The Optical Coupler LS22020105HPDNU21 30/70 appears to be a 1×2 single-mode optical splitter, likely using FBT (Fused Biconical Taper) technology. This type of coupler splits an optical signal into two outputs, with 30% of the power directed to one port and 70% to the other.
Key Features:
- Low insertion loss: Typically around 6.0 dB for the 30% output and 2.1 dB for the 70% output.
- Wide operating wavelength: Usually supports 1310 nm, 1490 nm, and 1550 nm bands.
- Low polarization-dependent loss (PDL): Generally ≤0.15 dB.
- High reliability: Designed for long-term fiber optic communication applications.
- Compact size: Available in different packaging formats such as bare fiber, loose tube, or module.
Applications:
- Fiber optic communication networks
- LAN & CATV systems
- Optical fiber sensors
- Optical testing and measurement





