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Fiber Optic Couplers Work Principle
Apr 26, 2016

Fiber Coupler removable between optical fiber and optical fiber (active) devices that are connected, it is two fiber end-face precision docking, to enable the emission output of light energy to maximize coupling to the receive fiber, and its optical link in order to minimize impact on the system. For waveguide-type Optical Fiber Coupler, usually a component with a y-shaped branch, by a fiber optic signal can be equal parts. When the coupler branch road open angle increases, the cladding leakage light will increase resulting in a larger excess loss, so the opening angle is less than 30 °, so the length of waveguide-type Optical Fiber Coupler cannot be too short.

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