Infrared and Laser Engineering, Volume. 46, Issue 11, 1122003(2017)
All optical modulation of whispering-gallery-mode optical micro-cavities with Raman gain
Based on the high demand for all optical control and all optical switches in optical communication network, the Raman gain induced resonance control of whispering-gallery-mode optical micro-cavities was investigated theoretically and experimentally. Theoretical analysis shows that Raman gain can compensate cavity loss and change the coupling regime of micro-cavities system. As a result on-resonance transmission in the micro-cavities system can be controlled without any mechanical movement. In experiment fiber taper coupled silica micro-toroid system was studied. Raman gain was pumped with an ultra-low pump power of 560 ?滋W, with this Raman gain the fiber taper coupled micro-cavity system was turned from deep under coupling regime to critical coupling regime and the on-resonance transmission of the 1 545.7 nm signal light was turned down by 13.5 dB.
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Yang Xu, Li Yaming, Guo Suli, Li Jing, Liu Xudong. All optical modulation of whispering-gallery-mode optical micro-cavities with Raman gain[J]. Infrared and Laser Engineering, 2017, 46(11): 1122003
Category: 光通信与光传感
Received: Mar. 1, 2017
Accepted: Apr. 17, 2017
Published Online: Dec. 26, 2017
The Author Email: Xu Yang (yangxumail@foxmail.com)