780-1550nm 1x2 / 2x2 Single Mode Fiber Coupler (Wideband Filter Type)
Broadband Single-Mode Filter Coupler built with thin-film filter micro-optics providing ultra-flat splitting ratios across 780nm to 1550nm. Unlike fused couplers, filter couplers exhibit minimal wavelength dependence and superior thermal stability (<0.002 dB/°C).
Technical Specifications
Parameter
Specification
Unit
Port Configuration
1x2 / 2x2
-
Center Wavelength
1550, 1310, 1064, 980, 850, 780
nm
Operating Bandwidth
±40 (1310/1550), ±20 (780-1064)
nm
Coupling Ratio Options
01/99, 05/95, 10/90, 20/80, 50/50
%
Max. Excess Loss
0.6 (1310/1550), 0.8 (980/1064), 1.0 (780/850)
dB
Max. Polarization Dependent Loss (PDL)
0.08 (1310/1550), 0.10 (others)
dB
Min. Directivity
55
dB
Min. Return Loss
55
dB
Max. Optical Power (CW)
1000
mW
Fiber Type
Corning SMF-28e+ or HI1060 / HI780 Fiber
-
Operating Temperature
-40 to +85
°C
Package Dimensions
dia. 2.5 x 20 mm / dia. 2.5 x 25 mm
mm
Technical Datasheet Note
Filter-based optical architecture ensures flat spectral performance over the entire specified bandwidth.
Filter-based optical architecture ensures flat spectral performance over the entire specified bandwidth.
Configuration and ordering notes
Configuration parameters include port count (1x2 tap or 2x2 splitter), coupling ratio, and operating wavelength.
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
Wavelength-flat power tapping; High-precision fiber sensor arrays; Optical coherence tomography (OCT); 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.