Kilohertz linewidth from frequency-stabilized mid-infrared quantum cascadelasers

Authors
Williams, RM Kelly, JF Hartman, JS Sharpe, SW Taubman, MS Hall, JL Capasso, F Gmachl, C Sivco, DL Baillargeon, JN Cho, AY
Citation
Rm. Williams et al., Kilohertz linewidth from frequency-stabilized mid-infrared quantum cascadelasers, OPTICS LETT, 24(24), 1999, pp. 1844-1846
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
OPTICS LETTERS
ISSN journal
01469592 → ACNP
Volume
24
Issue
24
Year of publication
1999
Pages
1844 - 1846
Database
ISI
SICI code
0146-9592(199912)24:24<1844:KLFFMQ>2.0.ZU;2-J
Abstract
Frequency stabilization of mid-IR quantum cascade (QC) lasers to the kilohe rtz level has been accomplished by use of electronic servo techniques. With this active feedback, an 8.5-mu m QC distributed-feedback laser is locked to the side of a rovibrational resonance of nitrous oxide (N2O) at 1176.61 cm(-1). A stabilized frequency-noise spectral density of 42 Hz/root Hz has been measured at 100 kHz; the calculated laser linewidth is 12 kHz. (C) 199 9 Optical Society of America OCIS codes: 000.2170, 120.5050, 120.4820, 140. 5960, 000.2170.