Mode-Locked Fiber Laser with up to 19 kHz Wavelength Sweep Rate via External Pump LD Modulation

TL;DR

This paper presents a novel all-fiber, polarization-maintaining mode-locked laser capable of rapid wavelength sweeping at 19 kHz, achieved through external pump current modulation, offering high speed, simplicity, and cost-effectiveness.

Contribution

It introduces the first all-polarization-maintaining, all-fiber mode-locked laser with high-speed wavelength sweep enabled by external pump modulation.

Findings

Wavelength sweep rate of up to 19 kHz achieved

All-polarization-maintaining, all-fiber configuration demonstrated

High repeatability and cost-effectiveness confirmed

Abstract

For the first time, we introduce a rapid wavelength-swept, passively mode-locked fiber laser in an all-polarization-maintaining and all-fiber configuration. Achieving an exceptional wavelength sweep rate of up to 19 kHz through external modulation of the LD driver pump current, this laser offers a high sweep rate, simple cavity design, cost-effectiveness, and excellent repeatability.