Integration of microoptical components for a blue ray DVD pickup system

Motivation

• Mobile data storage system, blue ray laser diode @ 407 nm
• Increasing packaging density of the components leads to higher requirements on the assembly and alignment process
• Use of microelectronic system platforms
• Assembly process and alignment procedures for mass production

Our work

• Development of assembly and aligment processes
• Realization of high precision assembly devices
• Assembly and aligment of prototypes

Alignment technologies

By means of geometrical characteristics

• Alignment of the components using mechanical stops
• Detection of component geometry - edges and alignment structures using image processing
• Alignment accuracy: 10 – 50 μm 
  

By means of optical functionality

• Measurement of beam parameters and intensity
• Detection of the data signal
• Alignment accuracy: 1 – 10 μm