Abstract:
The present invention provides a manufacturing process (600) and method (500) for efficiently providing a multi-holographic optical element substrate unit (300). Upon preparation of an original continuous/non-continuous holographic optical element (201) with uniform diffraction efficiency and marking the original continuous/non-continuous holographic optical element (201) with predetermined alignment marks (206), the original continuous/non-continuous holographic optical element (201) is cut into a predetermined number of individual holographic optical elements (204) in accordance with the predetermined alignment marks (206). Then, a substrate (304) is prepared with alignment marks (302) in accordance with the predetermined alignment marks (206) of the individual holographic optical elements (306), and the individual holographic optical elements (306) are attached to a substrate (304) in accordance with the alignment marks (206 and 302)'alignement (206 et 302).
Abstract:
An opto-isolator (10) increases optical efficiency by using holographic elements (22, 24, 26) to direct a beam of light (34) through an optical waveguide (20). An opto-electronic transmitter (12) and receiver (16) are connected to the waveguide to be in alignment with the beam of light reflected by the holographic elements. The transmitter and receiver are disposed on separate leadframe portions (14, 18), and the opto-isolator is surrounded by a package (32).