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| 27-July-2018 | |||||
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Polarization maintaining (PM) optical patch cords are widely used in polarization sensitive fiber optical systems for transmission of light that requires the PM state to be maintained.
Fiber-MART provides PM patch cords at six different wavelengths, including 780nm, 850nm, 980nm, 1060nm, 1310nm and 1550nm), with slow Axis or fast axis. Our PM patch cord features high extinction ratio, low insertion loss, high return loss and long term reliability. This price on the website is for 1M length,please feel free to enquiry us for the other length standard Festures FC-LC ConnectorsTypical Return Loss: UPC type: ≥50 dB; APC type: ≥55 dBCeramic Ferrules (UPC)Ø0.9mm Protective Outer JacketHigh extinction ratio (greater than 23dB)Low insertion lossExcellent repeatability and changeabilityEach patch cable is manufactured and tested to ensure its quality to meet the highest standard. Applications Optical fiber communication systemsOptical component test and manufacturingOptical sensor systems What is Polarization A polarized lightwave signal is represented by electric and magnetic field vectors that lie at right angles to one another in a transverse plane (a plane perpendicular to the direction of travel). Polarization is defined in terms of the pattern traced out in the transverse plane by the electric field vector as a function of time. Polarization Coordinate System An explicit coordinate system must be specified in order to unambiguously describe a state of polarization. This is shown in the following illustration. The z-axis is horizontally oriented in the direction of propagation of the light. The y-axis is vertically oriented pointing up, and the x-axis is horizontally oriented to form a right-handed rectangular coordinate system. Angles are measured with reference to the x-axis, a positive angle indicating the sense of rotation from the x-axis toward the y-axis.(The left picture) In the following illustration, unpolarized light is filtered by a polarizer to produce horizontal linear light. A quarter-wave retarder is used to resolve the horizontally polarized light into two equal-intensity components that travel at slightly different speeds.(The middle picture) For the retarder orientation shown, light emerging from the retarder is right-hand circularly polarized, as seen in the right side illustration.(The right picture) Kind Note: This price is for the common PM patch cord ( slow axis, narrow key, panda type, and 1550nm wavelength.) with FC connector. We can also offer fast axis, wide key, bow-tie/elliptical type, and other wavelength like 780nm, 850nm, 980nm, ect, with other connectors like LC/SC/ST. Welcome to contact us at sales@fiber-mart.com with any questions. Parameters Unit Specification Wavelength nm 1550 1310 980/1060 Fiber type PM 1550 PM 1310 PM 980 Insertion Loss ≤0.4 ≤0.6 Return loss UPC Type dB ≥50 APC type dB ≥55 ExtinctionRatio 23 PM Connector P dB ≥25 ≥25 ≥23 A dB ≥23 ≥23 PM Component with Connector dB Based on the component, 2dB lower Operating temperature -20 ~ +70 |
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