The 1150nm 1x2(2x2) PM Fiber Fused Coupler from DK Photonics Technology is a Fiber Optic Coupler with Optical Power 0.5 W, 2 W, 3 W, 5 W, 10 W, Excess Loss 0.2 to 0.6 dB, Bandwidth ±20 nm, Wavelength 1150 ±20 nm, Directivity 50 to 55 dB. More details for 1150nm 1x2(2x2) PM Fiber Fused Coupler can be seen below.