Q‐Switching Pulses Generation Using Topology Insulators as Saturable Absorber

Harun, Sulaiman Wadi; Zulkipli, Nur Farhanah; Muhammad, Ahmad Razif; Latiff, Anas Abdul

doi:10.1002/9781119407317.ch6

Cited by 5 publications

(2 citation statements)

References 55 publications

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“…becomes broader with raising the pump level due to laser pulses becoming shorter with high intensity. 51 To demonstrate the proposed EDFL performance, rate, width, and average output power of the generated pulses, as well as their optical energy versus LD power, were achieved. For the 3 dB optical coupler, the repetition rate and width of output laser pulses were determined for pump power range from 96.25 to 167 mW and plotted in Figure 6A.…”

Section: Resultsmentioning

confidence: 99%

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Optimization of passive Q‐switched fiber laser employing MAX phase chromium aluminum carbide film

Najm,

Zhang,

Almukhtar

et al. 2024

Micro & Optical Tech Letters

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In this work, we proposed a mechanical exfoliation technique to compose a saturable absorber (SA) from MAX phase chromium aluminum carbide (Cr2AlC). The performance of a passive Q‐switched erbium‐doped fiber laser (EDFL) based on Cr2AlC‐SA was experimentally demonstrated. The optical properties of SA showed appropriate nonlinear absorption, with a non‐saturable absorption of 92.5%, and saturable absorption of 1.2%. The proposed EDFL was investigated using 50:50 and 80:20 output couplers (OCs). At 167 mW pumping power and 3 dB OC, the EDFL produced pulses with 2 μs width, and 163 kHz repetition rate. Moreover, with 80:20 OC, the EDFL produced shorter laser pulses with 1.46 μs width, and 135.2 kHz pulsing rate. The results reveal that the higher repetition rate with high energy can be obtained with a 3 dB coupler, while narrower pulse width is achieved with an 80:20 OC.

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Section: Resultsmentioning

confidence: 99%

“…Therefore, the nonlinearities due to adding Cr 2 AlC SA within EDFL ring, such as self‐phase modulation and cross‐phase modulation, would push the center wavelength to the shorter wavelength. Also, the spectrum becomes broader with raising the pump level due to laser pulses becoming shorter with high intensity 51 …”

Section: Resultsmentioning

confidence: 99%