Wideband Fused Fiber Coupler (FWBC, 1310nm / 1550nm)
Full Wideband Fused Biconical Taper (FWBC) Single-Mode Fiber Coupler optimized for broadband optical splitting across either 1310nm (±40nm) or 1550nm (±40nm) windows with ultra-low insertion loss, low PDL, and high directivity (>55 dB).
Technical Specifications
Parameter
Specification
Unit
Port Configuration
1x2 / 2x2
-
Center Wavelength
1310 or 1550
nm
Operating Bandwidth
±40
nm
Coupling Ratio Options
01/99, 05/95, 10/90, 20/80, 50/50
%
Max. Insertion Loss (50/50)
3.4 (A Grade), 3.6 (P Grade)
dB
Max. Excess Loss
0.07 (A Grade), 0.12 (P Grade)
dB
Max. Polarization Dependent Loss
0.06 (50/50), 0.08 (Tap ratios)
dB
Min. Directivity
55
dB
Min. Return Loss
55
dB
Max. Optical Power (CW)
1000
mW
Fiber Type
Corning SMF-28e+ Fiber
-
Operating Temperature
-40 to +85
°C
Package Dimensions
dia. 3.0 x 40 mm / dia. 3.0 x 54 mm / dia. 3.0 x 60 mm
mm
Technical Datasheet Note
Wideband design provides flat spectral response over the entire ±40nm range. Available with Grade A and Grade P screening.
Wideband design provides flat spectral response over the entire ±40nm range. Available with Grade A and Grade P screening.
Configuration and ordering notes
Configuration parameters include center wavelength (1310nm for O-band or 1550nm for C-band) and required coupling ratio.
Selection Guidance: Review extinction ratio formulas, axis alignment, and splicing tolerances in our PM Fiber Components & Extinction Ratio Guide ↗ or Fiber Polarizer Selection Guide ↗.
Key Applications
Optical transmission links; Broadband fiber sensing; In-line tap monitoring; Lab test instrumentation.
Package Drawing
Need an exact configuration?
A quotation review can begin with the application, quantity and available component information. Wavelength, optical power, fiber and termination details can be clarified with engineering.