1. Comply with Telcordia GR-1209, GR-1221.
2. Low insertion loss.
3. Comply with RoHS.
1. Single mode single window wideband coupler (SWBC).
2. Single mode dual window wideband coupler (DWBC).
3. Ultra low PDL single mode wideband coupler.
4. Compact size wideband coupler.