Construction of Fundamental System of Sources of Radiation for Multiwave Laser Interferometry

Abstract

The laser for years of the development has reached big successes, but in view of last tendencies there is a real problem of transition to new modern element base. Gas lasers have good characteristics, but they rather bulky and power-intensive, therefore the problem of replacement of gas lasers semi-conductor lasers is very actual now. The western researchers have already a number of experiments and have established lines of absorption in pairs iodine in a range of lengths of waves from 500 nanometers up to 1300 nanometers. From this file of lines of absorption of us interest three lines of absorption on 502 nanometers, 633 nanometers, 793 nanometers which will allow to block all seen range. There is a problem of creation of the stabilized semi-conductor laser source with the high characteristics, overlapping the above-stated lengths of waves. Creation of the semi-conductor lasers stabilized on frequency opens ample opportunities in measuring interferometry. In the report the opportunity of use of serially let out semi-conductor lasers is discussed, at creation stabilized on superthin lines of absorption in iodine of lasers. In the report it is offered and use is argued as fundamental system of lengths of waves (or sources of radiation) lines of radiation of 502 nanometers, 633 nanometers, 793 nanometers. In the report questions of metrological maintenance of developed standards of length (frequency) are discussed.