Fiber optic coupler CP-HD

for sensorsall bandmultimode

SEDI-ATI’s high directivity multimode couplers are ideal for optical metrology and sensing applications where the dynamic range of the sensor is a key parameter. GI50/125 or GI62.5/125 fibers, UV to IR wavelength range, High directivity, Mode insensitivity, Achromaticity, Stable coupling ratio, High reliability, Low insertion loss, Custom configurations available. Indeed, for these types of applications, high directivity is a fabulous advantage! Actually, high directivity is essential to minimize the light that can pass directly from the injection port of the 1×2 coupler (port 1: light source) to the detection port (port 2: detector). In a round trip configuration (depending on the launch condition), the insertion loss from port 1 to port 2 is 55 dB or GI62.5/125 μm with directivity as high as > 45 dB. In addition, for high-power UV applications, we have developed the HDS series which can handle as much as 2 W @ 420 nm. Finally, our high directivity fiber-optic multimode couplers are also available with different coupling ratios and fiber lengths upon request.