IdealPhotonics' dual-wavelength polarization-maintaining WDM, a wavelength division multiplexing technology based on polarization-maintaining fiber (PMF), achieves independent transmission or bidirectional communication of two specific wavelengths (e.g., 1310 nm and 1550 nm) while maintaining the stable polarization state of the optical signal. It is suitable for polarization-sensitive optical systems.It achieves stable polarization transmission of dual-wavelength signals within a polarization-maintaining fiber architecture, combining high extinction ratio isolation with adaptability to phase-sensitive systems.