Foundry fabricated photonic integrated circuit optical phase lock loop.
Foundry fabricated photonic integrated circuit optical phase lock loop.
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DOI：
10.1364/oe.25.016888
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发表时间：
2017-07
期刊：
影响因子：
3.8
通讯作者：
K. Balakier;M. Fice;L. Ponnampalam;C. Graham;A. Wonfor;A. Seeds;C. Renaud
中科院分区：
文献类型：
--
作者：
K. Balakier;M. Fice;L. Ponnampalam;C. Graham;A. Wonfor;A. Seeds;C. Renaud
本文描述了第一个工作在外差光学锁相环(OPLL)内的基于铸造工艺的InP光子集成电路(PIC)。利用PIC和外部电子电路实现了单线半导体激光器对输入参考激光器的锁相，频率偏移范围为4 GHz~12 GHz。PIC包含33个单芯片集成的有源和无源元件，充分展示了通用代工PIC制造模型的能力。OPLL的电子部分由商业上可获得的射频元件组成。这种半封装系统稳定了集成激光器的相位和频率，因此当OPLL工作时，可以产生绝对频率的高纯度外差信号，在距载波10 kHz处的相位噪声低于-100 dBc/Hz。这是单片集成OPLL所证明的最低相位噪声水平。
This paper describes the first foundry-based InP photonic integrated circuit (PIC) designed to work within a heterodyne optical phase locked loop (OPLL). The PIC and an external electronic circuit were used to phase-lock a single-line semiconductor laser diode to an incoming reference laser, with tuneable frequency offset from 4 GHz to 12 GHz. The PIC contains 33 active and passive components monolithically integrated on a single chip, fully demonstrating the capability of a generic foundry PIC fabrication model. The electronic part of the OPLL consists of commercially available RF components. This semi-packaged system stabilizes the phase and frequency of the integrated laser so that an absolute frequency, high-purity heterodyne signal can be generated when the OPLL is in operation, with phase noise lower than -100 dBc/Hz at 10 kHz offset from the carrier. This is the lowest phase noise level ever demonstrated by monolithically integrated OPLLs.