{"id":812,"date":"2024-04-10T14:38:41","date_gmt":"2024-04-10T14:38:41","guid":{"rendered":"https:\/\/fiberdirect.biz\/?post_type=product&#038;p=812"},"modified":"2026-04-24T11:11:18","modified_gmt":"2026-04-24T11:11:18","slug":"precision-optical-fiber-delay-line","status":"publish","type":"product","link":"https:\/\/fiberdirect.biz\/?product=precision-optical-fiber-delay-line","title":{"rendered":"Precision Optical Fiber Delay Line"},"content":{"rendered":"<p><strong>Features<\/strong><br \/>\nDelay of line customized to customer requirements<br \/>\nUse of master class optical connectors, optical fiber with low attenuation and precise winding technology guarantees low insertion loss of line<br \/>\nExtremely high delay accuracy<br \/>\nAvailable in an acoustic and vibration absorbing version<\/p>\n<p><strong>Applications<\/strong><br \/>\nLaser spectroscopy<br \/>\nTest and measurement system<br \/>\nQuantum optics<br \/>\nOptoelectronic oscillators<br \/>\nOptical gyroscopes<\/p>\n<p><strong>Technical parameters<\/strong><br \/>\nOPTICAL FIBER PARAMETERS 1<br \/>\nParameter\tUnit\tValue<br \/>\nFiber type\t\tG.657A2 2<br \/>\nAttenuation @1310 nm\tdB\/km\t\u22640.35<br \/>\nAttenuation @1383 nm\tdB\/km\t\u22640.34<br \/>\nAttenuation @1490 nm\tdB\/km\t\u22640.23<br \/>\nAttenuation @1550 nm\tdB\/km\t\u22640.21<br \/>\nAttenuation @1625 nm\tdB\/km\t\u22640.23<br \/>\nMode filed diameter (MFD) @1310 nm\t\u00b5m\t8.8 \u00b1 0.4<br \/>\nMode field diameter (MFD) @1550 nm\t\u00b5m\t9.8 \u00b1 0.5<br \/>\n1. Full datasheet of optical fiber available on request<\/p>\n<p>2. Other type of fiber Attenuation @1310 nmon request<\/p>\n<p>OPTICAL CONNECTORS PARAMETERS<br \/>\nParameter\tUnit\tValue<br \/>\nMaximum insertion loss IL\tdB\t\u2264 0.1<br \/>\nMinimum return loss RL\tdB\t\u2265 65 (APC), \u2265 55 (UPC)<br \/>\nConcentricity\t\u00b5m\t\u2264 0.3<br \/>\nLongitudinal angle of the ferrule hole\t\u2070\t\u2264 0.2<br \/>\nApex offset\t\u00b5m\t\u2264 30<br \/>\nFiber height\tnm\t-30 \u2013 +30<br \/>\nRadius of curvature\tmm\t7-12 (APC), 10-20 (SC UPC), 7-25 (LC UPC)<br \/>\nPolishing angle\t\u2070\t8 \u00b1 0.3 (APC), 0 \u00b1 0.2 (UPC)<br \/>\nMeasure at wavelength 1310, 1550 nm<\/p>\n<p>STANDARD SPECIFICATIONS 2*<br \/>\nNominal length [km]\tMaximum insertion loss [dB] 3*\tTypical delay [\u00b5s]<br \/>\n1\t0.41\t5<br \/>\n2\t0.62\t10<br \/>\n5\t1.25\t25<br \/>\n10\t2.30\t50<br \/>\n15\t3.35\t75<br \/>\n20\t4.40\t100<br \/>\n25\t5.45\t125<br \/>\n50\t10.70\t250<br \/>\nDelay tolerance  0.005 %<\/p>\n<p>2. Other lengths available on request<\/p>\n<p>3. Insertion loss with optical connectors at 1550 nm wavelength<\/p>\n<div data-test='contact-form'\n\t\t\tid='contact-form-812'\n\t\t\tclass='jetpack-contact-form-container '\n\t\t\tdata-wp-interactive='jetpack\/form' data-wp-context='{\"formId\":\"812\",\"formHash\":\"6d6278584200bfc8dea34ed14117d68fbab682a5\",\"showErrors\":false,\"errors\":[],\"fields\":[],\"isMultiStep\":false,\"useAjax\":true,\"submissionData\":null,\"formattedSubmissionData\":[],\"submissionSuccess\":false,\"submissionError\":null,\"elementId\":\"jp-form-6d6278584200bfc8dea34ed14117d68fbab682a5\",\"isSingleInputForm\":false,\"isForcedHorizontal\":false}'\n\t\t\tdata-wp-watch--scroll-to-wrapper=\"callbacks.scrollToWrapper\"\n\t\t>\n<div class=\"contact-form-submission contact-form-ajax-submission\" data-wp-bind--aria-hidden=\"state.isSuccessMessageAriaHidden\" data-wp-class--submission-success=\"context.submissionSuccess\" id=\"contact-form-success-6d6278584200bfc8dea34ed14117d68fbab682a5\" tabindex=\"-1\" 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