Dynamic polarization attractors of dissipative solitons from carbon nanotube mode-locked Er-doped laser

Chen, Zhao; Dai, Lilong; Huang, Qianqian; Huang, Zinan; Mou, Chengbo; Araimi, Mohammed Al; Rozhin, Aleksey; Sergeyev, Sergey; Luo, Zhi‐Chao

doi:10.1515/nanoph-2019-0508

Cited by 9 publications

(7 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…3) Switchable mode‐locked fiber laser was presented in a dissipative soliton regime with normal GVD such as employing the dispersion compensating fiber (DCF). [ 175,178 ] The Hi‐1060 fiber in the laser cavity is intentionally bent to introduce strong cavity birefringence and filtering effect. [ 178 ] Therefore, the effective gain peak of the laser could be shifted by adjusting the polarization states.…”

Section: Mode‐locked Fiber Lasermentioning

confidence: 99%

“…In some cases, the degree of polarization state was studied with a polarimeter at different pump powers. [ 175 ] Besides the degree of the polarization state of ≈98% with a variation of ±0.015% over 1 min, the ellipticity was also studied from −3.28 to −3.34% with the polarimeter. [ 54 ] 4) In some cases, the mode‐locked laser was compressed before measurement.…”

Section: Mode‐locked Fiber Lasermentioning

confidence: 99%

“…A switchable C‐band wavelength from 1557.18 to 1532.6 nm for dissipative soliton mode‐locked EDFL was demonstrated by increasing pump power from 190 to 300 mW. [ 175 ] This is due to the higher emission cross‐section of EDF at 1530 nm than that at 1550 nm. At 230 mW, the dual‐wavelength mode‐locking operation was observed at 1557 and 1533 nm with a bandwidth of 9.2 and 3.2 nm, respectively.…”

Section: Mode‐locked Fiber Lasermentioning

confidence: 99%

See 2 more Smart Citations

A Comparison for Saturable Absorbers: Carbon Nanotube Versus Graphene

Lau

Liu

Qiu

2022

Advanced Photonics Research

View full text Add to dashboard Cite

Saturable absorption is a nonlinear optical phenomenon that is characterized by the reduced optical loss at high light intensity. At low light intensity, the saturable absorber (SA) absorbs light and results in an optical loss. When the light intensity is increased, the available energy states become depleted, leading to a reduction in absorption. For semiconductors, the saturated optical absorption under strong excitation is in conjunction with the Pauli expulsion of occupying carriers at the edge of the filled conduction band thus allowing photons to penetrate through the material without further absorption. [1] When incorporated into a mode-locked laser cavity, the saturable absorption process begins from the inherent noise fluctuations of a laser cavity. A dominant noise spike with the highest intensity will saturate the absorber and decreases the absorbance loss such as the pedestal peaks. [2] Next, this noise spike is amplified in subsequent round trips until a stable pulse train is eventually formed. This favors the generation of ultrafast laser pulses over continuous-wave laser operation. During the formation of ultrafast laser pulses, the SA is operated either as slow or fast SA. The main difference between these two SA configurations is their relaxation time. The relaxation time of a slow SA is longer than its pulse duration measured from the mode-locked laser. The long time constant results in reduced saturation intensity due to slow recovery of absorption. [3] Therefore, the slow SA self-starts the modelocked laser at a lower power threshold. In contrast, the relaxation time of fast SA is shorter than its pulse duration measured from the mode-locked laser. Owing to the fast relaxation time, the electrons in the conduction band will return to the valence band at a period shorter than the pulse duration. This constitutes the higher power threshold to self-start the mode-locked laser.Despite the difficulty to self-start the mode-locking, the fast SA is responsible for the stabilization of the laser. The fast SA has ultrafast carrier relaxation time for the SA to recover from bleaching with minimal time. [4] Besides stabilization, ultrafast relaxation time is also crucial to shortening the pulse duration of the mode-locked laser. [5] Before the advent of ultrashort pulse with relaxation time ranging from a few ps to a few hundred fs, semiconductor saturable absorber mirror (SESAM) was demonstrated with a complex post-fabrication process. For instance, ion implantation is needed to reduce its relaxation time to ps time scale. This encourages the discovery of a material with sub-picosecond recovery time, such as carbon nanotube (CNT) [6] and graphene. [7] Both CNT and graphene have ultrafast and slow recovery from saturation. In a femtosecond laser, the CNT will typically act as a slow SA due to its recovery time of few ps, whereas the graphene will typically act as a fast SA due to its

show abstract

Section: Mode‐locked Fiber Lasermentioning

confidence: 99%

Section: Mode‐locked Fiber Lasermentioning

confidence: 99%

Section: Mode‐locked Fiber Lasermentioning

confidence: 99%

See 1 more Smart Citation

A Comparison for Saturable Absorbers: Carbon Nanotube Versus Graphene

Lau

Liu

Qiu

2022

Advanced Photonics Research

View full text Add to dashboard Cite

show abstract

“…On the other hand, multi-wavelength passively mode-locked fiber lasers have been investigated extensively in the advancement of fascinating applications as optical fiber sensing, biomedical research, and wavelength division multiplexing (WDM) optical communication [20,21]. Several types of the saturable absorption materials that can realize multi-wavelength passive mode locking have been studied in depth [22][23][24][25][26]. Based on SESAM, Wu et al realized the dual-wavelength (1553 and 1562 nm) dissipative solitons in Er-doped fiber laser operating at normal dispersion regime [22].…”

Section: Introductionmentioning

confidence: 99%

“…Based on SESAM, Wu et al realized the dual-wavelength (1553 and 1562 nm) dissipative solitons in Er-doped fiber laser operating at normal dispersion regime [22]. By virtue of carbon nanotube SA, dual-wavelength vector solitons centered at 1533 and 1557 nm were achieved by Zhao et al [23]. Tunable dual-and triple-wavelength dissipative solitons were obtained from a Yb-doped fiber laser using graphene-oxide mode locker [24].…”

Section: Introductionmentioning

confidence: 99%

PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation

Liao

Zhao

2021

Nanomaterials

View full text Add to dashboard Cite

PbS quantum dots (QDs), a representative zero-dimensional material, have attracted great interest due to their unique optical, electronic, and chemical characteristics. Compared to one- and two-dimensional materials, PbS QDs possess strong absorption and an adjustable bandgap, which are particularly fascinating in near-infrared applications. Here, fiber-based PbS QDs as a saturable absorber (SA) are studied for dual-wavelength ultrafast pulses generation for the first time to our knowledge. By introducing PbS QDs SA into an erbium-doped fiber laser, the laser can simultaneously generate dual-wavelength conventional solitons with central wavelengths of 1532 and 1559 nm and 3 dB bandwidths of 2.8 and 2.5 nm, respectively. The results show that PbS QDs as broadband SAs have potential application prospects for the generation of ultrafast lasers.

show abstract

Modulating super-sech vector bisolitons

Zhang

Yang

et al. 2022

Optik

View full text Add to dashboard Cite

Dynamic polarization attractors of dissipative solitons from carbon nanotube mode-locked Er-doped laser

Cited by 9 publications

References 36 publications

A Comparison for Saturable Absorbers: Carbon Nanotube Versus Graphene

A Comparison for Saturable Absorbers: Carbon Nanotube Versus Graphene

PbS Quantum Dots Saturable Absorber for Dual-Wavelength Solitons Generation

Modulating super-sech vector bisolitons

Contact Info

Product

Resources

About