1867–2010 nm tunable femtosecond thulium-doped all-fiber laser

Sun, Biao; Luo, Jiaqi; Yan, Zhiyu; Liu, Kun; Ji, Junyuan; Zhang, Ying; Wang, Qi Jie; Yu, Xin

doi:10.1364/oe.25.008997

Cited by 40 publications

(12 citation statements)

References 25 publications

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“…This is a main characteristic of Tm–Ho-co-doped laser which requires a high pump power for energy transfer between Tm 3+ and Ho 3+ ions to emit dual wavelengths. The formation mechanism for dual-wavelength emission is different from those reported methods [ 30 , 38 , 39 , 40 , 41 , 42 , 43 , 44 ].…”

Section: Resultscontrasting

confidence: 64%

The Investigation on Ultrafast Pulse Formation in a Tm–Ho-Codoped Mode-Locking Fiber Oscillator

et al. 2021

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We experimentally investigate the formation of various pulses from a thulium–holmium (Tm–Ho)-codoped nonlinear polarization rotation (NPR) mode-locking fiber oscillator. The ultrafast fiber oscillator can simultaneously operate in the noise-like and soliton mode-locking regimes with two different emission wavelengths located around 1947 and 2010 nm, which are believed to be induced from the laser transition of Tm3+ and Ho3+ ions respectively. When the noise-like pulse (NLP) and soliton pulse (SP) co-exist inside the laser oscillator, a maximum output power of 295 mW is achieved with a pulse repetition rate of 19.85-MHz, corresponding to a total single pulse energy of 14.86 nJ. By adjusting the wave plates, the fiber oscillator could also deliver the dual-NLPs or dual-SPs at dual wavelengths, or single NLP and single SP at one wavelength. The highest 61-order harmonic soliton pulse and 33.4-nJ-NLP are also realized respectively with proper design of the fiber cavity.

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Section: Resultscontrasting

confidence: 64%

The Investigation on Ultrafast Pulse Formation in a Tm–Ho-Codoped Mode-Locking Fiber Oscillator

et al. 2021

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“…This feature allows a wide selection range of laser operations in the eye-safe spectral region, including the continuous-wave (CW) mode and the Q-switching mode. Such broad bandwidth is also known to be capable of generating femtosecond pulses in the mode-locking regime [27][28][29][30][31][32] .…”

Section: Introductionmentioning

confidence: 99%

Passively Mode-Locked Thulium- and Thulium/Holmium-Doped Fiber Lasers Using MXene Nb2C-Coated Microfiber

Ahmad

Ramli

Ismail

et al. 2021

Preprint

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As a result of the emergence of two-dimensional (2D) materials for various opto-electronics applications, a new class of materials named MXenes have been attracting interests due to their outstanding nonlinear properties. In this work, an MXene niobium carbide (Nb2C) was proposed and demonstrated as a saturable absorber to induce mode-locking in thulium- and thulium/holmium-doped fiber lasers. The Nb2C solution was first prepared using the liquid exfoliation technique, and then deposited onto a microfiber for integration into the laser cavity. Stable mode-locking operation was observed in both laser cavities, where the center wavelengths of the laser were recorded at 1944 nm for the TDFL and 1950 nm for the THDFL. The generated pulses in the TDFL and THDFL had repetition rates of 9.35 and 11.76 MHz respectively, while their corresponding pulse widths were 1.67 and 1.34 ps. Both of the lasers were highly stable, having SNR values of more than 52 dB and showed no major fluctuations when tested for their long-term stabilities. The results demonstrate an excellent performance of the Nb2C as a saturable absorber, offering opportunities to further explore MXenes for future photonics devices.

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“…Thus, how to achieve high stability, narrow linewidth, and wavelength flexibility with rapid wavelength tuning or selection are the key to successful deployment for thulium-doped fibers lasers (TDFL). The current tuning devices include fiber Bragg grating (FBG) [9][10][11][12][13], F-P cavity [14][15][16], Sagnac fiber ring [17,18], Lyot filter [19][20][21], Mach-Zehnder interferometer [22][23][24], liquid crystal spatial light modulator [25], digital micromirror device (DMD) [26][27][28], and so on. Up to now, a DMD chip as a semiconductor-based addressable micromirror array has drawn considerable attention due to its flexible and fast filtering functionality in optical switching, interconnecting, and lasers.…”

Section: Introductionmentioning

confidence: 99%

Wavelength-Flexible Thulium-Doped Fiber Laser Based on Digital Micromirror Array

et al. 2020

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Wavelength-tunable thulium-doped fiber laser is demonstrated employing a digital micromirror device (DMD) in combination with a fixed grating. The diffraction property of four typical models of DMDs and its steering efficiency for the laser system are analyzed based on two-dimensional grating theory. By spatially modulating reflective patterns on a DMD, the stable, fast, and flexible tuning of lasing wavelength from 1930 nm to 2000 nm is achieved with wavelength tuning accuracy of 0.1 nm. The side-mode suppression ratio is larger than 50 dB around the 2 μm band with 3 dB linewidth less than 0.05 nm. The wavelength drift and power fluctuation are lower than 0.05 nm and 0.1 dB within 1 h at the room temperature, respectively.

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1867–2010 nm tunable femtosecond thulium-doped all-fiber laser

Cited by 40 publications

References 25 publications

The Investigation on Ultrafast Pulse Formation in a Tm–Ho-Codoped Mode-Locking Fiber Oscillator

The Investigation on Ultrafast Pulse Formation in a Tm–Ho-Codoped Mode-Locking Fiber Oscillator

Passively Mode-Locked Thulium- and Thulium/Holmium-Doped Fiber Lasers Using MXene Nb2C-Coated Microfiber

Wavelength-Flexible Thulium-Doped Fiber Laser Based on Digital Micromirror Array

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