Please use this identifier to cite or link to this item: http://localhost/handle/Hannan/210351
Title: External Modulation Method for Generating Accurate Linear Optical FMCW
Authors: Yingkai Lyu;Tianxin Yang;Zhaoyu Lu;Cheng Guo;Chunfeng Ge;Zhaoying Wang;Dongfang Jia;Huabing Yin
Year: 2017
Publisher: IEEE
Abstract: Frequency modulation continuous wave (FMCW) lasers are key components in modern optical imaging. However, current intracavity modulation lasers do not exhibit low-frequency jitter rate and high linearity due to the inherent relaxation oscillations. Although this may be compensated in a direct modulation laser diode using an optoelectronic feedback loop, the available sweep speed is moderately small. In this letter, a special external modulation method is developed to improve the performance of FMCW. Since only the first sideband optical field is used during the entire generation process, phase noise is kept to a minimum and is also independent of the sweep speed. We demonstrate that the linearity and jitter rates do not deteriorate appreciably when the sweep speed is changed over three orders of magnitude, even up to the highest sweep speed of 2.5 GHz/&x03BC;s.
URI: http://localhost/handle/Hannan/210351
volume: 29
issue: 18
More Information: 1560,
1563
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8003373.pdf900.8 kBAdobe PDF
Title: External Modulation Method for Generating Accurate Linear Optical FMCW
Authors: Yingkai Lyu;Tianxin Yang;Zhaoyu Lu;Cheng Guo;Chunfeng Ge;Zhaoying Wang;Dongfang Jia;Huabing Yin
Year: 2017
Publisher: IEEE
Abstract: Frequency modulation continuous wave (FMCW) lasers are key components in modern optical imaging. However, current intracavity modulation lasers do not exhibit low-frequency jitter rate and high linearity due to the inherent relaxation oscillations. Although this may be compensated in a direct modulation laser diode using an optoelectronic feedback loop, the available sweep speed is moderately small. In this letter, a special external modulation method is developed to improve the performance of FMCW. Since only the first sideband optical field is used during the entire generation process, phase noise is kept to a minimum and is also independent of the sweep speed. We demonstrate that the linearity and jitter rates do not deteriorate appreciably when the sweep speed is changed over three orders of magnitude, even up to the highest sweep speed of 2.5 GHz/&x03BC;s.
URI: http://localhost/handle/Hannan/210351
volume: 29
issue: 18
More Information: 1560,
1563
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8003373.pdf900.8 kBAdobe PDF
Title: External Modulation Method for Generating Accurate Linear Optical FMCW
Authors: Yingkai Lyu;Tianxin Yang;Zhaoyu Lu;Cheng Guo;Chunfeng Ge;Zhaoying Wang;Dongfang Jia;Huabing Yin
Year: 2017
Publisher: IEEE
Abstract: Frequency modulation continuous wave (FMCW) lasers are key components in modern optical imaging. However, current intracavity modulation lasers do not exhibit low-frequency jitter rate and high linearity due to the inherent relaxation oscillations. Although this may be compensated in a direct modulation laser diode using an optoelectronic feedback loop, the available sweep speed is moderately small. In this letter, a special external modulation method is developed to improve the performance of FMCW. Since only the first sideband optical field is used during the entire generation process, phase noise is kept to a minimum and is also independent of the sweep speed. We demonstrate that the linearity and jitter rates do not deteriorate appreciably when the sweep speed is changed over three orders of magnitude, even up to the highest sweep speed of 2.5 GHz/&x03BC;s.
URI: http://localhost/handle/Hannan/210351
volume: 29
issue: 18
More Information: 1560,
1563
Appears in Collections:2017

Files in This Item:
File SizeFormat 
8003373.pdf900.8 kBAdobe PDF