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Narrow-spectral-span spectral beam combining with a nonparallel double-grating structure
Zhou, Quan; Zhou, Changhe; Yu, Na; Wei, Chunlong; Jia, Wei; Lu, Yancong; chazhou@mail.shcnc.ac.cn
2017
Source PublicationChin. Opt. Lett.
Volume15Issue:9
AbstractWe propose a nonparallel double-grating structure in a spectral-beam combining technique, where two gratings are placed nonparallel satisfying the Littrow mount in the focal region of the convergent lens. The most attractive advantage of this approach is that it will compress the spectral span into half of its original spectrum, which means the number of combined elements can be doubled in the gain range of diode lasers. Experimental results demonstrate that the CW output power of the combined beam is 30.9 W with a spectral span of 7.0 nm, compared with its original spectrum span of 13.6 nm, and the spectral beam combining efficiency is 70.5%. In consideration that a single grating could have a high efficiency of > 97% in a bandwidth of over ten nanometers, the efficiency loss of the grating pair should be less than 6%, which is acceptable for most applications, so this method of using double gratings should be highly interesting for practical applications when a nearly doubled number of diode lasers could be combined into one single laser compared with the previous single-grating methods.
SubtypeArticle
Department信息光电
DOI10.3788/COL201715.091403
Funding OrganizationShanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216] ; Shanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216] ; Shanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216] ; Shanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216]
Indexed BySCI
Funding OrganizationShanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216] ; Shanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216] ; Shanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216] ; Shanghai Science and Technology Committee [16DZ2290102, 15JC1403500]; Chinese Academy of Sciences [QYZDJ-SSW-JSC014]; National Natural Science Foundation of China [61405216]
WOS IDWOS:000410143200017
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.siom.ac.cn/handle/181231/28510
Collection信息光学与光电技术实验室
Corresponding Authorchazhou@mail.shcnc.ac.cn
Affiliation中国科学院上海光学精密机械研究所
Recommended Citation
GB/T 7714
Zhou, Quan,Zhou, Changhe,Yu, Na,et al. Narrow-spectral-span spectral beam combining with a nonparallel double-grating structure[J]. Chin. Opt. Lett.,2017,15(9).
APA Zhou, Quan.,Zhou, Changhe.,Yu, Na.,Wei, Chunlong.,Jia, Wei.,...&chazhou@mail.shcnc.ac.cn.(2017).Narrow-spectral-span spectral beam combining with a nonparallel double-grating structure.Chin. Opt. Lett.,15(9).
MLA Zhou, Quan,et al."Narrow-spectral-span spectral beam combining with a nonparallel double-grating structure".Chin. Opt. Lett. 15.9(2017).
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