Compact internal sensing phase locking system for coherent combining of fiber laser array

J Long, H Chang, Y Zhang, T Hou, Q Chang… - Optics & Laser …, 2022 - Elsevier
sensing phase locking system for coherent combining of large aperture fiber laser beams
is demonstrated in this paper. Herein, the phase … , an innovative internal sensing phase-locking …

Coherent beam combining using a 2D internally sensed optical phased array

LE Roberts, RL Ward, AJ Sutton, R Fleddermann… - Applied …, 2014 - opg.optica.org
phase locked, internally sensed, 2D OPA we demonstrate over 95% fringe visibility of the
interfered beam, λ / 120 RMS output phase … This paper presents a new internally sensed OPA …

Coherent beam combining using an internally sensed optical phased array of frequency-offset phase locked lasers

LE Roberts, RL Ward, C Smith, DA Shaddock - Photonics, 2020 - mdpi.com
… We have presented a technique for coherently combining multiple free-running follower
lasers based on frequency-offset phase locking. Digitally enhanced heterodyne interferometry …

Coherent beam combining of pulsed fiber lasers with hybrid phase control

XL Wang, P Zhou, YX Ma, HT Ma, XJ Xu, ZJ Liu… - Laser physics, 2010 - Springer
… and coherent combining of all fiber pulsed lasers with two port output based on direct phase
… locking of a pulsed fiber amplifier with CW seed laser by sensing the phase of a low optical …

Challenges in coherent beam combining of high power fiber amplifiers: a review

CL Linslal, P Ayyaswamy, S Maji, MS Sooraj… - ISSS Journal of Micro …, 2022 - Springer
… In this paper, we review the progress in coherent beam combining of fiber amplifiers in the
… on sensing methods: phase sensing and metric sensing. Phase sensing detects the phase

Phase-locked loop coherent combiners for phased array sensor systems

C Golliday, R Huff - IEEE Transactions on Communications, 1982 - ieeexplore.ieee.org
… The use of PLL‘s for coherent combining in sensor arrays was first presented by Lehan and
… and phase control of the sensor signal. This loop maintains a nominal 90” phase difference …

Cooperative Coherent Multistatic Imaging and Phase Synchronization in Networked Sensing

D Tagliaferri, M Manzoni, M Mizmizi… - IEEE Journal on …, 2024 - ieeexplore.ieee.org
… The following Section III details the practical acquisition of the nominal parameters necessary
to coherently combine all measurements, attaining the imaging quality shown in Fig. 3. …

Coherent beam combination with single frequency dithering technique

Y Ma, P Zhou, X Wang, H Ma, X Xu, L Si, Z Liu… - Optics letters, 2010 - opg.optica.org
… the phase fluctuating frequency of a fiber amplifier at 260 W output power in a relatively
quiet laboratory environment is well below 100 Hz [13], we believe coherent beam combination

Introducing coherent MIMO sensing, a fading-resilient, polarization-independent approach to ϕ-OTDR

S Guerrier, C Dorize, E Awwad, J Renaudier - Optics express, 2020 - opg.optica.org
… a sensor interrogation method based on coherent phase-… We name this technique
coherent-MIMO sensing. A study is … several sensor interrogation techniques, including coherent-…

Simultaneous spectrum and coherent combining by active phasing dual two-tone all-fiber MOPA chains

X Wang, J Leng, H Xiao, Y Ma, P Zhou, W Du, X Xu… - Optics letters, 2011 - opg.optica.org
… widely used in materials processing, gravitational wave sensors, nonlinear frequency
conversion, harmonic generation, and remote sensing. Nevertheless, restricted in terms of thermal …