \u05ea\u05e0\u05d5\u05d3\u05d4 \u05d0\u05d5\u05e8\u05db\u05d9 \u05de\u05e1\u05d5\u05d9\u05dd \u05e9\u05dc \u05dc\u05d9\u05d9\u05d6\u05e8<\/strong><\/span>, \u05db\u05e8\u05d5\u05d7\u05d1 \u05e2\u05e7\u05d5\u05de\u05ea \u05d4\u05d4\u05d2\u05d1\u05e8\u05d4 \u05e9\u05dc\u05d5, \u05d1\u05d7\u05e6\u05d9 \u05de\u05d2\u05d5\u05d1\u05d4 \u05d4\u05d4\u05d2\u05d1\u05e8\u05d4 \u05d4\u05de\u05db\u05e1\u05d9\u05de\u05dc\u05d9\u05ea. \u05d2\u05d5\u05d3\u05dc \u05d6\u05d4 \u05de\u05e1\u05de\u05df \u05d0\u05ea \u05e8\u05d5\u05d7\u05d1 \u05e7\u05d5 \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05e2\u05d1\u05d5\u05e8\u05d5 \u05d9\u05db\u05d5\u05dc\u05d9\u05dd \u05dc\u05e7\u05d1\u05dc \u05e7\u05e8\u05d9\u05e0\u05d4 \u05e7\u05d5\u05d4\u05e8\u05e0\u05d8\u05d9\u05ea \u05d1\u05de\u05d5\u05e6\u05d0 \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 (\u05d4\u05e1\u05d1\u05e8 \u05de\u05e4\u05d5\u05e8\u05d8 \u05d1\u05e1\u05e2\u05d9\u05e3 5.1).<\/p>\n<p>\u05d4\u05de\u05e1\u05e4\u05e8 \u05d4\u05de\u05e7\u05d5\u05e8\u05d1 \u05e9\u05dc \u05d0\u05d5\u05e4\u05e0\u05d9 \u05d4\u05ea\u05e0\u05d5\u05d3\u05d4 \u05d4\u05de\u05d5\u05ea\u05e8\u05d9\u05dd \u05de\u05ea\u05d7\u05ea \u05dc\u05e2\u05e7\u05d5\u05de\u05ea \u05d4\u05d4\u05d2\u05d1\u05e8\u05d4 \u05e0\u05ea\u05d5\u05df \u05e2&quot;\u05d9:<\/p>\n<p dir=\"ltr\" style=\"text-align: center\"><strong>N = \u03b4\u2228<sub>LW<\/sub>\/\u0394\u2228<sub>MS<\/sub>\u00a0<\/strong><\/p>\n<p><strong>N =<\/strong> \u05de\u05e1\u05e4\u05e8 \u05d0\u05d5\u05e4\u05e0\u05d9 \u05ea\u05e0\u05d5\u05d3\u05d4 (\u05de\u05d5\u05d3\u05d9\u05dd) \u05de\u05e7\u05d5\u05e8\u05d1.<\/p>\n<p>Mode Spacing <strong>= MS<\/strong> = \u05de\u05e8\u05d5\u05d5\u05d7 \u05d1\u05d9\u05df \u05d0\u05d5\u05e4\u05e0\u05d9 \u05ea\u05e0\u05d5\u05d3\u05d4.<\/p>\n<p>Line Width <strong>= LW<\/strong> = \u05e8\u05d5\u05d7\u05d1 \u05e7\u05d5.<\/p>\n<p><strong>\u03b4\u2228<sub>LW<\/sub> =<\/strong> \u05e8\u05d5\u05d7\u05d1 \u05e7\u05d5 \u05e4\u05dc\u05d5\u05d0\u05d5\u05e8\u05e1\u05e6\u05e0\u05e1\u05d9\u05d4 \u05e9\u05dc \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8.<\/p>\n<p><strong>\u0394\u2228<sub>MS<\/sub>\u00a0=<\/strong> \u05de\u05e8\u05d7\u05e7 \u05d1\u05d9\u05df \u05d0\u05d5\u05e4\u05e0\u05d9 \u05d4\u05ea\u05e0\u05d5\u05d3\u05d4 \u05e9\u05dc \u05d4\u05de\u05d4\u05d5\u05d3:<\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-702 aligncenter\" src=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/wp-content\/uploads\/sites\/25\/2016\/10\/C4s2p3f1.gif\" alt=\"\u05e0\u05d5\u05e1\u05d7\u05d4\" width=\"93\" height=\"46\" \/><\/p>\n<p>\u05d1\u05d3\u05d5\u05d2\u05de\u05d0 4.3 \u05de\u05d5\u05d3\u05d2\u05dd \u05e9\u05d9\u05de\u05d5\u05e9 \u05d1\u05e7\u05d9\u05e8\u05d5\u05d1 \u05d6\u05d4.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=691\"><img decoding=\"async\" class=\"alignnone size-full wp-image-49\" src=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/wp-content\/uploads\/sites\/25\/2016\/10\/Buttons_Previous5bCircle5d.png\" alt=\"\u05db\u05e4\u05ea\u05d5\u05e8 &quot;\u05d4\u05e7\u05d5\u05d3\u05dd&quot;\" width=\"148\" height=\"54\" \/><\/a> <a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=707&amp;preview=true\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-48 alignleft\" src=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/wp-content\/uploads\/sites\/25\/2016\/10\/Buttons_Next-5bSquare5d.png\" alt=\"\u05db\u05e4\u05ea\u05d5\u05e8 &quot;\u05d4\u05d1\u05d0&quot;\" width=\"148\" height=\"54\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u05d0\u05d9\u05d5\u05e8 4.5 \u05de\u05ea\u05d5\u05d0\u05e8\u05ea \u05d4\u05d4\u05ea\u05e4\u05dc\u05d2\u05d5\u05ea \u05d4\u05e1\u05e4\u05e7\u05d8\u05e8\u05d0\u05dc\u05d9\u05ea \u05e9\u05dc \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05d4\u05e0\u05e4\u05dc\u05d8\u05ea \u05de\u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05e9\u05ea\u05d5\u05d0\u05e8 \u05d1\u05d0\u05d9\u05d5\u05e8 4.4. \u05e2\u05e7\u05d5\u05de\u05ea \u05d4\u05d4\u05d2\u05d1\u05e8\u05d4 \u05db\u05e4\u05d5\u05e0\u05e7\u05e6\u05d9\u05d4 \u05e9\u05dc \u05d4\u05ea\u05d3\u05d9\u05e8\u05d5\u05ea, \u05de\u05ea\u05d0\u05e8\u05ea \u05d0\u05ea \u05e8\u05d5\u05d7\u05d1 \u05e7\u05d5 \u05d4\u05e4\u05dc\u05d5\u05d0\u05d5\u05e8\u05e1\u05e6\u05e0\u05e1\u05d9\u05d4. \u05d0\u05d9\u05d5\u05e8 4.5: \u05d4\u05ea\u05e4\u05dc\u05d2\u05d5\u05ea \u05e1\u05e4\u05e7\u05d8\u05e8\u05d0\u05dc\u05d9\u05ea \u05e9\u05dc \u05e7\u05e8\u05d9\u05e0\u05ea \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05dc\u05dc\u05d9\u05d9\u05d6\u05e8 \u05de\u05e1\u05d5\u05d9\u05dd \u05d6\u05d4 \u05d1\u05d3\u05d5\u05d2\u05de\u05d0, 5 \u05ea\u05d3\u05d9\u05e8\u05d5\u05d9\u05d5\u05ea \u05de\u05d5\u05ea\u05e8\u05d5\u05ea, \u05e9\u05d4\u05de\u05e8\u05d7\u05e7\u05d9\u05dd \u05d1\u05d9\u05e0\u05d9\u05d4\u05df \u05e7\u05d1\u05d5\u05e2\u05d9\u05dd, \u05d5\u05e9\u05d5\u05d5\u05d9\u05dd &hellip; <a href=\"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=699\">\u05dc\u05d4\u05de\u05e9\u05da \u05e7\u05e8\u05d9\u05d0\u05d4  <span class=\"meta-nav\">&larr;<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[24],"tags":[],"class_list":["post-699","post","type-post","status-publish","format-standard","hentry","category-4-2----"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/699"}],"collection":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=699"}],"version-history":[{"count":7,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/699\/revisions"}],"predecessor-version":[{"id":5297,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/699\/revisions\/5297"}],"wp:attachment":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}