Monolithically Integrated Photonic Heterodyne System
Monolithically Integrated Photonic Heterodyne System
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DOI：
10.1109/jlt.2011.2158186
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发表时间：
2011-08
影响因子：
4.7
通讯作者：
L. Ponnampalam;M. Fice;F. Pozzi;C. Renaud;D. Rogers;I. Lealman;D. Moodie;P. Cannard;C. Lynch;L. Johnston;M. Robertson;R. Cronin;L. Pavlovič;L. Naglič;M. Vidmar;A. Seeds
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文献类型：
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作者：
L. Ponnampalam;M. Fice;F. Pozzi;C. Renaud;D. Rogers;I. Lealman;D. Moodie;P. Cannard;C. Lynch;L. Johnston;M. Robertson;R. Cronin;L. Pavlovič;L. Naglič;M. Vidmar;A. Seeds
本文介绍了第一个单片集成的光子外差系统的结果，该系统允许两个光源通过锁定到外部光学基准来相互锁相。这种最先制造的器件已经展示了高达50 GHz的高光谱纯度信号，其调谐范围受到输入波导损耗的限制。通过单片集成和定制的快速环路电子器件实现了信号传播延迟小于2 ns的成功锁相。该方法可以扩展到产生1太赫兹的信号。
This paper presents the results from the first monolithically integrated photonic heterodyne system that allows the two optical sources to be mutually phase locked by locking to an external optical reference. High-spectral-purity signals of up to 50 GHz have been demonstrated from this first fabricated device, where the tuning range was limited by losses in the input waveguide. Successful phase locking was accomplished through short signal propagation delay of less than 2 ns achieved by monolithic integration and custom-made fast loop electronics. The approach can be extended to generate signals at >; 1 THz.