Opto-mechanical mounting for optical components

A fiber laser, comprising.

• a laser source;
• a process head to receive a laser beam derived from laser light of the laser source;
• and
• at least one free-space optics module located on an optical path of the laser beam to optically process the laser beam, the at least one free-space optic module including:\
• an optical component;
• and
• a redundant retention mechanism for fixing a position of the optical component relative to a surface, the redundant retention mechanism including:
• an opening defined by the surface, wherein a bottom part of the optical component is located in the opening, wherein sidewalls of the opening define a non-uniform opening width or sidewalls of the bottom part of the optical component define a non-uniform optical component width in which a width of a first section of the opening or a first section of the bottom part of the optical component is narrower than a width of a second lower section of the opening or a second lower section of the bottom part of the optical component;
• and
• an adhesive located in the opening between the sidewalls of the opening and the sidewalls of the bottom part of the optical component.