Patent ID: 8282291

Claim:
A method of aligning a first D-fiber with a second D-fiber, the method comprising: (a) rotating the first D-fiber; (b) obtaining a first image profile of an end of the first D-fiber and using the first image profile to measure a diameter of a cladding of the first D-fiber along a first direction; (c) repeating (a) and (b) until a minimum diameter of the cladding of the first D-fiber is aligned along the first direction; (d) rotating the second D-fiber; (e) obtaining a second image profile of an end of the second D-fiber and using the second image profile to measure a diameter of a cladding of the second D-fiber along the first direction; and (f) repeating (d) and (e) until a minimum diameter of the cladding of the second D-fiber is aligned along the first direction.