3 papers
physics.optics2025
Comprehensive Investigation of Fundamental Mode Profiles in Monolithic Nonplanar Ring Oscillators
Weitong Fan, Chunzhao Ma, Wenxun Li +5
Nonplanar ring oscillators (NPROs) are building blocks for high-performance single-frequency lasers and ring-laser gyroscopes that have profoundly improved the state-of-the-art las…
physics.optics2025
Sub-kHz single-frequency pulsed semiconductor laser based on NPRO injection locking
Chunzhao Ma, Wenxun Li, Weitong Fan +6
We report a single-frequency, narrow-linewidth semiconductor pulsed laser based on pump current modulation and optical injection locking technique. A monolithic non-planar ring osc…
physics.optics2025
Temperature-insensitive fused-tapered fiber couplers based on negative thermal expansion material coating
Ze-Long Huang, Jie Xu, Jue Li +6
A new method based on negative thermal expansion material coating is proposed to realize temperature insensitive fiber coupler. By coating a layer of modified epoxy resin with a ne…