Generation of arbitrary vector beams with a spatial light modulator and a common path interferometric arrangement

Area of Science:

• Optics and Photonics
• Laser Physics
• Beam Shaping Technologies

Background:

• Vector beams offer unique polarization properties crucial for advanced optical applications.
• Generating arbitrary vector beams with high fidelity and flexibility remains a key challenge in optical physics.
• Existing methods often lack versatility or require complex setups.

Purpose of the Study:

• To introduce a convenient and flexible approach for generating arbitrary vector beams.
• To demonstrate the reliability and versatility of the proposed method for various polarization configurations.
• To provide a practical technique for optical researchers and engineers.

Main Methods:

• Utilizing a 4-f optical system incorporating a spatial light modulator (SLM).
• Employing computer-generated holograms (CGHs) on the SLM for precise beam conversion.
• Implementing a common path interferometric arrangement for stable and efficient operation.

Main Results:

• Successful generation of various arbitrary vector beams with controlled polarization states.
• Demonstration of the method's reliability through optical realization of diverse polarization configurations.
• Validation of the flexibility and precision offered by the SLM-based approach.

Conclusions:

• The described method offers a convenient and flexible way to generate arbitrary vector beams.
• The use of SLMs and CGHs provides a powerful tool for advanced beam shaping.
• This technique is reliable and adaptable for a wide range of optical applications requiring tailored polarization states.