| 基于宽禁带氮化物的微腔光频梳进展（特邀） |
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| 引用本文： | 孙长征,郑焱真,熊兵,汪莱,郝智彪,王健,韩彦军,李洪涛,罗毅.基于宽禁带氮化物的微腔光频梳进展（特邀）[J].红外与激光工程,2022,51(5):20220270-1-20220270-7. |
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| 作者姓名： | 孙长征 郑焱真 熊兵 汪莱 郝智彪 王健 韩彦军 李洪涛 罗毅 |
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| 作者单位： | 清华大学 电子工程系，北京 100084 |
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| 基金项目： | 国家重点研发计划(2021YFB2800604)；国家自然科学基金(61975093) |
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| 摘 要： | 微腔光频梳在光谱测量、微波光子学、光学原子钟和相干光通信等领域具有重要的应用。宽禁带氮化物半导体材料，如氮化铝（AlN）和氮化镓（GaN）等属于非中心对称晶体，具有二阶和三阶光学非线性系数，宽带的透明窗口以及与蓝宝石衬底较高的折射率差，使其成为研究非线性光子器件的理想平台。文中介绍了氮化物微腔的特性，同时对基于氮化物微腔光梳的相关研究进展，包括AlN微腔中的宽谱光频梳产生和光学参量振荡、GaN微腔中的孤子光频梳产生等进行了介绍和展望。
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| 关 键 词： | 氮化铝 氮化镓 光频梳 光学微腔 |
| 收稿时间： | 2022-03-10 |
Advances in III-nitride-based microresonator optical frequency combs (Invited) |
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| Affiliation: | Department of Electronic Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | Chip-scale optical frequency combs based on microresonators have great potentials in spectroscopy, microwave photonics, optical atomic clocks and coherent optical communications. The non-centrosymmetric wurtzite crystal structure of aluminum nitride (AlN) and gallium nitride (GaN) allows them to exhibit both second- and third-order nonlinear optical coefficients, together with wide transparency window and large refractive index contrast against sapphire substrate, making III-nitrides an attractive platform for nonlinear photonics. The basic properties of AlN and GaN microresonators as well as recent advances in III-nitride-based microresonator frequency combs are presented, including broadband frequency comb generation and optical parametric oscillation in AlN microresonators, and soliton microcomb generation in GaN microresonators. |
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