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5 March 2021 Intracavity spatial mode conversion by mean of holographic phase masks
Lam H. Mach, Nafiseh Mohammadian, Oussama Mhibik, Leonid Glebov, Ivan Divliansky
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Proceedings Volume 11664, Solid State Lasers XXX: Technology and Devices; 116640W (2021) https://doi.org/10.1117/12.2578477
Event: SPIE LASE, 2021, Online Only
Abstract
The engineering of spatial modes via conventional methods of phase transformation can only be efficiently achieved at a specific wavelength due to the monochromatic nature of a complex phase profile. Nevertheless, holographic phase masks – i.e. complex phase structures coupled with the transmissive volume Bragg grating, possess a high degree of tunability and achromatism. Such complex phase elements, holographically recorded in the volume of photo-thermo-refractive glass, allow them to withstand high average-power operating conditions uniquely suited for intra-cavity mode conversion. Here we demonstrate a linear, wavelength-tunable, continuous-wave Yb3+:KYW laser capable of emitting customizable spatial modes by mean of holographic phase masks.
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Lam H. Mach, Nafiseh Mohammadian, Oussama Mhibik, Leonid Glebov, and Ivan Divliansky "Intracavity spatial mode conversion by mean of holographic phase masks", Proc. SPIE 11664, Solid State Lasers XXX: Technology and Devices, 116640W (5 March 2021); https://doi.org/10.1117/12.2578477
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KEYWORDS
Phase shift keying
Holography
High power microwaves
Glasses
Mirrors
Phase modulation
Tunable lasers
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