Modulated bandwidth enhancement in an amplified feedback laser

Liqiang Yu; Lu Guo; Dan Lu; Chen Ji; Hao Wang; Lingjuan Zhao

doi:10.3788/COL201513.051401

Journals >Chinese Optics Letters >Volume 13 >Issue 5 >Page 051401 > Article

Chinese Optics Letters
Vol. 13, Issue 5, 051401 (2015)

Modulated bandwidth enhancement in an amplified feedback laser

Liqiang Yu, Lu Guo, Dan Lu^*, Chen Ji, Hao Wang, and Lingjuan Zhao

Author Affiliations

Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100086, China

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DOI: 10.3788/COL201513.051401 Cite this Article Set citation alerts

Liqiang Yu, Lu Guo, Dan Lu, Chen Ji, Hao Wang, Lingjuan Zhao. Modulated bandwidth enhancement in an amplified feedback laser[J]. Chinese Optics Letters, 2015, 13(5): 051401 Copy Citation Text

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Abstract

We report a direct, modulated bandwidth enhancement in a amplified feedback laser (AFL), both experimentally and numerically. By means of fabricated devices, an enhanced

3 dB

bandwidth of 27 GHz with an in-band flatness of

\pm 3 dB

is experimentally confirmed at 13 °C. It is numerically confirmed that the modulated bandwidth of the AFL can be enhanced to two times its original bandwidth, with more controlled flexibility to realize a flat, small-signal response.

K = \sqrt{R} \exp (- a_{P} L_{P}) \exp ((g_{A} - a_{A}) L_{A}), ϕ = \arg (\sqrt{R}) + ϕ_{P} + α_{H} g_{A} L_{A},

(1)

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Liqiang Yu, Lu Guo, Dan Lu, Chen Ji, Hao Wang, Lingjuan Zhao. Modulated bandwidth enhancement in an amplified feedback laser[J]. Chinese Optics Letters, 2015, 13(5): 051401

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