{"id":863,"date":"2019-01-02T09:09:42","date_gmt":"2019-01-02T09:09:42","guid":{"rendered":"http:\/\/www.dkphotonics.com\/blog\/?p=863"},"modified":"2019-01-02T09:09:42","modified_gmt":"2019-01-02T09:09:42","slug":"what-are-optical-circulators-and-their-applications","status":"publish","type":"post","link":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/","title":{"rendered":"What Are Optical Circulators And Their Applications?"},"content":{"rendered":"

Each optical circulator is a generalized isolator which has three ports or sometimes more. Where an isolator causes the loss in the direction of isolation, a circulator gathers the light and redirects it to an output port which is nonreciprocal.<\/p>\n

\"\"<\/p>\n

If I talk about a three-port circulator with non-strict-sense, this type of circulator has significance use in telecommunication applications because it is not necessary that the light should travel back from port 3 to port 1. For example, the light reflected from a fiber Bragg grating requires to be separated from the input light without loss, but since optical links are not operated in reverse only, there\u2019s no requirement of strict-sense behavior.<\/p>\n

An optical circulator is a special kind of fiber optic device which can separate optical power traveling in one single optical fiber in opposite directions. A polarization insensitive optical circulator<\/strong><\/a> can be used here to get bi-directional transmission of power over a single fiber. This circulator is majorly used in modern communication systems and advanced fiber-optical sensor systems due to its high isolation between the input power and reflected optical power and its lower loss of insertion.<\/p>\n

A majority of online suppliers offer three or four-port optical circulators with;<\/p>\n

Standard 1310nm or 1550nm windows<\/p>\n

Or sometimes a wider range of wavelength from S to L band<\/p>\n

Some of the manufacturers can also provide customized circulators on special requests with providing different wavelength, for instance, 1030nm, 1050nm, or 1040nm can be requested.<\/p>\n

Though the standard power handling of this kind of a circulator is 300mW (CW), in the market, circulators are also available with power handling 1000mW, 2000mW, and 500mW (CW).<\/p>\n

Here, a buyer requires being fully aware of the requirements of the application before choosing one.<\/p>\n

Features<\/u><\/strong><\/p>\n

Low Insertion Loss<\/p>\n

Low PDL<\/p>\n

Wide Band, High Isolation<\/p>\n

Epoxy Free Optical Path<\/p>\n

Compact In-line Package<\/p>\n

High Stability and Reliability<\/p>\n

Easy mounting<\/u><\/strong><\/p>\n

The polarization insensitive optical circulators are often easily mounted to optical tables and can withstand various handlings. The use of four strong magnets helps to hold the rugged package securely on surfaces. Another mounting option is to wisely use tow countersunk holes with having some space in-between, in order to achieve compatibility with mounting patterns of optical tables.<\/p>\n

Major Applications<\/u><\/strong><\/p>\n

Optical Amplifier<\/p>\n

Fiber Sensors<\/p>\n

Add-Drop Filters<\/p>\n

Bi-Directional Communications<\/p>\n

Metro Area Network<\/p>\n

Digital, Hybrid, and AM-Video System<\/p>\n

Wavelength Add \/ Drop<\/p>\n

Dispersion Compensation<\/p>\n

EDFAs<\/p>\n

The online market is actually full of such optical circulators and buyers can place an order for customized circulators too, for instance, pigtailed versions of circulators would be perfect if an application requires a fiber with extended length on the circulator\u2019s input and output.<\/p>\n

Once you go online you will find that there are several suppliers of these optical circulators. You require making a decision on which one you should choose to shop. Apart from that, gather complete information about the application\u2019s requirements and then decide which one you should buy.<\/p>\n","protected":false},"excerpt":{"rendered":"

Each optical circulator is a generalized isolator which has three ports or sometimes more. Where an isolator causes the loss in the direction of isolation, a circulator gathers the light and redirects it to an output port which is nonreciprocal. If I talk about a three-port circulator with non-strict-sense, this type of circulator has significance … Continue reading What Are Optical Circulators And Their Applications?<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[114,127],"tags":[154],"class_list":["post-863","post","type-post","status-publish","format-standard","hentry","category-optical-circulator","category-polarization","tag-polarization-insensitive-optical-circulator"],"yoast_head":"\nWhat Are Optical Circulators And Their Applications? - DK Photonics Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What Are Optical Circulators And Their Applications? - DK Photonics Blog\" \/>\n<meta property=\"og:description\" content=\"Each optical circulator is a generalized isolator which has three ports or sometimes more. Where an isolator causes the loss in the direction of isolation, a circulator gathers the light and redirects it to an output port which is nonreciprocal. If I talk about a three-port circulator with non-strict-sense, this type of circulator has significance … Continue reading What Are Optical Circulators And Their Applications?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/\" \/>\n<meta property=\"og:site_name\" content=\"DK Photonics Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=100007490146301\" \/>\n<meta property=\"article:published_time\" content=\"2019-01-02T09:09:42+00:00\" \/>\n<meta property=\"og:image\" content=\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@dkphotonics\" \/>\n<meta name=\"twitter:site\" content=\"@dkphotonics\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/person\/0b457ec0f0d290e882388bd40032efe1\"},\"headline\":\"What Are Optical Circulators And Their Applications?\",\"datePublished\":\"2019-01-02T09:09:42+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/\"},\"wordCount\":492,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg\",\"keywords\":[\"Polarization Insensitive Optical Circulator\"],\"articleSection\":[\"optical circulator\",\"Polarization\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/\",\"url\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/\",\"name\":\"What Are Optical Circulators And Their Applications? - DK Photonics Blog\",\"isPartOf\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage\"},\"thumbnailUrl\":\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg\",\"datePublished\":\"2019-01-02T09:09:42+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage\",\"url\":\"https:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg\",\"contentUrl\":\"https:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg\",\"width\":550,\"height\":293},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.dkphotonics.com\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What Are Optical Circulators And Their Applications?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#website\",\"url\":\"https:\/\/www.dkphotonics.com\/blog\/\",\"name\":\"DK Photonics Blog\",\"description\":\"DK Photonics' Blog is to introduce fiber optical passive components\",\"publisher\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.dkphotonics.com\/blog\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#organization\",\"name\":\"DK Photonics\",\"url\":\"https:\/\/www.dkphotonics.com\/blog\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/logo\/image\/\",\"url\":\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/DK-new-12-10.png\",\"contentUrl\":\"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/DK-new-12-10.png\",\"width\":2182,\"height\":404,\"caption\":\"DK Photonics\"},\"image\":{\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/logo\/image\/\"},\"sameAs\":[\"https:\/\/www.facebook.com\/profile.php?id=100007490146301\",\"https:\/\/x.com\/dkphotonics\",\"http:\/\/www.linkedin.com\/company\/dk-photonics-technology-co-limited?trk=top_nav_home\",\"https:\/\/www.pinterest.com\/dkphotonicstech\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/person\/0b457ec0f0d290e882388bd40032efe1\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/fcb0db5bdb78ccbc1e937aa53511ea8664bfc70e5a0ce119c5dfa4fc35774d68?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/fcb0db5bdb78ccbc1e937aa53511ea8664bfc70e5a0ce119c5dfa4fc35774d68?s=96&d=mm&r=g\",\"caption\":\"admin\"},\"url\":\"https:\/\/www.dkphotonics.com\/blog\/author\/admin\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What Are Optical Circulators And Their Applications? - DK Photonics Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/","og_locale":"en_US","og_type":"article","og_title":"What Are Optical Circulators And Their Applications? - DK Photonics Blog","og_description":"Each optical circulator is a generalized isolator which has three ports or sometimes more. Where an isolator causes the loss in the direction of isolation, a circulator gathers the light and redirects it to an output port which is nonreciprocal. If I talk about a three-port circulator with non-strict-sense, this type of circulator has significance … Continue reading What Are Optical Circulators And Their Applications?","og_url":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/","og_site_name":"DK Photonics Blog","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=100007490146301","article_published_time":"2019-01-02T09:09:42+00:00","og_image":[{"url":"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg","type":"","width":"","height":""}],"author":"admin","twitter_card":"summary_large_image","twitter_creator":"@dkphotonics","twitter_site":"@dkphotonics","twitter_misc":{"Written by":"admin","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#article","isPartOf":{"@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/"},"author":{"name":"admin","@id":"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/person\/0b457ec0f0d290e882388bd40032efe1"},"headline":"What Are Optical Circulators And Their Applications?","datePublished":"2019-01-02T09:09:42+00:00","mainEntityOfPage":{"@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/"},"wordCount":492,"commentCount":0,"publisher":{"@id":"https:\/\/www.dkphotonics.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage"},"thumbnailUrl":"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg","keywords":["Polarization Insensitive Optical Circulator"],"articleSection":["optical circulator","Polarization"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/","url":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/","name":"What Are Optical Circulators And Their Applications? - DK Photonics Blog","isPartOf":{"@id":"https:\/\/www.dkphotonics.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage"},"image":{"@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage"},"thumbnailUrl":"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg","datePublished":"2019-01-02T09:09:42+00:00","breadcrumb":{"@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#primaryimage","url":"https:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg","contentUrl":"https:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/Polarization-Insensitive-Optical-Circulator-3.jpg","width":550,"height":293},{"@type":"BreadcrumbList","@id":"https:\/\/www.dkphotonics.com\/blog\/what-are-optical-circulators-and-their-applications\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.dkphotonics.com\/blog\/"},{"@type":"ListItem","position":2,"name":"What Are Optical Circulators And Their Applications?"}]},{"@type":"WebSite","@id":"https:\/\/www.dkphotonics.com\/blog\/#website","url":"https:\/\/www.dkphotonics.com\/blog\/","name":"DK Photonics Blog","description":"DK Photonics' Blog is to introduce fiber optical passive components","publisher":{"@id":"https:\/\/www.dkphotonics.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.dkphotonics.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.dkphotonics.com\/blog\/#organization","name":"DK Photonics","url":"https:\/\/www.dkphotonics.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/logo\/image\/","url":"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/DK-new-12-10.png","contentUrl":"http:\/\/www.dkphotonics.com\/blog\/wp-content\/uploads\/DK-new-12-10.png","width":2182,"height":404,"caption":"DK Photonics"},"image":{"@id":"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/profile.php?id=100007490146301","https:\/\/x.com\/dkphotonics","http:\/\/www.linkedin.com\/company\/dk-photonics-technology-co-limited?trk=top_nav_home","https:\/\/www.pinterest.com\/dkphotonicstech\/"]},{"@type":"Person","@id":"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/person\/0b457ec0f0d290e882388bd40032efe1","name":"admin","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.dkphotonics.com\/blog\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/fcb0db5bdb78ccbc1e937aa53511ea8664bfc70e5a0ce119c5dfa4fc35774d68?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/fcb0db5bdb78ccbc1e937aa53511ea8664bfc70e5a0ce119c5dfa4fc35774d68?s=96&d=mm&r=g","caption":"admin"},"url":"https:\/\/www.dkphotonics.com\/blog\/author\/admin\/"}]}},"_links":{"self":[{"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/posts\/863","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/comments?post=863"}],"version-history":[{"count":1,"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/posts\/863\/revisions"}],"predecessor-version":[{"id":865,"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/posts\/863\/revisions\/865"}],"wp:attachment":[{"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/media?parent=863"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/categories?post=863"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dkphotonics.com\/blog\/wp-json\/wp\/v2\/tags?post=863"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}