High signal-to-noise ratio linear cavity multi-wavelength erbium-doped fibre laser with two intra-cavity fibre periodic filter

【Author】

Yanfeng Zhang, Yong Yao*, Qi Wang Research Center of Laser Technology, Harbin Institute of Technology, ShenZhen

【Abstract】

A new linear cavity multi-wavelength erbium-doped fibre laser with enhanced signal-to-noise ratio characteristics is demonstrated. The laser system is developed by two steps from a conventional ring cavity configuration which consists of a frequency-shifted cavity and single multi-wavelength filters. Firstly, the noises characteristic is improved about 2.8 dB on an average with the inset of a dual-pass Mach-Zender interferometer and shifting the station of output coupler However, the output power is suppressed about 1.5 dB on an average by the change. Next, the noises characteristic is further improved by about 4.3dB against the conventional ring cavity configuration and the output power is increased by about 1.8 dB by utilizing a special Bragg grating array replacing the F-P filter to compose a linear cavity configuration.. The emitting range with output flatness better than 3dB covers 20nm wavelengths from 1540 to 1560 nm, with line spacing of 0.8nm and average output power of 0.8dBm.The linear cavity multi-wavelength erbium-doped fibre laser with high signal-to noise ratio can be useful in a wavelength division multiplexing transmission system.

【Keywords】

Multi-wavelength erbium-doped fiber laser (MFEDFL), linear cavity, ring cavity, frequency shifter

References

To explore the background and basis of the node document

Springer Journals Database

Total: 16 articles

  • [1] Seung Kwan Kim;Moo Jung Chu;Jong Hyun lee, “Wideband multi-wavelength erbium-doped fibre ring laser with frequency shifted feedback,”, Optics Communications, Optics Communication (Optics Communication)
  • [2] Lim D S;Lee H K;Kim K H, Generation of multi-order stokes and anti-stokes line in a Brillouin/Erbium fibre laser with a sagnac loop mirror,”, Opt.Lett, Optics Letters (Optics Letters)
  • [3] Yamashita S;Hotate K, Multiwavelength erbium-doped fibre laser using intra-cavity etalon and cooled by liquid nitrogen,”, Electron.Lett, Electronics Letters (Electronics Letters)
  • [4] F.L.An,;X.Z.Lin,;E.Y.B.Pun ;and H.D.Liu, “Multi-wavelength operation of an erbium-doped fibre ring laser using a dual-pass M-Z comb filter,”, Optics Communication, Optics Communication (Optics Communication)

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