| 摘要 |
Self-calibrated power meter for measuring the radiant power output of a laser which utilizes a specially coated beamsplitter intercepting the laser beam, optical elements for focusing the light beam which is partially transmitted through and partially reflected from the beamsplitter onto photodetectors having different spectral response with respect to the wavelength of said light beam, and producing output signals, the ratio of which define a unique and respective value for each wavelength within the operating range, and a control system for converting the photocurrent to radiant power. <IMAGE> |
