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Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

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Tunable random distributed feedback fiber laser operating at 1 μm.

Xueyuan Du, Hanwei Zhang, Xiaolin Wang

|May 14, 2015

Summary

This summary is machine-generated.

This study introduces the first tunable random distributed feedback (RDFB) fiber laser at 1 μm. This novel laser offers continuous wavelength tuning from 1040 to 1090 nm with stable power output.

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Area of Science:

Photonics
Fiber Optics
Laser Technology

Background:

Random distributed feedback (RDFB) fiber lasers offer unique spectral properties.
1 μm wavelength range is crucial for various applications including telecommunications and sensing.
Developing tunable lasers in this range is an active area of research.

Purpose of the Study:

To present a novel tunable random distributed feedback (RDFB) fiber laser operating at 1 μm.
To characterize the tuning range, linewidth, and power stability of the developed laser.

Main Methods:

Utilized ytterbium-doped fiber as the gain medium.
Incorporated a manual tunable filter for wavelength selection.
Employed a 1-km-long single-mode fiber to provide random distributed feedback (RDFB).

Main Results:

Achieved continuous wavelength tuning from 1040 to 1090 nm.
Maintained a narrow linewidth of approximately 0.4 nm.
Demonstrated good power output flatness within the 50 nm tuning range, with fluctuations within 1 dB.

Conclusions:

Successfully demonstrated the first tunable RDFB fiber laser operating at 1 μm.
The developed laser exhibits excellent performance characteristics for tunable 1 μm light sources.
This work paves the way for new applications requiring flexible wavelength selection in the 1 μm spectral region.