{"id":1008,"date":"2016-11-09T15:12:47","date_gmt":"2016-11-09T13:12:47","guid":{"rendered":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=1008"},"modified":"2017-07-19T11:35:02","modified_gmt":"2017-07-19T08:35:02","slug":"%d7%94%d7%92%d7%91%d7%a8-%d7%94%d7%aa%d7%95%d7%95%d7%9a-ga-%d7%95%d7%94%d7%a9%d7%a4%d7%a2%d7%aa%d7%95-%d7%a2%d7%9c-%d7%94%d7%94%d7%92%d7%91%d7%a8-%d7%91%d7%9e%d7%a1%d7%9c%d7%95%d7%9c-%d7%9c%d7%95","status":"publish","type":"post","link":"https:\/\/stwww1.weizmann.ac.il\/lasers\/?p=1008","title":{"rendered":"\u05d4\u05d2\u05d1\u05e8 \u05d4\u05ea\u05d5\u05d5\u05da (GA) \u05d5\u05d4\u05e9\u05e4\u05e2\u05ea\u05d5 \u05e2\u05dc \u05d4\u05d4\u05d2\u05d1\u05e8 \u05d1\u05de\u05e1\u05dc\u05d5\u05dc \u05dc\u05d5\u05dc\u05d0\u05d4 (GL)"},"content":{"rendered":"

\u05db\u05e4\u05d9 \u05e9\u05d4\u05e0\u05d7\u05e0\u05d5 \u05e9\u05e7\u05d9\u05d9\u05de\u05ea \u05d4\u05ea\u05e4\u05dc\u05d2\u05d5\u05ea \u05d0\u05d7\u05d9\u05d3\u05d4 \u05e9\u05dc \u05de\u05e7\u05d3\u05dd \u05d4\u05d0\u05d9\u05d1\u05d5\u05d3\u05d9\u05dd a, \u05db\u05da \u05d2\u05dd \u05e0\u05d9\u05ea\u05df \u05dc\u05d4\u05d2\u05d3\u05d9\u05e8 \u05de\u05e7\u05d3\u05dd \u05d4\u05d2\u05d1\u05e8\u05d4 \u03b2<\/strong><\/span>, \u05d0\u05dd \u05de\u05ea\u05d9\u05d9\u05d7\u05e1\u05d9\u05dd \u05dc\u05d4\u05d2\u05d1\u05e8\u05d4 GA<\/sub> \u05db\u05de\u05e4\u05d5\u05dc\u05d2\u05ea \u05d1\u05e6\u05d5\u05e8\u05d4 \u05d0\u05d7\u05d9\u05d3\u05d4.<\/p>\n

\u05d1\u05de\u05e7\u05e8\u05d4 \u05d6\u05d4, \u05e0\u05d9\u05ea\u05df \u05dc\u05e8\u05e9\u05d5\u05dd \u05d1\u05d0\u05e0\u05dc\u05d5\u05d2\u05d9\u05d4 \u05dc\u05d0\u05d9\u05d1\u05d5\u05d3\u05d9\u05dd, \u05e9\u05db\u05d0\u05e9\u05e8 \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05e2\u05d5\u05d1\u05e8\u05ea \u05e4\u05e2\u05dd \u05d0\u05d7\u05ea \u05d3\u05e8\u05da \u05d4\u05ea\u05d5\u05d5\u05da \u05d4\u05e4\u05e2\u05d9\u05dc, \u05d4\u05d9\u05d0 \u05de\u05d5\u05d2\u05d1\u05e8\u05ea \u05d1\u05d0\u05de\u05e6\u05e2\u05d5\u05ea \u05d4\u05d2\u05d1\u05e8 \u05d4\u05ea\u05d5\u05d5\u05da (GA<\/sub>)<\/strong><\/span> :<\/p>\n

GA<\/sub>=exp(+\u03b2L)<\/strong><\/p>\n

\u05db\u05d0\u05e9\u05e8 \u05e0\u05e6\u05d9\u05d1 \u05d0\u05ea GA<\/sub> \u05d5- M \u05d1\u05e0\u05d5\u05e1\u05d7\u05ea GL<\/sub><\/strong>, \u05e0\u05e7\u05d1\u05dc:<\/p>\n

GL<\/sub>=R1<\/sub>R2<\/sub>exp[2(\u03b2-\u03b1)L]<\/strong><\/p>\n

\u05db\u05d0\u05e9\u05e8 \u05d4\u05d4\u05d2\u05d1\u05e8 \u05d1\u05de\u05e1\u05dc\u05d5\u05dc \u05dc\u05d5\u05dc\u05d0\u05d4 (GL<\/sub>) \u05d2\u05d3\u05d5\u05dc \u05de1- (GL<\/sub>>1)<\/strong><\/span>, \u05ea\u05d2\u05d3\u05dc \u05e2\u05d5\u05e6\u05de\u05ea \u05e7\u05e8\u05d9\u05e0\u05ea \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05dc\u05d0\u05d7\u05e8 \u05de\u05e1\u05dc\u05d5\u05dc \u05d0\u05d7\u05d3 \u05d4\u05dc\u05d5\u05da \u05d5\u05e9\u05d5\u05d1.<\/p>\n

\u05db\u05d0\u05e9\u05e8 \u05d4\u05d4\u05d2\u05d1\u05e8 \u05d1\u05de\u05e1\u05dc\u05d5\u05dc \u05dc\u05d5\u05dc\u05d0\u05d4 (GL<\/sub>) \u05e7\u05d8\u05df \u05de1- (GL<\/sub><1), \u05d9\u05d3\u05e2\u05db\u05d5 \u05ea\u05e0\u05d5\u05d3\u05d5\u05ea \u05d4\u05dc\u05d9\u05d9\u05d6\u05e8 \u05d1\u05de\u05d4\u05d5\u05d3.<\/p>\n

\u05de\u05e1\u05e7\u05e0\u05d4<\/strong><\/span>, \u05e7\u05d9\u05d9\u05dd \u05ea\u05e0\u05d0\u05d9 \u05e1\u05e3 \u05dc\u05d4\u05d2\u05d1\u05e8\u05d4, \u05e2\u05dc \u05de\u05e0\u05ea \u05e9\u05d9\u05d9\u05d5\u05d5\u05e6\u05e8\u05d5 \u05ea\u05e0\u05d5\u05d3\u05d5\u05ea \u05d1\u05dc\u05d9\u05d9\u05d6\u05e8<\/strong><\/span>.<\/p>\n

\u05d4\u05d2\u05d1\u05e8 \u05e1\u05e3 (Threshold Gain)<\/span> <\/strong>\u05de\u05e1\u05d5\u05de\u05df \u05d1\u05d0\u05de\u05e6\u05e2\u05d5\u05ea \u05d4\u05d0\u05d9\u05e0\u05d3\u05e7\u05e1 th<\/strong>.<\/p>\n

\u05e2\u05d1\u05d5\u05e8 \u05dc\u05d9\u05d9\u05d6\u05e8\u05d9\u05dd \u05e8\u05e6\u05d9\u05e4\u05d9\u05dd \u05d4\u05ea\u05e0\u05d0\u05d9 \u05dc\u05dc\u05d6\u05d9\u05e8\u05d4<\/strong> <\/span>\u05d4\u05d5\u05d0:<\/p>\n

(GL<\/sub>)th<\/sub>=1=R1<\/sub>R2<\/sub>G2<\/sup>A<\/sub>M=R1<\/sub>R2<\/sub>exp[2(\u03b2-\u03b1)L]<\/strong><\/p>\n

 <\/p>\n

\"\u05db\u05e4\u05ea\u05d5\u05e8<\/a> \"\u05db\u05e4\u05ea\u05d5\u05e8<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

\u05db\u05e4\u05d9 \u05e9\u05d4\u05e0\u05d7\u05e0\u05d5 \u05e9\u05e7\u05d9\u05d9\u05de\u05ea \u05d4\u05ea\u05e4\u05dc\u05d2\u05d5\u05ea \u05d0\u05d7\u05d9\u05d3\u05d4 \u05e9\u05dc \u05de\u05e7\u05d3\u05dd \u05d4\u05d0\u05d9\u05d1\u05d5\u05d3\u05d9\u05dd a, \u05db\u05da \u05d2\u05dd \u05e0\u05d9\u05ea\u05df \u05dc\u05d4\u05d2\u05d3\u05d9\u05e8 \u05de\u05e7\u05d3\u05dd \u05d4\u05d2\u05d1\u05e8\u05d4 \u03b2, \u05d0\u05dd \u05de\u05ea\u05d9\u05d9\u05d7\u05e1\u05d9\u05dd \u05dc\u05d4\u05d2\u05d1\u05e8\u05d4 GA \u05db\u05de\u05e4\u05d5\u05dc\u05d2\u05ea \u05d1\u05e6\u05d5\u05e8\u05d4 \u05d0\u05d7\u05d9\u05d3\u05d4. \u05d1\u05de\u05e7\u05e8\u05d4 \u05d6\u05d4, \u05e0\u05d9\u05ea\u05df \u05dc\u05e8\u05e9\u05d5\u05dd \u05d1\u05d0\u05e0\u05dc\u05d5\u05d2\u05d9\u05d4 \u05dc\u05d0\u05d9\u05d1\u05d5\u05d3\u05d9\u05dd, \u05e9\u05db\u05d0\u05e9\u05e8 \u05d4\u05e7\u05e8\u05d9\u05e0\u05d4 \u05e2\u05d5\u05d1\u05e8\u05ea \u05e4\u05e2\u05dd \u05d0\u05d7\u05ea \u05d3\u05e8\u05da \u05d4\u05ea\u05d5\u05d5\u05da \u05d4\u05e4\u05e2\u05d9\u05dc, \u05d4\u05d9\u05d0 \u05de\u05d5\u05d2\u05d1\u05e8\u05ea \u05d1\u05d0\u05de\u05e6\u05e2\u05d5\u05ea … \u05dc\u05d4\u05de\u05e9\u05da \u05e7\u05e8\u05d9\u05d0\u05d4 ←<\/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":[28],"tags":[],"class_list":["post-1008","post","type-post","status-publish","format-standard","hentry","category-5-2------"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/1008"}],"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=1008"}],"version-history":[{"count":8,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/1008\/revisions"}],"predecessor-version":[{"id":5389,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=\/wp\/v2\/posts\/1008\/revisions\/5389"}],"wp:attachment":[{"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1008"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1008"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stwww1.weizmann.ac.il\/lasers\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1008"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}