Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm

Sho Okubo; Kana Iwakuni; Hajime Inaba; Kazumoto Hosaka; Atsushi Onae; Hiroyuki Sasada; Feng Lei Hong

doi:10.7567/APEX.8.082402

Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm

Sho Okubo, Kana Iwakuni, Hajime Inaba, Kazumoto Hosaka, Atsushi Onae, Hiroyuki Sasada, Feng Lei Hong

Department of Physics

Research output: Contribution to journal › Article › peer-review

148 Citations (Scopus)

Abstract

We have carried out dual-comb spectroscopy and observed in a simultaneous acquisition a 140-THz-wide spectrum from 1.0 to 1.9 μm using two fiber-based frequency combs phase-locked to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C₂H₂, CH₄, and H₂O at different wavelengths across the whole spectrum. The determined transition frequencies of C₂H₂ agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.

Original language	English
Article number	082402
Journal	Applied Physics Express
Volume	8
Issue number	8
DOIs	https://doi.org/10.7567/APEX.8.082402
Publication status	Published - 2015 Aug 1

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.7567/APEX.8.082402

Cite this

@article{a3a64251886c4450bb00ede3fa4ac208,

title = "Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm",

abstract = "We have carried out dual-comb spectroscopy and observed in a simultaneous acquisition a 140-THz-wide spectrum from 1.0 to 1.9 μm using two fiber-based frequency combs phase-locked to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C2H2, CH4, and H2O at different wavelengths across the whole spectrum. The determined transition frequencies of C2H2 agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.",

author = "Sho Okubo and Kana Iwakuni and Hajime Inaba and Kazumoto Hosaka and Atsushi Onae and Hiroyuki Sasada and Hong, {Feng Lei}",

note = "Publisher Copyright: {\textcopyright} 2015 The Japan Society of Applied Physics.",

year = "2015",

month = aug,

day = "1",

doi = "10.7567/APEX.8.082402",

language = "English",

volume = "8",

journal = "Applied Physics Express",

issn = "1882-0778",

publisher = "Japan Society of Applied Physics",

number = "8",

}

TY - JOUR

T1 - Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm

AU - Okubo, Sho

AU - Iwakuni, Kana

AU - Inaba, Hajime

AU - Hosaka, Kazumoto

AU - Onae, Atsushi

AU - Sasada, Hiroyuki

AU - Hong, Feng Lei

PY - 2015/8/1

Y1 - 2015/8/1

N2 - We have carried out dual-comb spectroscopy and observed in a simultaneous acquisition a 140-THz-wide spectrum from 1.0 to 1.9 μm using two fiber-based frequency combs phase-locked to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C2H2, CH4, and H2O at different wavelengths across the whole spectrum. The determined transition frequencies of C2H2 agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.

AB - We have carried out dual-comb spectroscopy and observed in a simultaneous acquisition a 140-THz-wide spectrum from 1.0 to 1.9 μm using two fiber-based frequency combs phase-locked to each other. This ultrabroad-wavelength bandwidth is realized by setting the difference between the repetition rates of the two combs to 7.6 Hz using the sub-Hz-linewidth fiber combs. The recorded spectrum contains five vibration-rotation bands of C2H2, CH4, and H2O at different wavelengths across the whole spectrum. The determined transition frequencies of C2H2 agree with those from the previous sub-Doppler resolution measurement of individual lines using CW lasers within 2 MHz.

UR - http://www.scopus.com/inward/record.url?scp=84938633012&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84938633012&partnerID=8YFLogxK

U2 - 10.7567/APEX.8.082402

DO - 10.7567/APEX.8.082402

M3 - Article

AN - SCOPUS:84938633012

VL - 8

JO - Applied Physics Express

JF - Applied Physics Express

SN - 1882-0778

IS - 8

M1 - 082402

ER -

Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this