Polarization Maintaining Fused Wide Band Coupler(PMWBC)
LightComm uses unique fusing technique and polarization maintaining fiber to build the polarization maintaining fused wide band coupler (PMWBC).The coupling ratio could be selected according to customer’s request. It features low excess loss, small size and high polarization extinction ratio. PMC is widely used for optical sensors and optical gyro, optical amplifier. (cid:131)
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Overview
Specifications
| Parameter | Value |
|---|---|
| Operating wavelength [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | 1310,1480,1550±40 nm |
| Dimensions（Φ×L） [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | 3×54 or customized |
| IL [CR 50/50; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤3.8 dB |
| IL [CR 30/70; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤6.1/2.3 dB |
| IL [CR 20/80; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤8.1/1.7 dB |
| IL [CR 10/90; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤11.5/1.2 dB |
| IL [CR 5/95; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤14.5/0.9 dB |
| IL [CR 3/97; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤17.1/0.6 dB |
| IL [CR 2/98; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤18.5/0.5 dB |
| IL [CR 1/99; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤22.0/0.45 dB |
| IL [CR 0.1/99.9; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | 28~32 / 0.4 dB |
| ER [Grade P; CR 50/50,30/70,20/80,10/90; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥20 dB |
| ER [Grade A; CR 50/50,30/70,20/80,10/90; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥18 dB |
| ER [Grade P; CR 5/95,3/97,2/98; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥18/20 dB |
| ER [Grade A; CR 5/95,3/97,2/98; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥16/20 dB |
| ER [Grade P; CR 1/99,0.1/99.9; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥no/20 |
| ER [Grade A; CR 1/99,0.1/99.9; without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥no/18 |
| Return loss [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥50 dB |
| Directivity [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≥50 dB |
| Power handling [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | ≤500 mW |
| Operating temperature [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | -5～75 ℃ |
| Storage temperature [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | -40～85 ℃ |
| Fiber type [without connectors; for devices with connectors IL +0.3dB and ER 2dB lower; default connector key aligns to slow axis] | Panda PM fiber |
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