An integrated high-performance ratio-metric wavelength measurement device on glass

作者：Wang, Gencheng^*; Yang, Bing; Shen, Ao; Pei, Chongyang; Yang, Longzhi; Yu, Hui; Jiang, Xiaoqing; Li, Yubo; Hao, Yinlei; Yang, Jianyi

来源：Journal of Optics, 2015, 17(10): 105802.

DOI：10.1088/2040-8978/17/10/105802

• Mach-Zehnder interferometer
• ratio-metric wavelength monitor
• ion-exchange
• x-type spectral response
• integrated optics

The measurable wavelength range and the resolution of the ratio-metric wavelength monitor are limited by each other in a conventional structure. To solve this problem we designed and fabricated a high-performance integrated double ratio-metric wavelength measurement device on glass by the method of ion-exchange. It consists of four unbalanced Mach-Zehnder interferometers (MZIs) to form a rough wavelength measurement with a wide range and a fine wavelength measurement with high resolution. The highest measured resolution can reach 10 pm in a 1.6 nm-wide wavelength range for the fine wavelength measurement together with a 45 nm-wide wavelength range for the rough measurement. By heating the unbalanced MZI, the performance of the fine wavelength monitor can be improved.

• 出版日期2015-10
• 单位浙江大学