Metrological-grade terahertz frequency combs

被引：0

作者：

Riccardi, Elisa ^{[1
,2
]}

Pistore, Valentino ^{[1
,2
]}

Consolino, Luigi ^{[3
,4
]}

Sorgi, Alessia ^{[3
,4
]}

Cappelli, Francesco ^{[3
,4
]}

Eramo, Roberto ^{[3
,4
]}

De Natale, Paolo ^{[3
,4
]}

Li, Lianhe ^{[5
]}

Davies, A. Giles ^{[5
]}

Linfield, Edmund H. ^{[5
]}

Vitiello, Miriam S. ^{[1
,2
]}

机构：

[1] CNR Ist Nanosci, NEST, Piazza San Silvestro 12, I-56127 Pisa, Italy

[2] Scuola Normale Super Pisa, Piazza San Silvestro 12, I-56127 Pisa, Italy

[3] CNR Ist Nazl Ott, Sesto Fiorentino, Italy

[4] European Lab Non Linear Spect, Sesto Fiorentino, Italy

[5] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

来源：

2022 47TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER AND TERAHERTZ WAVES (IRMMW-THZ 2022) | 2022年

关键词：

D O I：

10.1109/IRMMW-THz50927.2022.9895713

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Metrological-grade frequency comb (FC) synthesizers are the ideal sources for quantum applications. At terahertz (THz) frequencies, electrically pumped quantum cascade lasers (QCLs) have shown quantum-limited frequency noise operation, phase/frequency absolute referencing and self-starting FC operation, albeit over a rather restricted dynamic range. Here, we conceive a technological approach to achieve FC operation over the entire available gain bandwidth and across almost the whole lasing regime at THz frequencies, by increasing the mirror losses of its Fabry-Perot cavity through coating the back facet with an epitaxially-grown multilayer graphene film.

引用

页数：2

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