{"id":248253,"date":"2024-10-19T16:21:11","date_gmt":"2024-10-19T16:21:11","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-60793-1-612017\/"},"modified":"2024-10-25T11:30:12","modified_gmt":"2024-10-25T11:30:12","slug":"bs-en-60793-1-612017","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-60793-1-612017\/","title":{"rendered":"BS EN 60793-1-61:2017"},"content":{"rendered":"

This part of IEC 60793<\/span> <\/span> establishes uniform requirements for measuring the polarization crosstalk of polarization-maintaining (PM) fibres.<\/p>\n

This document gives two methods for measuring the polarization crosstalk of PM fibres. Method A is the power ratio method, which uses the maximum and minimum values of output power at a specified wavelength, and Method B is the in-line method, which uses an analysis of the Poincar\u00e9 sphere.<\/p>\n

Details of each method are described in Clause 6<\/span>.<\/p>\n

Crosstalk values obtained by Methods A and B are based on different definitions.<\/p>\n

The crosstalk measured by Method A is defined as an “averaged” value over a measured wavelength range. In contrast, the crosstalk value obtained from Method B shows the “worst case” crosstalk value.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nNational foreword <\/td>\n<\/tr>\n
5<\/td>\nAnnex ZA(normative)Normative references to international publicationswith their corresponding European publications <\/td>\n<\/tr>\n
7<\/td>\nCONTENTS <\/td>\n<\/tr>\n
8<\/td>\nFOREWORD <\/td>\n<\/tr>\n
10<\/td>\n1 Scope
2 Normative references
3 Terms and definitions
4 Test conditions <\/td>\n<\/tr>\n
11<\/td>\n5 Reference test method
6 Test methods
6.1 Method A: Power ratio method
6.1.1 Overview of the method
6.1.2 Application
6.1.3 Test apparatus
Figure 1 \u2013 Example of test apparatus for polarization crosstalk measurement (power ratio method) <\/td>\n<\/tr>\n
12<\/td>\n6.1.4 Test procedure <\/td>\n<\/tr>\n
13<\/td>\n6.2 Method B: In-line polarimetric method
6.2.1 General
6.2.2 Limitations of the method
6.2.3 Measurement process <\/td>\n<\/tr>\n
14<\/td>\n6.2.4 Mathematical basis
Figure 2 \u2013 Poincar\u00e9 sphere representations for Method B <\/td>\n<\/tr>\n
15<\/td>\n7 Results
7.1 Information available with each measurement
7.2 Information available upon request <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Optical fibres – Measurement methods and test procedures. Polarization crosstalk<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2017<\/td>\n16<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":248257,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[649,2641],"product_tag":[],"class_list":{"0":"post-248253","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-33-180-10","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/248253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/248257"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=248253"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=248253"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=248253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}