This is a common challenge in optical assembly: Under a microscope, the fibre appears aligned with the chip, yet the optical‑power reading indicates that the position is not yet optimal.
The reason is straightforward: geometric alignment does not equal genuine optical‑field matching. Device manufacturing tolerances, beam conditions, interface structures and tiny assembly deviations all affect coupling efficiency.
For high‑precision optical assembly, visual observation alone is insufficient. Optical measurement must be integrated into the workflow: Machine vision performs coarse positioning → optical‑power feedback drives multi-degree-of-freedom fine adjustment → continuous searching and optimisation to locate the truly qualified coupling position.
Yet finding the optimal position is only the starting point. Dispensing, curing and soldering can all introduce micro‑displacements. The real test lies in whether performance can be maintained after fixation.
Therefore, a well‑established automatic coupling device must excel not only at accurate positioning, but also at stable fixation, reliable re‑testing and reproducible results.
When evaluating optical‑coupling equipment, do not merely look at motion‑stage resolution. Motion accuracy serves only as a foundation. The end result is consistent, repeatable optical performance after assembly.
Xingte integrates optics, mechanics, motion control and automated processes to develop automated optical‑coupling equipment. Turning “looks‑aligned" into well‑coupled, firmly‑fixed and mass‑producible outcomes.
