An erbium-doped fiber ring laser, with a single-longitudinal-mode, operating at 1548.5 nm, has achieved traveling wave operation without the use of an optical isolator. The unidirectional operation is guaranteed by a combination of an output coupler and an external fiber Bragg grating. The laser can provide up to 19.6 mW output power. The linewidth of the laser was measured to be < 24 kHz.
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Department of Electronics Engineering and Information Science, University of Science and Technology of ChinaDepartment of Electronics Engineering and Information Science, University of Science and Technology of China
Qian J.-R.
Su J.
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Department of Electronics Engineering and Information Science, University of Science and Technology of ChinaDepartment of Electronics Engineering and Information Science, University of Science and Technology of China
Su J.
Wang X.-X.
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Department of Electronics Engineering and Information Science, University of Science and Technology of ChinaDepartment of Electronics Engineering and Information Science, University of Science and Technology of China
Wang X.-X.
Zhu B.
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Department of Electronics Engineering and Information Science, University of Science and Technology of ChinaDepartment of Electronics Engineering and Information Science, University of Science and Technology of China