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arXiv 2412.08930physics.opticsphysics.app-ph
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一种用于异质二次谐波产生的光子集成电路

A photonic integrated circuit for heterogeneous second harmonic generation

Theodore J. Morin, Mingxiao Li, Federico Camponeschi, Hou Xiong, Deven Tseng, John E. Bowers

AI总结:

本研究提出一种分离式增益结构的光子集成电路,通过基频光在增益段间循环提升转换效率,采用薄膜铌酸锂与直接键合GaAs基激光器实现,可产生515-595 nm可见光,为绿隙相干光源提供了集成化方案。

摘要:

将基于GaAs的激光器与倍频波导进行异质集成,是在所谓的“绿隙”中实现可扩展相干光源的明确途径,但迄今为止,倍频系统一直依赖单独制造的激光器来提供足够的功率以产生二次谐波。本研究提出了一种光子集成电路(PIC),可降低对集成倍频器的性能要求。两个增益段由波导连接,中间设有频率转换器和波长分离器。基频光在增益段之间循环,直到被转换并通过波长分离器发射。本文讨论了这种分离式增益PIC的不同变体,该PIC采用薄膜铌酸锂和直接键合的GaAs基激光器实现,通过芯片端面和绝热锥进行耦合,可产生515-595 nm范围的可见光。

英文摘要:

Heterogeneous integration of GaAs-based lasers with frequency doubling waveguides presents a clear path to scalable coherent sources in the so-called green gap, yet frequency doubling systems have so far relied on separately manufactured lasers to deliver enough power for second harmonic generation. In this work, we propose a photonic integrated circuit (PIC) which alleviates the performance requirements for integrated frequency doublers. Two gain sections are connected by waveguides, with a frequency converter and a wavelength separator in between. The fundamental light circulates between the gain sections until it is converted and emitted through the wavelength separator. Variants of this separated gain PIC are discussed, and the PIC is implemented with thin film lithium niobate and directly bonded GaAs-based lasers, coupled by on-chip facets and adiabatic tapers, realizing visible light generation in the 515-595 nm range.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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