Selectable and stable C-band multi-wavelength ring cavity erbium-doped fiber laser employing Sagnac loop and tunable filter

He, Wei; Zhu, Lianqing; Meng, Fanqi; Song, Yanming; Dong, Mingli

doi:10.1016/j.ijleo.2018.09.063

“…As is well known, homogeneous line broadening produces high mode competition, thus causing the generation of unstable emissions in multiwavelength EDFLs [7][8][9]. One possible solution to this problem is to use fiber wavelength filters; most of them work similarly to Sagnac [10], Fabry-Perot [11], and Mach-Zehnder [12] interferometers, though other filters based on different fiber structures can also be used [13][14][15][16][17][18][19][20][21][22]. Among these devices, the Mach-Zehnder interferometers (MZIs) have attracted significant attention due to their simple structure and the ease with which they can be manufactured; therefore, different optical fibers and fiber structures have been used to implement these interferometers.…”

Section: Introductionmentioning

confidence: 99%

Highly Stable Switchable Emissions of an Erbium-Doped Fiber Ring Laser Using Cascaded MZIs Based on CHCF

Herrera-Piad

¹

,

Marrujo-García

²

,

Hernández-Romano

³

et al. 2022

Machines

2

0

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A stable, single, and dual-wavelength erbium-doped fiber laser (EDFL), based on two Mach–Zehnder interferometers (MZIs), arranged in a cascade configuration, was proposed for experimental purposes. Both MZIs were assembled by splicing a capillary hollow-core fiber (CHCF) section between two multimode fibers (MMFs) segments. The novelty of this single and dual-wavelength EDFL is that the switchable operation of the laser is achieved by thermally tuning the interference pattern of one MZI and not by adjusting the polarization state inside the fiber ring cavity. The maximum measured value of SNR was 58.9 dB for the single and dual-wavelength laser emissions. Moreover, the stable output power exhibited by this EDFL, in terms of minimal power and wavelength fluctuations, at 0.05 dB and 10 pm, was detected during the single and dual-wavelength operation. It is worth noticing that switching is achieved at exact wavelength locations with a separation of 1.8 nm and not randomly, as reported by other works. These features make this switchable EDFL an appealing candidate for application in optical fiber communication systems and fiber sensing.

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“…Current research has advanced into a new niche area of 1.0 µm 3 , 4 , 1.46 µm to 1.53 µm (S-band) 5 – 8 and 1.565 µm to 1.625 µm (L-band) 9 – 11 , to meet the demand for higher bandwidth devices. During this time also, generation of various lasers configuration including multiwavelength 12 – 15 , pulsed 16 – 21 , swept sources 22 – 24 and fiber sensors 25 , 26 which cover a broad wavelength range from S- to L-bands has been a priority in various laboratories globally. In addition, 2 µm wavelength lasers can be applied to other fields such as optical spectroscopy, material processing, surgery, light detection and ranging measurements (LIDAR) 27 – 30 .…”

Section: Introductionmentioning

confidence: 99%

Passively mode locked thulium and thulium/holmium doped fiber lasers using MXene Nb2C coated microfiber

Ahmad

¹

,

Ramli

²

,

Ismail

³

et al. 2021

Sci Rep

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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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“…These devices generally cover a wavelength range stretching from the S-band (1460 nm to 1530 nm) [1][2][3] to L-band region (1565 nm to 1625 nm) [4][5][6] . The advancement of optical ber lasers has seen variety of laser output reported in a various laser con guration including pulsed [7][8][9][10][11][12] and multiwavelength [13][14][15][16] . Tremendous achievement in the eld of near-infrared (IR) ber lasers have kept this eld growing to cater the ever-growing demands from laser end-users.…”

Section: Introductionmentioning

confidence: 99%

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

Ahmad

¹

,

Ramli

²

,

Ismail

³

et al. 2021

Preprint

0

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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.

show abstract

Selectable and stable C-band multi-wavelength ring cavity erbium-doped fiber laser employing Sagnac loop and tunable filter

Cited by 16 publications

References 12 publications

Highly Stable Switchable Emissions of an Erbium-Doped Fiber Ring Laser Using Cascaded MZIs Based on CHCF

Highly Stable Switchable Emissions of an Erbium-Doped Fiber Ring Laser Using Cascaded MZIs Based on CHCF

Passively mode locked thulium and thulium/holmium doped fiber lasers using MXene Nb2C coated microfiber

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

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