Dual-Wavelength Erbium-Doped Fiber Compound Ring Laser WITHOUT Filter in Ring Cavity

C.-H. Yeh, C.-T. Chen, F.-Y. Shih, C.-N. Lee, and S. Chi (Taiwan)


Dual-wavelength, dual-coupler, ring laser


A dual-wavelength erbium-doped fiber (EDF) compound ring laser using a double-ring filter (DRF) is proposed and demonstrated experimentally. By using a ring filter incorporated within the ring cavity, the fiber laser can lase two wavelengths simultaneously. This dual-wavelength output exhibits a good performance having the optical side-mode suppression ratios (SMSRs) of 45.3 and 46.3 dB and output powers of −8.1 and −7.1 dBm, respectively. In addition, the optical output stability of the ring laser has been also discussed.

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