method for increasing the depth of the optical ausgangssignals or the coupling of optical signals generated electrical ausgangssignals a halbleiterinjektionslasers and arrangement for implementation of the procedure

摘要

The amplifying element is energised above the laser threshold by direct current. An alternating current portion is superposed onto the amplifying element simultaneously with the supplied optical signal. The frequency of the alternating current is higher than that of the signal. The amplifier assembly contains a direct current source (Io) for biasing the injection laser lement (1) above the laser threshold, a pumping current source (Ip), a signal source (Is), and frequency switches (2, 2', 2") between the laser element, the current and the signal sources.