Fused Coupler
Fused Fiber Optic Couplers, 1×2, 1×3, 1×4, Single Mode, Multimode, and Polarization-Maintaining FBT Couplers Available with Varied Selection of Split Ratio.
Description
Description
Fused Fiber Optic Couplers Single Mode and Multimode
Fused Biconical Taper, also call FBT Coupler or Fused Coupler, is a traditional technology in which two or more fibers are placed closely together, typically twisted around each other and fused together by heating while the assembly is being elongated and tapered. It can realize the coupling of optical signals transmitted in optical fibers in the coupling area of special structures and redistribute optical power with desired coupling ratio. The fused fibers are protected by a glass substrate and then protected by a stainless steel tube, typically 3 mm diameter and a length of 54 mm.
Arkoptics provides Fused Couplers with flexible configuration according to different spectral ratios, operating wavelength, connector types and package forms to meet the diverse needs of network applications. They are widely used for optical signal replication in cable TV transmission and other optical communication systems.
- Low insertion loss and polarization-dependent loss
- High stability and reliability
- Wide operating wavelength range and operating temperature range
- Telcordia GR-1209-CORE-2001 and Telcordia GR-1221-CORE-1999 compliant
- Conform to RoHS-6 (no lead)
Specifications
| Single Mode Fused Coupler | Multimode Fused Coupler | |||||
| Operating Wavelength | 1310/1490/1550nm | 850nm | ||||
| Insertion Loss | 1×2 50:50 | 50%≤3.5dB | 50%≤4.1dB | |||
| 1×2 60:40 | 60%≤2.7dB; 40%≤4.7dB | 60%≤3.2dB; 40%≤5.2dB | ||||
| 1×2 70:30 | 70%≤1.9dB; 30%≤6.0dB | 70%≤2.5dB; 30%≤6.5dB | ||||
| 1×2 80:20 | 80%≤1.2dB; 20%≤7.9dB | 80%≤1.8dB; 20%≤9.0dB | ||||
| 1×2 90:10 | 90%≤0.8dB; 10%≤11.6dB | 90%≤1.4dB; 10%≤12.0dB | ||||
| 1×3 70:15:15 | 70%≤1.9dB; 15%≤9.5dB | 70%≤2.5dB; 15%≤10.5dB | ||||
| 1×3 80:10:10 | 80%≤1.2dB; 10%≤11.6dB | 80%≤1.8dB; 10%≤12.0dB | ||||
| 1×4 70:10:10:10 | 70%≤1.9dB; 10%≤11.6dB | 70%≤2.5dB; 10%≤12.0dB | ||||
| 1×4 60:20:10:10 | 60%≤2.7dB; 20%≤7.9dB; 10%≤11.6dB | 60%≤3.2dB; 20%≤9.0dB; 10%≤12.0dB | ||||
| Polarization Dependent Loss | ≤0.15dB | ≤0.15dB | ||||
| Return Loss | ≥ 55dB | ≥ 25dB | ||||
| Directivity | ≥ 55dB | ≥ 55dB | ||||
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | ||||
| Storage Temperature | -40°C to +85°C | -40°C to +85°C | ||||
| Connector Type | LC UPC or Other Conn. | LC UPC or Other Conn. | ||||
| Package | Steel Tube, ABS, LGX Box, Plug-in Module, Enclosure,1U Rack Mount , Custom | Steel Tube, ABS, LGX Box, Plug-in Module, Enclosure,1U Rack Mount , Custom | ||||
