Article ID Journal Published Year Pages File Type
1541531 Optics Communications 2007 4 Pages PDF
Abstract
We present a novel coupling scheme of two independent amplified beam lines in a Nd:YAP based master oscillator power amplifier (MOPA) system. Second harmonic generation (SHG) with type II phase matching offers the possibility of coupling two perpendicularly polarized beams, which are delivered from a MOPA system with two parallel amplifier chains. To preserve the excellent oscillator beam quality after amplification, the amplifiers are driven in double pass and optical fibres as phase conjugate mirrors (PCM) are used after the first pass. With this method, a single beam with an average power of 124 W is generated in the green spectral range. The laser system operates at an average repetition rate of 2.8 kHz and delivers pulses with a width of 160 ns.
Related Topics
Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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