VARIABLE RATIO COUPLER / TUNABLE DIRECTIONAL COUPLER (PMF)


Fiber tunable directional coupler (FTDC) has an all-fiber construction and provides the tuning range of 0 – 100 % coupling ratio with negligible optical loss. It is based on evanescent field coupling using two side polished fibers where the coupling ratio is tuned by adjusting the core-to-core geometric offset. Customer specified fibers and operating wavelengths are available including single-mode fibers, polarization maintaining fibers and other specialty fibers.

 

Features


• Negligible loss
• Polished fiber coupler
• Tunable coupling ratio (0-100%)
• Available with various fiber types including SMF and PMF
• Available at customer specified wavelength
• Very small size

 

Applications


• Optical system testing
• Interferometry
• General laboratory experiments
• Optics education kits

Demo Video


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