Words to Describe couplers

How couplers often is described ("________ couplers")

• forming
• multimode
• pin
• tapered
• residual
• port
• optic
• colored
• coloured
• loose
• automatic
• core
• inductive
• type
• waveguide
• called
• passive
• parallel
• wave
• polished
• vertical
• cyan
• integrated
• distributed
• improved
• colorless
• coaxial
• conventional
• suitable
• identical
• appropriate
• interdigital
• tunable
• active
• fused
• yellow
• acoustic
• connect
• uniform
• dye
• directional
• symmetrical
• mechanical
• defective
• symmetric
• effector
• octave
• usual
• biconical
• fiber
• asymmetric
• optical
• linear
• periodic
• incorporated
• line
• manual
• quick
• codirectional
• optoelectronic
• hole
• hybrid
• available
• nonuniform
• nonlinear
• selective
• hydraulic
• rotary
• acoustical
• standard
• ideal
• multiple
• magnetic
• electric