This procedure can be applied to any single-mode passive
\ncomponent, including connectors, splices, couplers, attenuators,
\nisolators, switches, multiplexers and demultiplexers, optical
\namplifiers (non-operating), circulators and filters. It is used to
\nmeasure the total range of insertion loss as PDL due to changes in
\npolarization of the launch state. For branching devices, it can
\nalso be used to measure the total range of coupling ratio. It
\ncannot be used to measure polarization-maintaining components or to
\nmeasure the polarization dependence of return loss nor is this
\nmethod applicable to measuring the polarization dependence of
\nhigher order attributes such as center wavelength and bandwidth of
\nfilters.. This procedure could be used to measure the polarization
\ndependence of non-diagonal transmission coefficients, e.g.
\nwavelength isolation and directivity.<\/p>\n
This method differs from that described in FOTP-157, which is
\nbased on manipulation of the state of polarization of light either
\ncontinuously or in small increments in order to measure maxima and
\nminima of the attenuation of transmitted light. This method
\ninvolves the measurement of the behavior of Specimen when
\nilluminated by a small set of well-defined states of polarization
\nof input light. These measurements are followed by a matrix
\ncalculation to determine the polarization dependent loss (PDL) of
\nthe Specimen. It may be considered an efficient alternative to
\nFOTP-157 when a result is required from a small, discrete number of
\nmeasurements, such as in automated testing.<\/p>\n
Generally, PDL techniques based on matrix methods fall into two
\ncategories, i.e. those based on Mueller calculus (hereafter
\nreferred to as Mueller\/Stokes methods) and those based on the Jones
\ncalculus. While the two techniques are mathematically equivalent
\nfor completely polarized light, only the Mueller\/Stokes method is
\napplicable in the case of partially polarized light and is
\ntherefore to be considered to be more general. In addition, methods
\nbased on the Jones matrix generally require known polarization
\nstates on both input and output while the Mueller\/Stokes methods
\nrequire only known input states. Precise prior characterization of
\nthe input states is required in either case.<\/p>\n","protected":false},"excerpt":{"rendered":"
FOTP-198 Measurement of Polarization Dependence of Insertion Loss of Single-Mode Fiberoptic Components by a Mueller Matrix Method<\/b><\/p>\n\n\n
\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n TIA<\/b><\/a><\/td>\n 2002<\/td>\n 26<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":691262,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2646],"product_tag":[],"class_list":{"0":"post-691253","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-tia","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/691253","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\/691262"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=691253"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=691253"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=691253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}