发明名称 |
Discretely ITU-T channel grid wavelength tunable single longitudinal mode erbium-doped fiber ring laser |
摘要 |
Provided is a fiber ring laser capable of obtaining a back-up laser light and standard light having a wavelength continuously tuned in a single mode with equal spacing of 12.5 GHz, 25 GHz, 50 GHz or 100 GHz recommended by ITU-T Recommendation G. 692 & G. 694.1 in a C-band and an L-band using a fiber tunable etalon filter, an air gap etalon filter and a saturable absorber in an optical fiber laser resonator having a serial ring shape using a C-band optical amplifier and an L-band optical amplifier. The fiber ring laser can generate laser light having a wavelength tuned by more than 70 nm, excellent output power flatness and a source spontaneous emission ratio of more than 70 dB in 361 channels with equal spacing of 25 GHz by applying a bias voltage to a voltage-operated piezoelectric element of a tunable etalon filter. A single longitudinal mode operation of the fiber ring laser can be obtained by using a saturable absorber serving as a narrow-bandwidth filter.
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申请公布号 |
US2006216031(A1) |
申请公布日期 |
2006.09.28 |
申请号 |
US20060436752 |
申请日期 |
2006.05.18 |
申请人 |
KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE, REPUBLIC OF KOREA |
发明人 |
SUH HO S.;MOON HAN S.;LEE WON K.;RYU HAN Y.;KANG SEON M. |
分类号 |
H04J14/02 |
主分类号 |
H04J14/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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