Chiral in-fiber adjustable polarizer apparatus and method

A method for polarizing light implemented in a chiral structure, comprising the steps of:

• (a) providing an elongated chiral optical fiber being of a predetermined handedness, the chiral optical fiber having a core disposed along the longitudinal axis and a cladding surrounding said core, said chiral optical fiber having a first end and a second end, and having at least one predetermined pitch between said first and said second ends, wherein said at least one predetermined pitch is sufficiently short, such that when incident unpolarized light having a first circularly polarized component and a second circularly polarized component, enters said first end, said core scatters one of said first and second circularly polarized components that matches said predetermined handedness, and transmits the other circularly polarized component through said second end;
• (b) positioning an elongated optical fiber component having a central longitudinal axis, a second core with a non-cylindrical cross-section, and a second cladding surrounding said second core, at said second end to convert said other circularly polarized component into linearly polarized light;
• and
• (c) rotating said component around its central longitudinal axis to selectively determine an orientation for said linearly polarized light.