Direct link of a mid-infrared QCL to a frequency comb by optical injection

被引：48

作者：

Borri, S. ^{[1
,2
]}

Galli, I. ^{[1
,2
]}

Cappelli, F. ^{[3
]}

Bismuto, A. ^{[4
]}

Bartalini, S. ^{[1
,2
]}

Cancio, P. ^{[1
,2
]}

Giusfredi, G. ^{[1
,2
]}

Mazzotti, D. ^{[1
,2
]}

Faist, J. ^{[4
]}

De Natale, P. ^{[1
,2
]}

机构：

[1] CNR, INO, I-50125 Firenze Fi, Italy

[2] LENS European Lab Nonlinear Spect, I-50019 Sesto Fiorentino Fi, Italy

[3] Univ Firenze, Dipartimento Fis & Astron, I-50019 Sesto Fiorentino Fi, Italy

[4] ETH, Inst Quantenelekt, CH-8072 Zurich, Switzerland

来源：

OPTICS LETTERS | 2012年 / 37卷 / 06期

关键词：

QUANTUM-CASCADE LASERS; ROOM-TEMPERATURE; INTRINSIC LINEWIDTH; MU-M; NOISE; LOCKING;

D O I：

10.1364/OL.37.001011

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A narrow-linewidth comb-linked nonlinear source is used as master radiation to injection lock a room-temperature mid-infrared quantum cascade laser (QCL). This process leads to a direct lock of the QCL to the optical frequency comb, providing the unique features of narrow linewidth, absolute frequency, higher output power, and wide mode-hop-free tunability. The QCL reproduces the injected radiation within more than 94%, with a reduction of the frequency-noise spectral density by 3 to 4 orders of magnitude up to about 100 kHz, and a linewidth narrowing from a few MHz to 20 kHz. (C) 2012 Optical Society of America

引用

页码：1011 / 1013

页数：3

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