Wide-band multiwavelength Brillouin–Raman fiber laser based on feedback optimization

Ahmad, Harith; Al-Alimi, A. W.

doi:10.1016/j.optcom.2019.124402

Cited by 7 publications

(2 citation statements)

References 31 publications

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“…A tunable laser source can be used as the BP source to generate tunable MBRCFL [35][36][37][38]. This tunability is achieved by the cost of increasing the length of Raman gain fiber or RP power since the linewidth of the tunable laser sources are higher than DFB laser sources and leads to an increase in the Brillouin power threshold.…”

Section: Resultsmentioning

confidence: 99%

18.4 GHz evenly spaced flat multi-wavelength Brillouin–Raman comb fiber laser in the U-band region

Soltanian¹,

Long²,

Goher³

et al. 2021

J. Opt.

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We report on a double spaced Brillouin–Raman comb fiber laser covering the spectral range of 1654–1677 nm. A 3 W fiber laser source with center wavelength at 1545 nm is used as the Raman pump for a 2.6 km dispersion compensation fiber to generate peak Raman gain at 13.2 THz away from the Brillouin pump (BP) which is around 1655 nm. A 5 mW narrow linewidth laser diode is utilized as the BP to generate multiwavelength Brillouin–Raman comb fiber laser (MBRCFL). A stable MBRCFL is generated with maximum bandwidth of 23 nm which contains 136 Brillouin Stokes with 0.168 nm spacing between BP and first Stoke corresponding to 18.4 GHz frequency spacing, an average power of 340 mW and optical signal to noise ratio of 26 dB. The output power fluctuation of less than 4% is measured over a period of 4 h. Moreover, the slope efficiency of 34% is achieved while the flat-amplitude bandwidth of about 17 nm is observed.

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Section: Resultsmentioning

confidence: 99%

18.4 GHz evenly spaced flat multi-wavelength Brillouin–Raman comb fiber laser in the U-band region

Soltanian¹,

Long²,

Goher³

et al. 2021

J. Opt.

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“…In 2019, a multi-wavelength Brillouin-Raman fiber laser with a 51-nm-wide bandwidth was proposed and demonstrated, which is configured in a half-open cavity design with a variable optical attenuator to control and optimize the mirror reflectivity in the cavity. [16] In the following year, the same group replaced the variable optical attenuator with an arcshaped optical fiber attenuator to control the mirror reflectivity, thereby suppressing gain competition among longitudinal cavity modes and obtaining almost the same bandwidth. [17] All above mentioned are half-open cavity structures with unidirectional output, which features a Brillouin comb with interval of a single Brillouin frequency shift.…”

Section: Introductionmentioning

confidence: 99%

Broadband bidirectional Brillouin–Raman random fiber laser with ultra-narrow linewidth

Yang 杨,

Li 李,

Zou 邹

et al. 2024

Chinese Phys. B

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We present a Brillouin-Raman random fiber laser (BRRFL) with full-open linear cavity structure to generate broadband Brillouin frequency comb (BFC) with double Brillouin-frequency-shift spacing. The incorporation of a regeneration portion consisting of an Erbium-doped fiber and a single-mode fiber enables the generation of broadband BFC. The dynamics of broadband BFC generation changing with the pump power (EDF and Raman) and Brillouin pump (BP) wavelength are investigated respectively in detail. Under suitable conditions, the bidirectional BRRFL proposed can produce a flat-amplitude BFC with 40.7 nm bandwidth ranging from 1531 nm to 1571.7 nm, and built-in 242 orders Brillouin Stokes lines (BSLs) with double Brillouin-frequency-shift spacing. Moreover, the linewidth of single BSL was experimentally measured to be about 2.5 kHz. The broadband bidirectional narrow-linewidth BRRFL has great potential applications for optical communication, optical sensing, spectral measurement and so on.

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A multi-wavelength Brillouin fiber laser of switchable frequency spacing based on a bi-directional ring cavity

Geng

Jiang

et al. 2023

Optics Communications

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Wide-band multiwavelength Brillouin–Raman fiber laser based on feedback optimization

Cited by 7 publications

References 31 publications

18.4 GHz evenly spaced flat multi-wavelength Brillouin–Raman comb fiber laser in the U-band region

18.4 GHz evenly spaced flat multi-wavelength Brillouin–Raman comb fiber laser in the U-band region

Broadband bidirectional Brillouin–Raman random fiber laser with ultra-narrow linewidth

A multi-wavelength Brillouin fiber laser of switchable frequency spacing based on a bi-directional ring cavity

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