White Paper: Sub-femtosecond Synchronization in an All-Fiber Dual-Color Laser

What happens when a fully integrated all-fiber laser delivers tightly synchronized pulses at 1.03 µm and 1.55 µm?

This white paper shows that sub-femtosecond relative timing jitter can be achieved without active feedback control, opening a robust path toward compact, low-noise multi-wavelength sources for precision timing, spectroscopy, and optical metrology.

Multi-wavelength ultrafast sources are essential for many timing-critical applications, but achieving tight intrinsic synchronization in a compact fiber-based architecture remains challenging.

In this white paper, we demonstrate a dual-color all-fiber femtosecond laser at 1.03 µm and 1.55 µm with sub-femtosecond relative timing jitter.

The results show that optimized dispersive-wave generation, combined with a low-noise 1.5 µm pump laser, enables exceptional timing stability without active stabilization.

This establishes a promising route toward robust, low-noise dual-color sources for precision timing distribution, ultrafast spectroscopy, nonlinear frequency conversion, and optical metrology.

Read the full White Paper here.