3 papers
physics.optics2026
Noise-like pulse laser source with ultrabroadband tunability and coherence-limited sub-structure
Xinyang Liu, Matias Koivurova, Regina Gumenyuk
High brightness and low coherence laser sources with wideband tunability are essential for many full-field imaging applications aiming for high contrast and speckle free performanc…
physics.optics2025
High-power monolithic narrow-linewidth 1.6 mJ/8 ns fiber laser system based on all-glass spun tapered double-clad fiber amplifier
Hossein Fathi, Uttam Samanta, Evgenii Motorin +5
High-energy, narrow-linewidth nanosecond pulses are highly demanding for many applications that require high temporal and spatial coherence. However, the amplification of narrow-li…
physics.optics2025
Cross-spectral purity: a generalization of spatiotemporal separability
Matias Koivurova, Rajneesh Joshi
We study the connection between cross-spectral purity and spatiotemporal separability of nonstationary (pulsed) scalar fields. It is found that in the case of complete coherence, t…