32-nJ 615-fs Stable Dissipative Soliton Ring Cavity Fiber Laser With Raman Scattering

We report a wavelength-switchable single-polarization dissipative soliton (DS) mode-locked fiber laser using a chirped fiber Bragg grating (FBG) for spectral filtering. The chirped FBG, when inserted into the ring cavity, provides a stopband from 1045 nm to 1057 nm, which is used for spectral filtering in this all-normal-dispersion mode-locked Yb-doped fiber laser. The combination of the chirped FBG and the Yb gain profile help the formation of the DS. The laser delivers wavelength-switchable and polarized (28 dB) DS of 6.1 nJ and 29 ps at 1032 nm, and 4.3 nJ and 24 ps at 1068 nm, respectively. To the best of our knowledge, this is the direct proof that a bandpass filter is not indispensible to achieve stable DS in ps fiber lasers.

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Wavelength-Switchable Dissipative Soliton Fiber Laser With a Chirped Fiber Grating Stop-Band Filter

10.32920/14636583.v2 ◽

2021 ◽

Author(s):

Xijia Gu ◽

Lei Zhang ◽

Yan Feng

Keyword(s):

Fiber Laser ◽

Ring Cavity ◽

Stop Band ◽

Direct Proof ◽

Dissipative Soliton ◽

Fiber Grating ◽

Spectral Filtering ◽

Gain Profile ◽

Single Polarization ◽

Chirped Fiber Grating

We report a wavelength-switchable single-polarization dissipative soliton (DS) mode-locked fiber laser using a chirped fiber Bragg grating (FBG) for spectral filtering. The chirped FBG, when inserted into the ring cavity, provides a stopband from 1045 nm to 1057 nm, which is used for spectral filtering in this all-normal-dispersion mode-locked Yb-doped fiber laser. The combination of the chirped FBG and the Yb gain profile help the formation of the DS. The laser delivers wavelength-switchable and polarized (28 dB) DS of 6.1 nJ and 29 ps at 1032 nm, and 4.3 nJ and 24 ps at 1068 nm, respectively. To the best of our knowledge, this is the direct proof that a bandpass filter is not indispensible to achieve stable DS in ps fiber lasers.

Download Full-text

Wavelength-Switchable Dissipative Soliton Fiber Laser With a Chirped Fiber Grating Stop-Band Filter

10.32920/14636583 ◽

2021 ◽

Author(s):

Xijia Gu

Keyword(s):

Fiber Laser ◽

Ring Cavity ◽

Stop Band ◽

Direct Proof ◽

Dissipative Soliton ◽

Fiber Grating ◽

Spectral Filtering ◽

Gain Profile ◽

Single Polarization ◽

Chirped Fiber Grating

We report a wavelength-switchable single-polarization dissipative soliton (DS) mode-locked fiber laser using a chirped fiber Bragg grating (FBG) for spectral filtering. The chirped FBG, when inserted into the ring cavity, provides a stopband from 1045 nm to 1057 nm, which is used for spectral filtering in this all-normal-dispersion mode-locked Yb-doped fiber laser. The combination of the chirped FBG and the Yb gain profile help the formation of the DS. The laser delivers wavelength-switchable and polarized (28 dB) DS of 6.1 nJ and 29 ps at 1032 nm, and 4.3 nJ and 24 ps at 1068 nm, respectively. To the best of our knowledge, this is the direct proof that a bandpass filter is not indispensible to achieve stable DS in ps fiber lasers.

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NOLM-based mode-locked Yb-doped fiber laser with wide-spectrum

Journal of Electronic Research and Application ◽

10.26689/jera.v3i4.942 ◽

2019 ◽

Vol 3 (4) ◽

Author(s):

Tianqi Zhang ◽

Yuzhai Pan ◽

Lixin Yang ◽

Zhaoshuo Tian ◽

Wenjun Liu ◽

...

Keyword(s):

Fiber Laser ◽

Stimulated Raman Scattering ◽

Wide Spectrum ◽

Ring Cavity ◽

Single Mode ◽

Mode Locking ◽

Resonance Mode ◽

Polarization Controller ◽

Dissipative Soliton ◽

Soliton Resonance

In this paper, a mode-locked Ytterbium-doped fiber laser based on nonlinear optical loop mirror (NOLM) is proposed. The laser generates a wide-spectrum dissipative soliton resonance mode-locked pulse with strong stimulated Raman scattering. The fiber laser is pumped forward, and the fiber ring cavity contains double-cladding Yb-doped fiber, output coupler, polarization controller, polarization independent isolator and other elements. NOLM is connected with the ring cavity by through a 3dB beam splitter and 25m single-mode fiber. The total length of the eight-shape cavity laser is about 60meters. By adjusting the intra-cavity polarization controller, a stable dissipative soliton resonance mode-locked spike pulse can be achieved. The repetition frequency of the pulse train is 3.44MHz, which is consistent with the cavity length. The 3dB bandwidth of the spectrum reaches 70.6nm, and the 10dB bandwidth is close to 147.11nm. In this experiment, dissipative soliton resonance mode-locked pulses with wide spectrum and high pulse energy are realized by a traditional mode-locking method, which has wide application in many fields such as laser spectral detection and terahertz wave generation.

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