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physics.optics2025
On-chip real-time detection of optical frequency variations with ultrahigh resolution using the sine-cosine encoder approach
X. Steve Yao, Yulong Yang, Xiaosong Ma +6
Real-time measurement of optical frequency variations (OFVs) is crucial for various applications including laser frequency control, optical computing, and optical sensing. Traditio…
physics.optics2023
Single-frequency lasers' linewidth elegantly characterized with Sigmoid functions of observation time
Xiaosong Ma, X. Steve Yao
Linewidth is the most important parameter for characterizing the coherence properties of a single-frequency laser, but unfortunately only the natural linewidth representing the con…