Electrically tunable mode-locked fiber laser using laser induced graphene assisted long-period fiber grating

Zhu, Yuehong; Zhang, Hong; Wu, Zhuang; Shen, Li; Wang, Shutong; Deng, Guoliang; Zhou, Shouhuan

doi:10.1088/1612-202x/acb354

Cited by 3 publications

(1 citation statement)

References 37 publications

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“…Narrow-range (several nanometres) wavelength tuning is possible in certain fibre laser configurations by adjustment of pump radiation power [53]. Tuning of the pulse wavelength is possible by electronically controlled heating of the reflective long-period Bragg grating [54]. An approximately ~15 nm tuning range was demonstrated (when heated up to 500 • C) around 1.5 µm.…”

Section: Electrically Controlled Methods Of Radiation Wavelength Tuningmentioning

confidence: 99%

Methods of Radiation Wavelength Tuning in Short-Pulsed Fibre Lasers

Kobtsev

2023

Photonics

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Methods of output wavelength tuning in short-pulsed fibre lasers are analysed. Many of them rely on spectral selection principles long used in other types of lasers. For compatibility with the fibre-optical format, the corresponding elements are sealed in compact, airtight volumes with fibre-optical radiation input and output. A conclusion is presented about the relatively small number of inherently “fibre-optical” ways of tuning the wavelength of radiation. It is demonstrated that the range of output wavelength tuning in short-pulsed fibre lasers may span hundreds of nanometres (even without extension beyond the active medium gain contour through nonlinear effects). From the presented review results, it may be concluded that the search for the optimal tuning method complying with the user-preferred all-PM-fibre short-pulsed laser design is not yet complete.

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Section: Electrically Controlled Methods Of Radiation Wavelength Tuningmentioning

confidence: 99%

Methods of Radiation Wavelength Tuning in Short-Pulsed Fibre Lasers

Kobtsev

2023

Photonics

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Optically tunable mode-locked fiber laser using long-period grating coated with multiwall carbon nanotubes

Jiang,

Wan,

Yun

et al. 2024

Applied Physics Letters

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We demonstrate an optically tunable mode-locked fiber laser using long-period fiber grating (LPFG) coated with multi-walled carbon nanotubes (CNTs). The multi-walled CNTs can absorb light to convert it into thermal energy, and the resonance wavelength of the grating can be easily turned by varying the external modulated light power. This multi-walled CNT coated LPFG-based all-optical fast and efficient spectrum tunable filter enables continuous tuning of the central wavelength of the laser by manipulating the loss of the mode-locked laser, ensuring the stability of the mode-locking state. In the absence of modulated light on multi-walled CNTs, the soliton laser could generate 890 fs pulses at 1546.7 nm with a spectrum bandwidth of 3.26 nm and a signal-to-noise ratio of 73.1 dB. Through adjustment of the pump power of the modulation light on multi-walled CNTs, the mode-locked fiber laser can be continuously tuned from 1546.71 to 1563.15 nm. The response time of the optically tunable system was measured to be in the order of hundreds of milliseconds. The presented optical tuning filter shows great potential in the fiber laser system, offering a repeatable, straightforward, and rapidly responsive laser tuning technique.

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All-polarization-maintaining, efficiently wavelength-tunable, Er-doped mode-locked fiber laser with a compact reflective Lyot filter

Dai¹,

Liu²,

Shirahata³

et al. 2023

Opt. Express

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Wavelength tunable mode-locked fiber lasers have highly potential applications in precision spectroscopy, nonlinear microscopy and photonic sensing. Here, we present a compact and thermal-sensitive reflective Lyot filter and utilize it for all-polarization-maintaining efficiently wavelength-tunable Er-doped carbon-nanotube-mode-locked laser for the first time, to the best of our knowledge. The output wavelength of the laser can be tuned from 1544.46 nm to 1572.71 nm, with a wide tuning range of 28.25 nm, and a remarkable tuning efficiency of 0.589 nm/°C, when the angle-spliced fiber is only 8.2 cm and the free spectral range of the filter is 31.32 nm. Dual-wavelength mode-locking is also achieved at boundary temperatures when increasing the pump power. Due to its compact size and reflection configuration, the proposed reflective Lyot filter is promising for realizing highly efficient wavelength tuning and multiwavelength generation in all-polarization-maintaining fiber lasers where reflective filters are needed.

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Electrically tunable mode-locked fiber laser using laser induced graphene assisted long-period fiber grating

Cited by 3 publications

References 37 publications

Methods of Radiation Wavelength Tuning in Short-Pulsed Fibre Lasers

Methods of Radiation Wavelength Tuning in Short-Pulsed Fibre Lasers

Optically tunable mode-locked fiber laser using long-period grating coated with multiwall carbon nanotubes

All-polarization-maintaining, efficiently wavelength-tunable, Er-doped mode-locked fiber laser with a compact reflective Lyot filter

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