Patent ID: 11962127
Assignee: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 1:
2. A laser system, comprising:
a semiconductor laser device; and
an external folded cavity including:
a reflective surface positioned at one end of the external folded cavity,
a mirror positioned in the external folded cavity to allow sustained propagation of light in the external folded cavity, and
a first polarization element and a second polarization element, wherein:
the semiconductor laser device is positioned at a cavity fold between the reflective surface and the mirror,
the first polarization element is positioned between the reflective surface and the semiconductor laser device,
the second polarization element is positioned between the mirror and the semiconductor laser device, and
the first and the second polarization elements are configured to cause light that propagates from the first polarization element towards the semiconductor laser device to have an orthogonal polarization state compared to light that propagates from the second polarization element towards the semiconductor laser device.