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Multiwavelength erbium-doped fiber laser employing a nonlinear optical loop mirror |
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| Authors: | Xinhuan Feng Hwa-yaw Tam P.K.A. Wai |
| Affiliation: | a Photonics Research Centre, Department of Electrical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China b Photonics Research Centre, Department of Electronics and Information Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong SAR, China |
| Abstract: | A stable and broad bandwidth multiwavelength erbium-doped fiber laser is proposed and demonstrated successfully. A nonlinear optical loop mirror which induces wavelength-dependent cavity loss and behaves as an amplitude equalizer is employed to ensure stable room-temperature multiwavelength operation. Up to 50 wavelengths lasing oscillations with wavelength spacing of 0.8 nm within a 3-dB spectral range of 1562-1605 nm has been achieved. The measured power fluctuation of each wavelength is about 0.1 dB within a 2-h period. |
| Keywords: | Erbium-doped fiber laser Nonlinear optical loop mirror Intensity-dependent loss |
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