1x8 850nm Fused Fiber Coupler Module
Compact 1x8 Fused Single-Mode / Polarization-Maintaining Fiber Coupler Module optimized for 850nm short-wavelength operation. Packaged in a compact aluminum box with low excess loss, high port uniformity (<1.0 dB), and low polarization sensitivity for OCT and sensing.
Technical Specifications
Parameter
Specification
Unit
Port Configuration
1x8 (or 2x8)
-
Center Wavelength
850
nm
Operating Bandwidth
±15
nm
Splitting Ratio
Even 12.5% per port (or customized tap)
%
Max. Insertion Loss @ 23°C
10.8 (SM) / 11.2 (PM)
dB
Max. Uniformity
1.0
dB
Min. Extinction Ratio @ 23°C (PM)
18
dB
Min. Return Loss
50
dB
Max. Optical Power (CW)
500
mW
Fiber Type
HI780 Fiber (SM) or PM780 Panda Fiber (PM)
-
Operating Temperature
-40 to +75
°C
Package Dimensions
100 x 80 x 10 mm / 120 x 80 x 18 mm
mm
Technical Datasheet Note
Connectors add 0.3 dB insertion loss. Standard package: aluminum module with 900um loose tube pigtails.
Connectors add 0.3 dB insertion loss. Standard package: aluminum module with 900um loose tube pigtails.
Configuration and ordering notes
Configuration parameters include whether single-mode (HI780) or polarization-maintaining (PM780) fiber is required, and connector types.
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 Coherence Tomography (OCT) retinal scanners; 850nm VCSEL array distribution; Optical interconnects; Fiber Bragg grating sensing.
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.