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ICOP & ICPET 2017, 23 - : 917-920 Back to browse issues page
Coherent beam combination using SPGD algorithm
Ahmad Kamkar Mr *1, Mohammad Karimi Mr, Ebrahim Aghayari Mr, Amin Babazadeh Mr, Hossein Fathi Mr, Vahid Vatani Mr, Mohammad Sadegh Zabihi Mr, Seyed Hassan Nabavi Mr
Abstract:   (1112 Views)

In recent years much effort has been expended toward high-power CW lasers on the order of tens of kilowatts and greater. The key challenge in such scaling is maintaining near-diffraction-limited beam quality. In this paper, the coherent beam combination of three laser beams have been simulated. These simulations are compared to the experimental results which shows complete conformity with each other. In experimental setup the phase of branches are locked to each other using an active controllable phase modulator which is done for the first time in the country. SPGD algorithm, is used in control system for phase change feed-back in phase modulators. This phase control system, changes beam phase in a way that the center spot in the far-field pattern has fix position and gains the maximum accessible power.

Keywords: High-power Laser, SPGD Algorithm, Coherent Beam Combination, Phase locking
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Type of Study: Research | Subject: Special
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Kamkar A, Karimi M, Aghayari E, Babazadeh A, Fathi H, Vatani V, et al . Coherent beam combination using SPGD algorithm. ICOP & ICPET. 2017; 23 :917-920
URL: http://opsi.ir/article-1-1362-en.html

Volume 23 - Back to browse issues page
انجمن اپتیک و فوتونیک ایران Optics and Photonics Society of Iran
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