期刊
OPTICS LETTERS
卷 46, 期 4, 页码 769-772出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.416825
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类别
资金
- Nakajima Foundation
- Yazaki Memorial Foundation for Science and Technology
- KDDI Foundation
- Konica Minolta Science and Technology Foundation
- Mazda Foundation [17KK-050]
- Japan Society for the Promotion of Science [17K14691]
- Grants-in-Aid for Scientific Research [17K14691] Funding Source: KAKEN
The study explores a novel concept of cascaded single side band (SSB) comb generation to improve the carrier-to-noise ratio (CNR) as the bandwidth of the SSB comb widens. Experimentally, a maximum CNR improvement of 11.3 dB was demonstrated under injection locking (IL) conditions. This proposed technique effectively enhances the CNR of wide-bandwidth SSB combs.
We investigate a novel concept of cascaded single side band (SSB) comb generation for improving the carrier-to-noise ratio (CNR), which degrades when the bandwidth of the SSB comb becomes wider. Wavelength-multiplexed seed lasers are simultaneously modulated in a recirculating frequency shifter loop with an SSB modulator, an Er-doped fiber amplifier, and a fiber Bragg grating whose reflective notch filter nature enables seed lasers to be synchronized through the injection locking (IL). A maximum CNR improvement of 11.3 dB is experimentally demonstrated under the IL condition. The proposed technique effectively improves the CNR of wide-bandwidth SSB combs. (C) 2021 Optical Society of America
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