초록 ▼

An optical fiber having a core is disclosed. A notch having first and second sides is formed in the fiber and extends into the core. At least the portion of the interior of the notch adjacent the first side has an index of refraction less than that of the core. Light travelling at a first angle to t

An optical fiber having a core is disclosed. A notch having first and second sides is formed in the fiber and extends into the core. At least the portion of the interior of the notch adjacent the first side has an index of refraction less than that of the core. Light travelling at a first angle to the fiber axis and striking the first side will be totally internally reflected if the first angle is greater than a predetermined angle. If the first angle is less than the predetermined angle, a portion of the light will enter the notch and emerge through the second surface making a second angle to the first surface, the second angle being greater than the first.

대표청구항 ▼

An optical fiber having a core, said core having a central axis, said fiber having a notch having first and second sides and extending into said core, a portion of said notch adjacent said first side having an index of refraction less than that of said core such that light being conducted within sai

An optical fiber having a core, said core having a central axis, said fiber having a notch having first and second sides and extending into said core, a portion of said notch adjacent said first side having an index of refraction less than that of said core such that light being conducted within said core and making a first angle with said axis and striking said first side will be totally internally reflected and extracted from said fiber if said first angle is greater than a preselected angle and if said angle is less than said preselected angle a portion of said light will enter said notch, wherein said light entering said notch will return to said core through said second side at a second angle to said axis, said second angle being greater than said first angle.