Multi-wavelength actively mode-locked fiber laser with a double-ring configuration and integrated cascaded sampled fiber Bragg gratings

LONG Xiao-bo; YANG Jian-liang

doi:10.3969/j.issn.1001-3806.2010.02.022

LASER TECHNOLOGY > 2010 > 34(2): 224-226,231. > DOI: 10.3969/j.issn.1001-3806.2010.02.022

LONG Xiao-bo, YANG Jian-liang. Multi-wavelength actively mode-locked fiber laser with a double-ring configuration and integrated cascaded sampled fiber Bragg gratings[J]. LASER TECHNOLOGY, 2010, 34(2): 224-226,231. DOI: 10.3969/j.issn.1001-3806.2010.02.022

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Multi-wavelength actively mode-locked fiber laser with a double-ring configuration and integrated cascaded sampled fiber Bragg gratings

LONG Xiao-bo¹,
YANG Jian-liang^2,3

1.
Department of Information Engineering, Xiangtan Polytechnic College, Xiangtan 411101, China;
2.
Photonies Research Centre, Nanyang Technological University, Singapore 639798 Singapore;
3.
College of Physics, Xiangtan University, Xiangtan 411105, China

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Received Date: February 18, 2009
Revised Date: March 15, 2009
Published Date: March 24, 2010

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Abstract

In order to obtain laser at multiple wavelengths, a modified multi-wavelength actively mode-locked fiber ring laser was proposed and experimentally demonstrated. In this kind of laser, stable multi-wavelength lasing is achieved by integrating cascaded sampled fiber Bragg gratings(SFBGs) into the laser cavity.To implement actively mode-locking technique, a double-ring cavity configuration was used to assure that the cavity lengths for all wavelengths lasing are identical.Thus, simultaneous mode locking of all wavelengths was successfully achieved by using the same mode-locking signal.It was shown in our experiments that up to 14 wavelengths were successfully demonstrated with a wavelength spacing of 1.6 nm.The output power was more than OdBm and the side mode suppression ratio was about 30dB. The highest mode-locking frequency was 1.05 GHz and the pulse-width of output pulse trains was 216ps.
- fiber optics,
- laser technique,
- sampled fiber Bragg grating,
- multi-wavelength fiber laser,
- mode-locking

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References

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