Technique for simultaneous alignment and collimation of a laser diode in an optical data storage head

Area of Science:

• Optical Engineering
• Metrology

Background:

• Laser diodes are crucial for optical data storage.
• Precise alignment and collimation are essential for high-density storage.

Purpose of the Study:

• To introduce a method for aligning and detecting laser diode collimation.
• To achieve high wavefront quality without interferometric setups.

Main Methods:

• Utilizing an autocollimator for alignment and collimation detection.
• Implementing the method within an optical data storage head.

Main Results:

• Successful alignment and collimation of the laser diode.
• High wavefront quality was achieved.

Conclusions:

• Autocollimators provide an effective solution for laser diode alignment in optical data storage.
• High wavefront quality is attainable without interferometric equipment, simplifying the process.