English
Reach Optics' Multimode Couplers are fabricated from Corning’s multimode fibers with core diameters of 50um ,62.5um. Standard multimode couplers are commonly used in short distance communications with LED sources operating at 1310nm or 850nm. Multimode couplers are wavelength independent over a broad range of wavelengths with uniform modal power distribution launch condition, multimode tree/star couplers NX4(n=1,2,4) NX8(n=1,2,8) NX16(n=1,2,16) port ratios are available.
Reach Optics' Multimode coupler have been extensive used to split and mix optical signals in CATV, LANs and all other kinds of optical communication systems.
| Parameter | Grade P | Grade A | |
| Operating wavelength (nm) | 1310+/40;850+/-40;1310&850+/-40 | ||
| Typical excess loss (dB) | 0.4 | 0.7 | |
| Insertion loss (dB) | 50/50 | ≤3.7 | ≤4.0 |
| 40/60 | ≤4.7/2.7 | ≤5.0/3.0 | |
| 30/70 | ≤6.0/2.1 | ≤6.3/2.4 | |
| 20/80 | ≤7.8/1.4 | ≤8.1/1.7 | |
| 10/90 | ≤11.2/0.9 | ≤11.6/1.2 | |
| 5/95 | ≤14.5/0.7 | ≤15.0/1.0 | |
| 2/98 | ≤18.6/0.6 | ≤19.4/0.9 | |
| 1/99 | ≤22.0/0.5 | ≤22.8/0.8 | |
| Uniformity(50/50)(dB) | ≤0.5 | ≤0.8 | |
| Directivity (dB) | ≥40 | ||
| Operating temperature (℃) | 40 ~ +85 | ||
Other Specifications can be made on customer request.
Insertion Loss around 1380nm(water peak)is counted in the specifications above.
| Configuration | 1x2 or 2x2 | ||
| Fiber length | 1m, others on request | ||
| Fiber Type | 50/125MMF,62.5/125MMF,InfiniCorSX+50/125MMF(OM3),InfiniCor eSX+50/125MMF(OM4) | ||
| Pigtail type | 250μm bare fiber | 900μm loose tube | 900μm/2mm/3mm loose tube |
| Dimensions(φ×L )(mm) | φ3.0×L40 (P1)or φ3.0×L54(P2)orφ2.4×L42(P4) | φ3.0×L54(P2) φ3.0×L70(P3) | L90×W14×H8.5(P5) L90×W20×H9.5(P7) |
Other package dimensions can be made on customer request.
| MMC | Wavelength | Port Type | Coupling Ratio | Grade | Package | Fiber type | Pigtail Type | Length | Connector |
| 1=1310/850 Dual Window 3=1310nm 8=850nm | 1=1x2 2=2x2 ….. | 1=1/99 2=2/98 3=3/97 5=5/95 A=10/90 B=20/80 C=30/70 D=40/60 …… E=50/50 | P=P grade A=A grade | 1=P1(φ3.0×L40) 2=P2(φ3.0×L54) 3=P3(φ3.0×L70) 4=P4(φ2.4×L42) 5=P5 (L90×W14×H8.5) 7=P7 (L90×W20×H9.5) 8=8P(3X50) | 1=50/125MMF 2=62.5/125MMF 3=InfiniCor SX+50/125MMF(OM3) 4=InfiniCor eSX+50/125MMF(OM4) | 1=250um bare fiber 2=900um loose tube 3=3mm loose tube 4=2mm loose tube | H= 0.5m 8= 0.8m 1= 1m 5= 1.5m 2=2m A=0.3m B=0.6m C=1.2m | 0=None 1=FC/UPC 2=FC/APC 3=SC/APC 4=SC/UPC 5=MU 6=LC/UPC 7=LC/APC 8=E2000 APC 9=E2000 PC |