Experimental demonstration of PT-symmetric stripe lasers (Laser Photonics Rev. 10(4)/2016)
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- 作者：Zhiyuan Gu ; Nan Zhang ; Quan Lyu ; Meng Li ; Shumin Xiao and Qinghai Song
- 刊名：Laser & Photonics Reviews
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：10
- 期：4
- 页码：697
- 全文大小：177K
- ISSN：1863-8899
文摘
A PT-symmetric configuration is applied by Gu et al. on a dye-doped waveguide, i. e., half gain and half loss. With the increase of pumping power, two adjacent modes merge and thus the mode spacing is doubled after the exceptional point. The laser and absorber are obtained simultaneously in this PT-symmetric system. This research provides a new platform to study the applications of unconventional lasers such as optical switches and direct modulated microlasers.