Dual fiber collimator assembly pointing control

An optical system, comprising:

• an optical transmitter producing output light;
• an optical receiver receiving at least a portion of the output light;
• and
• an optical fiber link coupling between the optical transmitter and the optical receiver, the optical fiber link including
• a first optical fiber optically coupled to the optical transmitter,
• a first lens having an optical axis and a focal length, the first optical fiber and a second optical fiber being positioned on an input side of the first lens element on opposite sides of the optical axis and at a distance from the first focusing element of approximately the focal length so that light from the first optical fiber propagates on a second side of the first focusing element as a substantially collimated beam at a first angle to the optical axis,
• a wedged optical element optically is disposed on a second side of the first focusing element, the wedged optical transmitting at least a portion of the substantially collimated beam in a direction substantially parallel to the optical axis, and
• a second focusing element disposed to focus light transmitted by the wedged optical element to a third optical fiber,
• the optical receiver being optically coupled to receive light from one of the second and the third optical fibers.

An optical unit, comprising:

• a first focusing unit defining an optical axis;
• a second focusing unit spaced apart from the first focusing element;
• at least first and second fiber ports disposed on a first side of, and optically coupled through, the first focusing element;
• at least a third fiber port on a second side of the second focusing unit opposite the first focusing unit;
• and
• a wedged optical element disposed between the first and second focusing units to direct collimated light passing from the first fiber port to the third fiber port to be substantially parallel to the optical axis.

A method of aligning light in an in-line fiber optic device, the method comprising:

• transmitting light from a first port disposed towards a first end of the device through a wedged optical element disposed on an optical axis;
• propagating the light transmitted through the wedged optical element to a second optical element disposed on the optical axis;
• and
• rotating the wedged optical element about the optical axis to adjust an angle of incidence of the light on the second optical element to a desired value of the angle of incidence.