3x3 PM Fused Fiber Coupler (Polarization Maintaining)
Monolithic 3x3 Polarization-Maintaining Fused Fiber Coupler manufactured with Panda PM fiber. Provides balanced 33.3% / 33.3% / 33.3% power splitting with high extinction ratio (>20 dB) and strict 120° phase symmetry for fiber optic gyroscopes (FOG) and 3x3 interferometers.
Technical Specifications
Monolithic 3-fiber fused biconical taper ensures intrinsic 120-degree optical phase shift between ports, critical for passive homodyne demodulation in FOG.
Configuration and ordering notes
Configuration parameters include operating wavelength (1550nm standard for telecommunications/sensing; 1310nm or 850nm for tactical gyroscopes) and fiber lead length.
Key Applications
Fiber optic gyroscopes (FOG) passive homodyne detection; 3x3 fiber Mach-Zehnder and Michelson interferometers; Coherent optical demodulators.
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.