Alignment of single and multi-mode optical fibers using piezoelectric actuators

An optoelectronic package comprising:

• an organic substrate;
• a cavity formed into the organic substrate;
• and
• a plurality of actuators formed around a perimeter of the cavity, wherein each of the actuators includes a beam that extends over the cavity, and wherein the actuators are actuatable in a plane parallel to a top surface of the organic substrate, wherein the beam of each actuator comprises:
• a first electrode;
• a piezoelectric layer formed on the first electrode;
• and
• a second electrode formed on the piezoelectric layer, wherein the first electrode is formed below the piezoelectric layer and along a first sidewall of the piezoelectric layer, and wherein the second electrode is formed along a second sidewall of the piezoelectric layer that is opposite to the first sidewall.

An optoelectronic package, comprising:

• an organic substrate;
• a cavity formed in the organic substrate;
• a fiber block positioned in the cavity, wherein the fiber block includes one or more optical fibers;
• an optical engine formed on the organic substrate, wherein the optical engine includes transmission and/or receiving lines, each having a centerline that is aligned to the same height as one of the optical fibers;
• and
• a plurality of actuators formed around a perimeter of the cavity, wherein each of the actuators includes a beam that extends over the cavity, and wherein the plurality of actuators contact a sidewall of the fiber block when actuated.