共 16 条
12-THz frequency difference measurements and noise analysis of an optical frequency comb in optical fibers
被引:16
作者:
Imai, K
[1
]
Widiyatmoko, B
[1
]
Kourogi, M
[1
]
Ohtsu, M
[1
]
机构:
[1] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Engn, Yokohama, Kanagawa 2268502, Japan
关键词:
electrooptic modulation;
fiber optics;
frequency conversion;
frequency measurement;
nonlinear optics;
nonlinear wave propagation;
phase modulation;
D O I:
10.1109/3.753660
中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
A span up to 50 THz of optical frequency comb (OFC) has been obtained by self-phase modulation in an optical fiber. The coherent nature of the process was verified by heterodyne-detecting the sidebands offset by up to 12 THz from the carrier. The signal-to-noise ratio (SNR) of the beat signal between a sideband at 12 THz offset and another single-mode laser was 32 dB in a 1-MHz bandwidth. Although the linewidth of each beat signal was maintained within a few megahertz, phase noise pedestal power increased with the offset frequency.
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页码:559 / 564
页数:6
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