High Precision Estimation of Laser FM-Noise Using RF Quadrature Demodulation Techniques

Article Engineering, Electrical & Electronic

Integrated Coherent Tunable Laser (ICTL) With Ultra-Wideband Wavelength Tuning and Sub-100 Hz Lorentzian Linewidth

Paul A. Morton et al.

Summary: This paper introduces a new Integrated Coherent Tunable Laser (ICTL) that offers ultra-wideband wavelength tuning and ultra-low noise performance. The ICTL is designed to be cost-effective and reliable through its utilization of III-V material and a CMOS foundry based Silicon Photonics platform. The ICTL's exceptional laser reflector performance, extended laser cavity length, and low linewidth and phase noise enable highly-coherent output. The ICTL has achieved record integrated laser performance and shows great potential for next-generation applications such as WDM transmission systems, fiber-optic and medical-wearable sensing systems, and automotive LiDAR systems.

JOURNAL OF LIGHTWAVE TECHNOLOGY (2022)

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Article Physics, Applied

Optical frequency comb stabilized to a fiber delay line

Haochen Tian et al.

Summary: A simple and practical optical frequency comb (OFC) stabilization method was developed for comb linewidth reduction. The method achieved high fractional frequency stability and reduced linewidth, making it suitable for various applications of combs.

APPLIED PHYSICS LETTERS (2021)

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Article Optics