Analysis of Microlens Arrays Efficient Optical Power Coupling for Vertical Cavity Surface Emission Laser Arrays

摘要

In this paper, analysis of a microlens arrays between fiber arrays and vertical cavity surface emitting laser arrays is reported with a variety of optical devices in transverse and vertical core pitch matching from 25μm to 127μm. Using 850nm wavelength 8 x 8 VCSEL arrays, we scale down the physical size in area from 4mm~2 to 43 μm~2, and minimize the longitudinal coupling length to 1.335mm. The optical power coupling efficiency can be increased above 90% with a flexible optical alignment range 30μm of our proposed microlens arrays. It is necessary for the requirements of micro-optics package and minimized volume between fiber array and array chips.