Design and realization of laser diode power supply

Abstract

Under the terms of development of specialized system for transmissions of analogue high frequency signals by means of optical fibres, the source of coherent infrared radiation has been designed and manufactured. The source has to excite Mach–Zehnder type external intensity electro-optical modulator. That is why the generated radiation has to meet certain requirements. Rigorously constant optical power and wavelength as well as linear polarisation of the radiation have to be reached. The parameters must be time stable and independent on external influences – especially temperature changes. The article is focused on structure of the realized appliance and submits achieved results.