− | [[:File: fiberferrulesandshrink.JPG|A 2x2 mm square waveguide, 2 ferrules, and heat-shrink used to mount the ferrules and supports ]] | + | [[:File: fiberferrulesandshrink.JPG|A 2x2 mm square waveguide]], 2 ferrules, and heat-shrink used to mount the ferrules and supports. |