Design and experimental characterisation of a DC-excited CW/repetitively pulsed sealed off CO2 laser

✍ Scribed by N. Khan; N. Mariun

• Book ID: 104159876
• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 396 KB
• Volume: 36
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/s0030-3992(03)00136-1

✦ Synopsis

This paper reports the design procedure and experimental study of a sealed o CO2 laser. Simple algorithms for threshold and steady state excitation voltage calculation, resonator design and its temperature dependent operation are presented. The sealed o CO2 laser was operated both in CW and pulsed modes and found stable both thermodynamically and optically. Frequency limits for pulsed operation regarding maximum and minimum output energy ranges are determined. Di erent aspects of CO2 laser studied include threshold excitation voltages, temperature dependent e ciency, optical power saturation limitations, pulsed and steady state discharge currents for optimum gases mixture combinations. The laser has successfully been constructed, operated and tested for di erent applications within the limits of its maximum output power of 14 W.