Microresonator Kerr frequency combs with high conversion efficiency

被引：176

作者：

Xue, Xiaoxiao ^{[1
,2
]}

Wang, Pei-Hsun ^{[2
]}

Xuan, Yi ^{[2
,3
]}

Qi, Minghao ^{[2
,3
]}

Weiner, Andrew M. ^{[2
,3
]}

机构：

[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China

[2] Purdue Univ, Sch Elect & Comp Engn, 465 Northwestern Ave, W Lafayette, IN 47907 USA

[3] Purdue Univ, Birck Nanotechnol Ctr, 1205 West State St, W Lafayette, IN 47907 USA

来源：

LASER & PHOTONICS REVIEWS | 2017年 / 11卷 / 01期

基金：

美国国家科学基金会; 中国国家自然科学基金;

关键词：

Microresonator; optical frequency comb; Kerr effect; soliton; efficiency; GENERATION; RESONATORS;

D O I：

10.1002/lpor.201600276

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Microresonator-based Kerr frequency comb (microcomb) generation can potentially revolutionize a variety of applications ranging from telecommunications to optical frequency synthesis. However, phase-locked microcombs have generally had low conversion efficiency limited to a few percent. Here we report experimental results that achieve approximate to 30% conversion efficiency (approximate to 200mml:mspace width="0.33em"mml:mspace> mW on-chip comb power excluding the pump) in the fiber telecommunication band with broadband mode-locked dark-pulse combs. We present a general analysis on the efficiency which is applicable to any phase-locked microcomb state. The effective coupling condition for the pump as well as the duty cycle of localized time-domain structures play a key role in determining the conversion efficiency. Our observation of high efficiency comb states is relevant for applications such as optical communications which require high power per comb line.

引用

页数：7

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