| 摘要 |
A device to monitor light output from a light source, including a V-groove substrate with a reflective coating deposited on at least one surface, an optical fiber, a light source positioned so that an amount of the light emitted, which is less than 100%, enters the optical fiber, a light intensity or source detector positioned so that at least some of the light emitted from the light source, that did not enter the optical fiber impinges upon the light intensity detector, and feedback circuitry. A method of producing a device including the steps of coating a surface of a V-groove substrate with a reflective material, placing a light source in said V-groove substrate. A method of producing a device comprising the steps of coating a surface of a V-groove substrate with a reflective material, placing a light source in said V-groove substrate, placing a light intensity detector in said V-groove substrate, and placing a wave guide structure in said V-groove substrate wherein said reflective material, said light source, said detector and said wave guide structure are positioned in said V-groove substrate so that an amount of light emitted from said light source, which is less than 100%, enters said wave guide structure; and at least some of the light emitted from said light source, that did not enter said wave guide structure reflects from said reflective material and impinges upon said light intensity detector.
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