An integrated parity-time symmetric wavelength-tunable single-mode microring laser

Nature Communications
Weilin LiuJianping Yao

Abstract

Mode control in a laser cavity is critical for a stable single-mode operation of a ring laser. In this study we propose and experimentally demonstrate an electrically pumped parity-time (PT)-symmetric microring laser with precise mode control, to achieve wavelength-tunable single-mode lasing with an improved mode suppression ratio. The proposed PT-symmetric laser is implemented based on a photonic integrated circuit consisting of two mutually coupled active microring resonators. By incorporating multiple semiconductor optical amplifiers in the microring resonators, the PT-symmetry condition can be achieved by a precise manipulation of the interplay between the gain and loss in the two microring resonators, and the incorporation of phase modulators in the microring resonators enables continuous wavelength tuning. Single-mode lasing at 1,554.148 nm with a sidemode suppression ratio exceeding 36 dB is demonstrated and the lasing wavelength is continuously tunable from 1,553.800 to 1,554.020 nm.

References

Mar 21, 2008·Physical Review Letters·K G MakrisZ H Musslimani
Sep 4, 2008·Physical Review Letters·Shachar KlaimanNimrod Moiseyev
Sep 1, 2009·Nature·Rupert F OultonXiang Zhang
Oct 2, 2009·Physical Review Letters·A GuoD N Christodoulides
Jun 14, 2014·Nature Communications·M BrandstetterS Rotter
Nov 22, 2014·Science·Liang FengXiang Zhang
Nov 22, 2014·Science·Hossein HodaeiMercedeh Khajavikhan

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Citations

Jan 5, 2019·Science·Mohammad-Ali Miri, Andrea Alù
Jan 26, 2018·Scientific Reports·Chunling DingDuo Zhang
Mar 7, 2019·Light, Science & Applications·Yanzhong LiuMing Li
Jun 12, 2018·Science Advances·Jiejun Zhang, Jianping Yao
Nov 25, 2018·Optics Express·Jinhan RenMercedeh Khajavikhan
Feb 15, 2020·Optics Letters·Zhiqiang FanJianping Yao
Oct 30, 2020·Optics Express·Sergey V SuchkovAndrey A Sukhorukov
May 15, 2021·Optics Express·Si ZhuKei May Lau

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