Switchable Wide-Band Multi-Wavelength Brillouin-Erbium Fiber Laser Based on Random Distributed Feedback

Wang, Fei; Gong, Yifan

doi:10.1109/access.2020.3042187

Cited by 4 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, due to the multiple Rayleigh scattering feedback mechanism and its unique spectral characteristics, it also has good application prospects in the fields of optical fiber sensing 8 and speckle imaging. 9 In recent years, the research reports on RFLs mainly use nonlinear effects such as stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) as well as doped rare-earth fiber gain to amplify laser signals, 10 and then realize multi-wavelength cascade output through random distributed feedback formed by Rayleigh scattering. For example, Mei et al 11 designed a multi-wavelength Brillouin Raman random laser with a full-open cavity structure, which consists of an erbium-doped fiber (EDF) amplifier and SMF.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, the research reports on RFLs mainly use nonlinear effects such as stimulated Brillouin scattering (SBS) and stimulated Raman scattering (SRS) as well as doped rare-earth fiber gain to amplify laser signals, 10 and then realize multi-wavelength cascade output through random distributed feedback formed by Rayleigh scattering. For example, Mei et al 11 .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Tunable and switchable multi-wavelength random fiber laser based on random distributed feedback and improved Lyot filter

Qi,

Zhou,

Zhang

et al. 2024

Opt. Eng.

View full text Add to dashboard Cite

A tunable and switchable multi-wavelength random fiber laser (MW-RFL) is proposed and experimentally demonstrated in this work, which consists of a random distributed feedback mechanism, an improved Lyot filter, and a nonlinear optical loop mirror (NOLM). The theoretical derivation and simulation analysis of the improved Lyot filter are carried out by using the transfer matrix theory. The results show that by adjusting the polarization controller (PC) in the filter, not only the channel interval can be switched between 0.9 and 0.45 nm, but also the extinction ratio (ER) of the transmission spectrum can be adjusted and the wave peak position can be moved. The feedback mechanism of the proposed laser is provided by the randomly distributed backward Rayleigh scattering generated in the single-mode fiber. By changing the pump laser power, the number of output laser channels will be linearly increased. When the channel interval is kept constant, the wavelength can be tuned within a certain range by carefully adjusting the PC3 in the NOLM. When the channel interval of the spectrum is 0.9 nm, the wavelength tuning ranges of the three and four laser channels are 3.6 and 3.5 nm, respectively. When the channel interval of the spectrum is 0.45 nm, the wavelength tuning ranges of the three and four laser channels are 2.8 and 2.77 nm, respectively. Then the variations of the output spectrum when using 25 km single-mode fiber (SMF) are studied. It is observed that the linewidth and side mode suppression ratio (SMSR) of the laser channel are significantly increased. Finally, the stability of the random laser is discussed, and the maximum central wavelength drift and peak power fluctuation measured at room temperature are 0.05 nm and 0.34 dB, respectively. The average peak power and SMSR are maintained at −4.47 dBm and 34.6 dB, respectively, which confirms that the laser has good stability.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tunable and switchable multi-wavelength random fiber laser based on random distributed feedback and improved Lyot filter

Qi,

Zhou,

Zhang

et al. 2024

Opt. Eng.

View full text Add to dashboard Cite

show abstract

Switchable wide-band multi-wavelength fiber laser via Brillouin random lasing resonance

Wang¹,

Wu²,

Xia³

2022

Optics & Laser Technology

View full text Add to dashboard Cite

Widely tunable and switchable multiwavelength erbium-doped fiber laser based on a single ring cavity

mirza¹,

Ghafoor

Atieh

et al. 2022

J. Opt. Soc. Am. B

View full text Add to dashboard Cite

In this paper, we propose and demonstrate through numerical simulations a novel, to the best of our knowledge, widely tunable and switchable multiwavelength erbium-doped fiber laser (EDFL) operating in the 1524–1650 nm wavelength range covering the C-, L-, and U-bands. The EDFL is based on a single ring cavity and a single forward pump source operating at 980 nm wavelength. The length of the erbium-doped fiber and pumping configuration is optimized, enabling a wide tuning of 126 nm with an average lasing power of 15 dBm. Switchable multiple wavelengths are generated from the EDFL through an intracavity tunable optical filter (TOF) and a specially designed out-of-cavity comb filter (CF). Forty-nine wavelengths having average optical power and linewidth of around −10 dBm and 0.01 nm, respectively, are obtained at the output of the CF. Moreover, the free spectral range among the multiple wavelengths is adjusted easily by simply varying the frequency of sinusoidal radio frequency signal used to modulate the lasing signal obtained by tuning the intracavity TOF at a particular wavelength with the help of a dual-drive Mach–Zehnder modulator. The proposed EDFL is low cost, efficient, and highly stable with an average output power of around 15 dBm for 10% output coupling ratio over a 126 nm wide tuning range covering C-, L- and U-bands.

show abstract

Switchable Wide-Band Multi-Wavelength Brillouin-Erbium Fiber Laser Based on Random Distributed Feedback

Cited by 4 publications

References 20 publications

Tunable and switchable multi-wavelength random fiber laser based on random distributed feedback and improved Lyot filter

Tunable and switchable multi-wavelength random fiber laser based on random distributed feedback and improved Lyot filter

Switchable wide-band multi-wavelength fiber laser via Brillouin random lasing resonance

Widely tunable and switchable multiwavelength erbium-doped fiber laser based on a single ring cavity

Contact Info

Product

Resources

About