{"product_id":"coherent-fading-suppression-type-das-all-fiber-demodulation-module","title":"Coherent fading suppression type DAS all-fiber demodulation module","description":"\u003ch1 id=\"h1\"\u003eCoherent fading suppression type DAS all-fiber demodulation module\u003c\/h1\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eThe coherent fading suppression type DAS all-fiber demodulation module integrates the DAS optical acquisition front-end and the DAS high-speed data processing back-end, with a length and width size of only half an A4 sheet. It provides a miniaturized and convenient solution for distributed optical acoustic wave measurement.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eIn the DAS optical acquisition front-end part, it integrates an ultra-narrow linewidth light source, modulator, amplifier, and coherent receiving module, achieving high signal-to-noise ratio coherent detection and ultra-long-distance sensing, ensuring the excellent performance of the optical link.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eIn the DAS high-speed data processing back-end part, it adopts a dual-channel 250MSps DAS high-speed acquisition card, supporting gigabit Ethernet communication (data transmission rate up to 1000Mb\/s) or 10G optical port communication (data transmission rate up to 10Gb\/s), capable of collecting over 100km of optical fiber data. It has an internal phase demodulation algorithm, enabling all-fiber demodulation and coherent fading suppression, and can directly output amplitude-phase demodulation data. The phase data can be directly used as vibration signals without secondary unwrapping; it can also output raw sampling data for users to customize demodulation. This design reduces the system's reliance on CPU computing power, simplifies the development process, and realizes \"data reading is usable, phase is vibration\".\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● High-speed data acquisition and transmission\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● Built-in all-fiber demodulation and coherent fading suppression algorithm\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● Highly integrated and miniaturized design\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● Perimeter intrusion monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● Oil and gas pipeline leakage warning\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● Tunnel and slope structure health monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● Cable (underwater and on land) condition monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e● Urban infrastructure vibration monitoring\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eProduct performance parameters\u003c\/strong\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ekernel parameter\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePerformance Parameter\u003c\/th\u003e\n\u003cth\u003eMin.\u003c\/th\u003e\n\u003cth\u003eTypical\u003c\/th\u003e\n\u003cth\u003eMax.\u003c\/th\u003e\n\u003cth\u003eUnit\u003c\/th\u003e\n\u003cth\u003eRemarks\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Distance\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e40\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003ekm\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse Width\u003c\/td\u003e\n\u003ctd\u003e20\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e500\u003c\/td\u003e\n\u003ctd\u003ens\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePulse Repetition Frequency\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e50000\u003c\/td\u003e\n\u003ctd\u003eHz\u003c\/td\u003e\n\u003ctd\u003eRelated to fiber length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Frequency\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e20000\u003c\/td\u003e\n\u003ctd\u003eHz\u003c\/td\u003e\n\u003ctd\u003eRelated to fiber length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntermediate Frequency\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eMHz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpatial Resolution\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003em\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDAQ Resolution\u003c\/td\u003e\n\u003ctd\u003e0.4m, 0.8m, 1.6m, 3.2m, 6.4m optional\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003em\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGauge Length\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e32\u003c\/td\u003e\n\u003ctd\u003eSample points\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhase Noise Floor\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong class=\"container-nB6Z1e\"\u003e\u0026lt;0.1rad @ Gauge Length=20m\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eGauge‑length dependent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDemodulation Algorithm\u003c\/td\u003e\n\u003ctd\u003eCoherent‑fading suppressed all‑fiber demodulation\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Interface\u003c\/td\u003e\n\u003ctd\u003eGigabit Ethernet \/ 10G Optical Port\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Throughput\u003c\/td\u003e\n\u003ctd\u003e1Gb\/s(Gigabit Ethernet)\/10Gb\/s(10G Optical Port)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eData Output Type\u003c\/td\u003e\n\u003ctd\u003eRaw data, amplitude‑demodulated data, phase‑demodulated data\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTransport Protocol\u003c\/td\u003e\n\u003ctd\u003eUDP\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDebug Interface\u003c\/td\u003e\n\u003ctd\u003eTTL Serial Port\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDebug Protocol\u003c\/td\u003e\n\u003ctd\u003eModbus‑RTU\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Voltage\u003c\/td\u003e\n\u003ctd\u003e4.9\u003c\/td\u003e\n\u003ctd\u003e5.0\u003c\/td\u003e\n\u003ctd\u003e5.2\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e37\u003c\/td\u003e\n\u003ctd\u003eW\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarm‑up Time\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003ctd\u003eMin\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e60\u003c\/td\u003e\n\u003ctd\u003e℃\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003ctd\u003e℃\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Size Description\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eProduct Interfaces and Indicator Lights Description\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eTable 1: Product Interface Description Table\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eInterface Type\u003c\/th\u003e\n\u003cth\u003eSilkscreen\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGreen Pluggable Terminal\u003c\/td\u003e\n\u003ctd\u003e5V\u003c\/td\u003e\n\u003ctd\u003eDC power supply +5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGreen Pluggable Terminal\u003c\/td\u003e\n\u003ctd\u003eGND\u003c\/td\u003e\n\u003ctd\u003eDC power ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWhite Pluggable Terminal\u003c\/td\u003e\n\u003ctd\u003eCOM\u003c\/td\u003e\n\u003ctd\u003eTTL‑level serial port, communicate with host PC for parameter configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensing Fiber 1\u003c\/td\u003e\n\u003ctd\u003eSensor1\u003c\/td\u003e\n\u003ctd\u003eDefault FC\/APC connector, used for single‑channel devices\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensing Fiber 2\u003c\/td\u003e\n\u003ctd\u003eSensor2\u003c\/td\u003e\n\u003ctd\u003eDefault FC\/APC connector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGigabit Ethernet Port\u003c\/td\u003e\n\u003ctd\u003eGbE\u003c\/td\u003e\n\u003ctd\u003eRJ45 connector, data rate up to 1000 Mb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10G SFP+ Port\u003c\/td\u003e\n\u003ctd\u003e10G SFP+\u003c\/td\u003e\n\u003ctd\u003eConnect external fiber via SFP+ transceiver, data rate up to 10 Gb\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eTable 2 LED Indicator Description\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eLED Type\u003c\/th\u003e\n\u003cth\u003eSilkscreen\u003c\/th\u003e\n\u003cth\u003eDescription\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower LED\u003c\/td\u003e\n\u003ctd\u003eP\u003c\/td\u003e\n\u003ctd\u003eMain power indicator: ON = powered, OFF = power‑off\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRaman1 LED\u003c\/td\u003e\n\u003ctd\u003eL1\u003c\/td\u003e\n\u003ctd\u003eRaman amplifier 1 indicator: ON = enabled, OFF = disabled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRaman2 LED\u003c\/td\u003e\n\u003ctd\u003eL2\u003c\/td\u003e\n\u003ctd\u003eRaman amplifier 2 indicator: ON = enabled, OFF = disabled\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eProfessor Wu from F-tone Networks was selected as one of the top 2% global scientists for four consecutive years from 2022 to 2025 (https:\/\/elsevier.digitalcommonsdata.com\/datasets\/btchxktzyw\/6)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis product only displays a portion of the parameters (161). If you need more information, please contact us.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eF-tone Networks Technical Support:\u003c\/p\u003e\n\u003cp\u003eEmail:una@f-tone.com\u003c\/p\u003e\n\u003cp\u003eWhatsApp and WeChat: +86177 6116 3895\u003c\/p\u003e\n\u003cp\u003eImportant Notice\u003c\/p\u003e\n\u003cp\u003ePerformance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by F-tone Networks before they become applicable to any particular order or contract. In accordance with the F-tone Networks policy of continuous improvement specifications may change without notice.\u003c\/p\u003e\n\u003cp\u003eThe publication of information in this data sheet does not imply freedom from patent or other protective rights of F-tone Networks or others. Further details are available from any F-tone Networks sales representative.\u003c\/p\u003e\n\u003cstyle\u003e\n.ftable_2fb6868f { width:100%; border-collapse:collapse; margin:15px 0; font-size:13px; table-layout:fixed; word-wrap:break-word; overflow-wrap:break-word; }\n.ftable_2fb6868f th { background-color:#2c3e50; color:#ffffff; padding:10px 8px; border:1px solid #ddd; text-align:left; font-weight:bold; font-size:12px; word-wrap:break-word; }\n.ftable_2fb6868f td { padding:8px; border:1px solid #ddd; word-wrap:break-word; font-size:13px; }\n.ftable_2fb6868f tr:nth-child(odd) { background-color:#f5f5f5; }\n.ftable_2fb6868f tr:nth-child(even) { background-color:#ffffff; }\n\u003c\/style\u003e","brand":"F-tone Networks","offers":[{"title":"Default Title","offer_id":48255003623561,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0665\/8011\/9689\/files\/DAS_5d934ebe-5f67-4930-8de0-324fdb1bf3b3.png?v=1788311978","url":"https:\/\/www.fibersoon.com\/products\/coherent-fading-suppression-type-das-all-fiber-demodulation-module","provider":"F-tone Networks","version":"1.0","type":"link"}