Widely tunable, narrow linewidth external-cavity gain chip laser for spectroscopy between 1.0-1.1 μm

Dong K. Shin; Bryce M. Henson; Roman I. Khakimov; Jacob A. Ross; Colin J. Dedman; Sean S. Hodgman; Kenneth G.H. Baldwin; Andrew G. Truscott

doi:10.1364/OE.24.027403

Widely tunable, narrow linewidth external-cavity gain chip laser for spectroscopy between 1.0-1.1 μm

Dong K. Shin^*, Bryce M. Henson, Roman I. Khakimov, Jacob A. Ross, Colin J. Dedman, Sean S. Hodgman, Kenneth G.H. Baldwin, Andrew G. Truscott

^*Corresponding author for this work

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

46 Citations (Scopus)

Abstract

We have developed and characterised a stable, narrow linewidth external-cavity laser (ECL) tunable over 100 nm around 1080 nm, using a single-angled-facet gain chip. We propose the ECL as a low-cost, high-performance alternative to fibre and diode lasers in this wavelength range and demonstrate its capability through the spectroscopy of metastable helium. Within the coarse tuning range, the wavelength can be continuously tuned over 30 pm (7.8 GHz) without mode-hopping and modulated with bandwidths up to 3 kHz (piezo) and 37(3) kHz (current). The spectral linewidth of the free-running ECL was measured to be 22(2) kHz (Gaussian) and 4.2(3) kHz (Lorentzian) over 22.5 ms, while a long-term frequency stability better than 40(20) kHz over 11 hours was observed when locked to an atomic reference.

Original language	English
Pages (from-to)	27403-27414
Number of pages	12
Journal	Optics Express
Volume	24
Issue number	24
DOIs	https://doi.org/10.1364/OE.24.027403
Publication status	Published - 28 Nov 2016

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@article{364f1235451c4d8e85484467eb74fff9,

title = "Widely tunable, narrow linewidth external-cavity gain chip laser for spectroscopy between 1.0-1.1 μm",

abstract = "We have developed and characterised a stable, narrow linewidth external-cavity laser (ECL) tunable over 100 nm around 1080 nm, using a single-angled-facet gain chip. We propose the ECL as a low-cost, high-performance alternative to fibre and diode lasers in this wavelength range and demonstrate its capability through the spectroscopy of metastable helium. Within the coarse tuning range, the wavelength can be continuously tuned over 30 pm (7.8 GHz) without mode-hopping and modulated with bandwidths up to 3 kHz (piezo) and 37(3) kHz (current). The spectral linewidth of the free-running ECL was measured to be 22(2) kHz (Gaussian) and 4.2(3) kHz (Lorentzian) over 22.5 ms, while a long-term frequency stability better than 40(20) kHz over 11 hours was observed when locked to an atomic reference.",

author = "Shin, {Dong K.} and Henson, {Bryce M.} and Khakimov, {Roman I.} and Ross, {Jacob A.} and Dedman, {Colin J.} and Hodgman, {Sean S.} and Baldwin, {Kenneth G.H.} and Truscott, {Andrew G.}",

note = "Publisher Copyright: {\textcopyright} 2016 Optical Society of America.",

year = "2016",

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day = "28",

doi = "10.1364/OE.24.027403",

language = "English",

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pages = "27403--27414",

journal = "Optics Express",

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T1 - Widely tunable, narrow linewidth external-cavity gain chip laser for spectroscopy between 1.0-1.1 μm

AU - Shin, Dong K.

AU - Henson, Bryce M.

AU - Khakimov, Roman I.

AU - Ross, Jacob A.

AU - Dedman, Colin J.

AU - Hodgman, Sean S.

AU - Baldwin, Kenneth G.H.

AU - Truscott, Andrew G.

PY - 2016/11/28

Y1 - 2016/11/28

N2 - We have developed and characterised a stable, narrow linewidth external-cavity laser (ECL) tunable over 100 nm around 1080 nm, using a single-angled-facet gain chip. We propose the ECL as a low-cost, high-performance alternative to fibre and diode lasers in this wavelength range and demonstrate its capability through the spectroscopy of metastable helium. Within the coarse tuning range, the wavelength can be continuously tuned over 30 pm (7.8 GHz) without mode-hopping and modulated with bandwidths up to 3 kHz (piezo) and 37(3) kHz (current). The spectral linewidth of the free-running ECL was measured to be 22(2) kHz (Gaussian) and 4.2(3) kHz (Lorentzian) over 22.5 ms, while a long-term frequency stability better than 40(20) kHz over 11 hours was observed when locked to an atomic reference.

AB - We have developed and characterised a stable, narrow linewidth external-cavity laser (ECL) tunable over 100 nm around 1080 nm, using a single-angled-facet gain chip. We propose the ECL as a low-cost, high-performance alternative to fibre and diode lasers in this wavelength range and demonstrate its capability through the spectroscopy of metastable helium. Within the coarse tuning range, the wavelength can be continuously tuned over 30 pm (7.8 GHz) without mode-hopping and modulated with bandwidths up to 3 kHz (piezo) and 37(3) kHz (current). The spectral linewidth of the free-running ECL was measured to be 22(2) kHz (Gaussian) and 4.2(3) kHz (Lorentzian) over 22.5 ms, while a long-term frequency stability better than 40(20) kHz over 11 hours was observed when locked to an atomic reference.

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U2 - 10.1364/OE.24.027403

DO - 10.1364/OE.24.027403

M3 - Article

SN - 1094-4087

VL - 24

SP - 27403

EP - 27414

JO - Optics Express

JF - Optics Express

IS - 24

ER -

Widely tunable, narrow linewidth external-cavity gain chip laser for spectroscopy between 1.0-1.1 μm

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