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Proceedings Paper

Tunable linear-step-swept light source based on time-delayed spectrum stitching technique
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Paper Abstract

We present a step-swept light source with high linearity and tunable frequency step based on the lightwave synthesized frequency sweeper (LSFS). Different from the traditional internal modulation, this light source can effectively avoid complex frequency-calibration and deduce the spectrum stitching error by using the external modulation and a time delayed spectrum stitching technique. Experimentally, a k-space swept with > -0.99997 swept linearity is achieved. The swept range are 5.135 nm with 10 GHz swept step and 3.902 nm with 7.5 GHz swept step. The spectrum stitching-error is less than 2.92% and 0.65% respectively.

Paper Details

Date Published: 10 March 2020
PDF: 9 pages
Proc. SPIE 11279, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII, 1127924 (10 March 2020); doi: 10.1117/12.2542176
Show Author Affiliations
Lai Wen, Key Lab. of the Ministry of Education on Optoelectronic Information Technology (China)
Tianjin Univ. (China)
Zhaoying Wang, Key Lab. of the Ministry of Education on Optoelectronic Information Technology (China)
Tianjin Univ. (China)
Quan Yuan, Key Lab. of the Ministry of Education on Optoelectronic Information Technology (China)
Tianjin Univ. (China)
Tianxin Yang, Key Lab. of the Ministry of Education on Optoelectronic Information Technology (China)
Tianjin Univ. (China)
Chunfeng Ge, Key Lab. of the Ministry of Education on Optoelectronic Information Technology (China)
Tianjin Univ. (China)
Diannan Hu, Key Lab. of the Ministry of Education on Optoelectronic Information Technology (China)
Tianjin Univ. (China)
Jiaqi Qin, Key Lab. of the Ministry of Education on Optoelectronic Information Technology (China)
Tianjin Univ. (China)


Published in SPIE Proceedings Vol. 11279:
Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications XIII
Laurence P. Sadwick; Tianxin Yang, Editor(s)

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