A Unidirectional Er3+-Doped Fiber Ring Laser without Isolator
نویسندگان
چکیده
An Er"+-doped fiber ring laser with unidirectional operation without optical isolator has been investigated for different cavity conditions. The fiber ring laser cavity is built in such a way that the optical fields propagating in the two directions suffer different losses. As a consequence, the laser oscillation appears in a quasi-unidirectional form. By incorporating a fiber pigtailed bandpass filter to enhance mode competition, a purely unidirectional tunable fiber ring laser is obtained with high efficiency and broad tunability.
منابع مشابه
Unidirectional all-fiber thulium-doped laser based on theta cavity and fiber Bragg grating as filtering element
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