Filled-aperture coherent beam combining using multiplane light conversion and microcontroller-based hill climbing

Clément Jacquart; Claire Autebert; Raphaël Piccon; Tangi Le Guennic; Julien Bayol; Pu Jian; Guillaume Labroille; Olivier Pinel

doi:10.1117/12.3002229

13 March 2024 Filled-aperture coherent beam combining using multiplane light conversion and microcontroller-based hill climbing

Clément Jacquart, Claire Autebert, Raphaël Piccon, Tangi Le Guennic, Julien Bayol, Pu Jian, Guillaume Labroille, Olivier Pinel

Author Affiliations +

Proceedings Volume PC12864, Solid State Lasers XXXIII: Technology and Devices; PC1286404 (2024) https://doi.org/10.1117/12.3002229
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

The achievement of coherent beam combination is of paramount importance in the advancement of high-power laser systems across various fields, such as defense and communication. In this context, we present a novel filled-aperture coherent beam combiner that integrates essential components including polarization-maintaining fiber elements, Electro-Optic Modulators (EOMs), Erbium-Doped Fiber Amplifiers (EDFA), a Multi-Plane Light Converter, and a feedback loop employing the Stochastic Parallel Gradient Descent (SPGD) algorithm. By leveraging the SPGD algorithm, we attain precise control over the EOMs, enabling stable optical output power. Our experimental results demonstrate the effectiveness of this approach, as it achieves coherent combination of up to six input channels with high efficiency. Additionally, we observe negligible power loss throughout the duration of the process, while maintaining precise control over thermal and mechanical perturbations. One advantage of this MPLC technology is its direct scalability across different wavelengths. This feature enhances its applicability in a wide range of laser systems.

Conference Presentation

Citation Download Citation

Clément Jacquart, Claire Autebert, Raphaël Piccon, Tangi Le Guennic, Julien Bayol, Pu Jian, Guillaume Labroille, and Olivier Pinel "Filled-aperture coherent beam combining using multiplane light conversion and microcontroller-based hill climbing", Proc. SPIE PC12864, Solid State Lasers XXXIII: Technology and Devices, PC1286404 (13 March 2024); https://doi.org/10.1117/12.3002229

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
PRESENTATION

WATCH
PRESENTATION SAVE TO MY LIBRARY

GET CITATION

KEYWORDS

Beam combiners

Coherent beam combination

Electrooptic modulation

Feedback loops

High power lasers

Laser communications

Telecommunications

Show All Keywords

Keywords/Phrases

Search In:

Publication Years