A narrow linewidth tunable single longitudinal mode Ga-EDF fiber laser

Halip, N.H. Mohamed; Bakar, M. H. Abu; Latif, Amirah Abdul; Muhd-Yasin, S. Z.; Zulkifli, Mohd Zamani; Mat-Sharif, K. A.; Omar, Nasr Y. M.; Mansoor, Amilia; Abdul-Rashid, H.A.; Mahdi, Mohd Adzir

doi:10.1016/j.optlastec.2017.11.044

Cited by 5 publications

(1 citation statement)

References 18 publications

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“…Narrow linewidth, single-longitudinal-mode (SLM) fiber laser operation with good stability, low noise and high coherence is important for optical communication and sensing systems. Various techniques have been proposed to realize SLM fiber laser [28][29][30][31]. A compound cavity structure composed of an active main ring cavity (MRC) and one or more passive subring cavities (SCs) possesses advantages of easy to fabricate and flexible wavelength tunability to achieve narrow linewidth SLM operation [32][33][34].…”

Section: Laser Physics Lettersmentioning

confidence: 99%

All-fiber single-longitudinal-mode narrow linewidth fiber ring laser with cylindrical vector beam output

Yao¹,

Yang²,

Shen³

et al. 2018

Laser Phys. Lett.

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A single-longitudinal-mode (SLM) fiber ring laser with cylindrical vector beam (CVB) output is experimentally demonstrated. Mode selection and spectrum filtering are achieved by introducing a two-mode fiber Bragg grating (TM-FBG) as an output mirror simultaneously. The SLM operation is obtained by using a compound ring cavity laser structure together with an un-pumped EDF acting as a saturable absorber. The fiber laser operates at a single wavelength of 1545.99 nm with a 20 dB linewidth of about 7.1 kHz and an optical signal to noise ratio of more than 68 dB. Through adjusting the intra-cavity polarization controllers, stable narrow linewidth radially and azimuthally polarized CVBs are both obtained.

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