Browsing by Author "Chen, C.-T."

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Using ring-filter and saturable-absorber-based filter for stable erbium fiber laser
(2007-07-01)
Yeh, C.-H.
;
Chen, C.-T.
;
Lee, C.-N.
;
Shih, F.-Y.
;
Chi, S.
A stable single-frequency dual-coupler ring (DCR) laser is proposed that operates in a single mode for more than an hour by an incorporating unpumped erbium-doped fiber (EDF) as a saturable-absorber filter and optimizing the length of the EDF used as gain medium. The proposed fiber laser doesn't use any fiber Bragg gratings or etalon filters into intracavity to lase a single-frequency. This laser has an optical signal to noise ratio (OSNR) of > 60 dB at 1562.9 nm. In addition, the stabilities of the output power and wavelength have also been studied.