Wavelength switchable all-fiber mode-locked laser based on nonlinear multimode interference

Lin, Jin; Dong, Zhipeng; Dong, Tianhao; Zhang, Yiming; Dai, Chao; Yao, Peijun; Gu, Changzhi; Xu, Lixin

doi:10.1016/j.optlastec.2021.107093

Cited by 18 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, it is observed that the frequency peak of pulses are located at 15.33 MHz with the single-to-noise ratio (SNR) of more than 40 dB by the ratio-frequency spectrum analyzer, which verifies that the laser oscillator is operating at the fundamental frequency. In addition, the SNR higher than 40 dB of the lasers confirms that the fiber laser operates in a relatively stable work regime as analyzed in [22]. The average pulse width is estimated be to lower than 350 ps as shown in the figure 3(c).…”

Section: Resultssupporting

confidence: 67%

“…In 2012, Zhang et al first reported a tunable all-fiber dissipative-soliton fiber laser based on nonlinear polarization evolution, and the tunable wavelength over 12 nm was achieved by stretching the MMF [21]. Lin et al reported a switchable single wavelength and dual-wavelength all-fiber mode-locked lasers based on the MMI, which the tunable range is from 1558 to 1531 nm [22]. Chang et al reported that the central wavelengths of the NLP are switchable from 1034.6 to 1072.2 nm based on the no-core fiber-gradedindex MMF (GIMF) hybrid structure [23], and a wavelengthtunable with a broad range of 46 nm was achieved in the ring-cavity mode-locked fiber laser based on the GIMF and polarization controller (PC) [24].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Wavelength-tunable mode-locked linear-cavity Yb-doped fiber laser based on GIMF

Qiu¹,

Pan²,

Wang³

et al. 2022

Laser Phys.

View full text Add to dashboard Cite

A wavelength-tunable passive mode-locked linear-cavity Yb-doped fiber (YDF) laser has been demonstrated. The mode-locked operation was realized by using a semiconductor saturation absorption mirror as a cavity end-reflector. The laser wavelength was tuned by moving the horizontally adjustable platforms to bend a segment of the graded-index multimode fibers (GIMFs) in the cavity. The central wavelength of the output pulse is continuously adjustable in our experiment and the tunable range is from 1031.99 to 1039.32 nm. The output pulses have a 3 dB bandwidth of 1.77 nm and the fundamental repetition rate of 15.33 MHz. The average output power is 15.18 mW, the corresponding pulse energy is 0.99 nJ. The experimental results show that GIMF can be used as an efficient and simple way to tune the wavelength output in the mode-locked linear-cavity YDF laser.

show abstract

Section: Resultssupporting

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Wavelength-tunable mode-locked linear-cavity Yb-doped fiber laser based on GIMF

Qiu¹,

Pan²,

Wang³

et al. 2022

Laser Phys.

View full text Add to dashboard Cite

show abstract

“…In recent years, mode-locked fiber lasers operated in the multiwavelength regime have attracted more and more attention due to their wide range of applications, such as in terahertz wave generation, microwave generation, and comb spectroscopy. [4][5][6] There are mainly two approaches that have been used to realize the mode-locking operations in multi-wavelength regimes: active and passive mode-locking techniques. 7,8 The active technique has been reported as an effective method for generating multiwavelength pulses.…”

Section: Introductionmentioning

confidence: 99%

“…Mode-locking is considered to be one of the most efficient and powerful methods for generating optical pulse trains. In recent years, mode-locked fiber lasers operated in the multiwavelength regime have attracted more and more attention due to their wide range of applications, such as in terahertz wave generation, microwave generation, and comb spectroscopy 4 – 6 There are mainly two approaches that have been used to realize the mode-locking operations in multiwavelength regimes: active and passive mode-locking techniques 7 , 8 .…”

Section: Introductionmentioning

confidence: 99%

Switchable mode-locked ytterbium-doped fiber laser based on macrobending loss tuning of figure-eight knot fiber structure

Al-Janabi,

Merza,

Al-Hayali

et al. 2024

Opt. Eng.

View full text Add to dashboard Cite

We report on the demonstration of a switchable and adjustable spacing multiwavelength nanosecond pulsed ytterbium-doped fiber laser (YDFL) operating in a modelocking regime by macrobending loss tuning induced in a figure-eight knot shape. The figure-eight knot-based Mach-Zehnder interferometer (MZI) was established by wrapping a section of single-mode fiber into two elliptical loops by twisting one end of the fiber onto the other without splicing. Combining the proposed MZI with a polarization controller (PC) acts as a selective comb filter and a nanosecond pulse generator. By appropriately adjusting the bending diameter of the MZI structure inside the YDFL cavity, the laser can be operated in a single-and dual-wavelength with a maximum spacing range of 18.5 nm. Furthermore, the number of lasing wavelengths was directly controlled by only altering the pump power; dual and triple wavelengths were achieved as the pump power was increased from 127 to 210 mW, respectively. The appropriate adjustment of the PC cascaded with the proposed comb filter in the laser cavity allows for the generation of up to quadruple switchable wavelengths of nanosecond mode-locking pulses with a pulse duration of 6.2 ns and repetition rate of 71.4 MHz located between 1061.17 and 1038.92 nm. The experimental results indicate that the proposed configuration of the MZI-based comb filter can provide great potential in various photonics applications.

show abstract

“…However, the low-dimensional materials may suffer irreversible damage cause of higher-power laser operation for prolonged time, resulting in increased loss or even failure to achieve the mode-locking operation. Commonly used optical devices to create saturable absorption effect are nonlinear optical loop mirror or amplification loop mirror (NOLM/NALM) [6][7][8], nonlinear multimode interference (NMI) [9,10], and nonlinear polarization rotation effect (NPR) [11][12]. In NOLM/NALM based fiber lasers, the nonlinear phase shift difference is accumulated by the two optical signals propagated in opposite directions [6].…”

Section: Introductionmentioning

confidence: 99%