FBT Coupler is also know as FBT Splitter, which is built to split the optical power or wavelength through Fused Biconic Taper (FBT) technique. Polarization Maintaining Coupler is made Panda PM fiber.
Features
Low Insertion LossHigh Extinction Ratio
High Isolation
High stability and reliability
Applications
Application
EDFA
Fiber Optical Instrument
Power Monitoring
Fiber Sensor
Item | Unit | Parameter | ||||||
Center Wavelength | nm | 780, 840 | 980, 1064 | 1310, 1480, 1550 | ||||
Bandwidth | nm | ±15, ±40 | ||||||
Max. Insertion Loss @ Central wavelength
| CR | dB | P | A | P | A | P | A |
50/50 | ≤3.8 | ≤4.0 | ≤3.6 | ≤3.8 | ≤3.4 | ≤3.6 | ||
30/70 | ≤6.3/2.2 | ≤6.5/2.4 | ≤5.75/2.0 | ≤6.1/2.1 | ≤5.6/1.95 | ≤5.75/2.1 | ||
20/80 | ≤8.2/1.7 | ≤8.5/1.9 | ≤8.0/1.5 | ≤8.2/1.7 | ≤7.6/1.4 | ≤8.0/1.5 | ||
10/90 | ≤11.8/1.4 | ≤12.0/1.6 | ≤11.6/1.2 | ≤11.8/1.4 | ≤11/0.85 | ≤11.6/1.0 | ||
5/95 | ≤15/1.0 | ≤15.2/1.2 | ≤14.8/0.8 | ≤15/1.0 | ≤14.2/0.6 | ≤14.8/0.8 | ||
3/97 | ≤17.5/0.9 | ≤17.7/1.0 | ≤16.6/0.4 | ≤17.2/0.6 | ≤16.2/0.4 | ≤16.7/0.5 | ||
2/98 | ≤19.0/0.8 | ≤19.2/1.0 | ≤18.4/0.4 | ≤18.9/0.5 | ≤18.0/0.4 | ≤18.5/0.5 | ||
1/99 | ≤22.5/0.7 | ≤22.8/0.9 | ≤22/0.4 | ≤22.5/0.6 | ≤21.5/0.3 | ≤22/0.4 | ||
ER | CR>5% | dB | 20 | 18 | 20 | 18 | 20 | 18 |
5%≥CR>1% | 18 | 16 | 18 | 16 | 18 | 16 | ||
CR≤1% | Out of concern | |||||||
Package 1 (Ф×L) | mm | 3*54 | ||||||
Return Loss | dB | ≥50 | ||||||
Directivity | dB | ≥50 | ||||||
Fiber Type | Panda PM fiber | |||||||
Power Handling | mW | ≤500 | ||||||
Operating Environment Temperature | ℃ | -5-+70 | ||||||
Storage Temperature | ℃ | -40-+85 |