Patent ID: 6787745
Filing Date: 2004-09-07
Classification: G02B

Abstract:
A device, comprising:a first fiber to carry a first optical beam; a second fiber to carry a second optical beam; a reflector positioned to receive both said first and said second optical beams and rotatable to change reflected directions of said first and said second optical beams; a rotational actuator engaged to said reflector to control a rotational position of said reflector in response to a control signal; an optical detector positioned relative to said reflector to receive said first optical beam reflected from said reflector at a first rotational position and to receive said second optical beam reflected from said reflector at a second rotational position; a focusing lens positioned between said reflector and said optical detector to focus said first and said second optical beams; and a control module to produce said control signal in response to an input to switch said rotational actuator from said first rotational position to said second rotational position when said input indicates that said optical detector fails to receive said first optical beam from said first fiber.