Mid-infrared 1 Watt hollow-core fiber gas laser source

Mengrong Xu, Fei Yu, Jonathan Knight

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We report the characteristics of a 1 Watt hollow-core fiber gas laser, emitting continuous-wave in the mid-infrared. Our system is based on an acetylene-filled hollow-core optical fiber, guiding with low losses at both the pump and laser wavelengths and operating in the single-pass ASE regime. By systematic characterization of the pump absorption and output power dependence on gas pressure, fiber length and pump intensity, we determine that the reduction of pump absorption at high pump flux and the degradation of gain performance at high gas pressure necessitate the use of increased gain fiber length for efficient lasing at higher powers. Low fiber attenuation is therefore key to efficient high-power laser operation. We demonstrate 1.1 Watt output power at 3.1 μm wavelength by using a high-power EDFA pump in a single-pass configuration, approximately 400 times higher CW output power than in the ring cavity previously reported.
Original languageEnglish
Pages (from-to)4055-4058
JournalOptics Letters
Volume42
Issue number20
Early online date4 Oct 2017
DOIs
Publication statusPublished - 15 Oct 2017

Fingerprint

gas lasers
fiber lasers
hollow
pumps
gas pressure
fibers
output
flux pumps
aeroservoelasticity
wavelengths
acetylene
high power lasers
continuous radiation
lasing
optical fibers
attenuation
degradation
cavities
rings
configurations

Cite this

Mid-infrared 1 Watt hollow-core fiber gas laser source. / Xu, Mengrong; Yu, Fei; Knight, Jonathan.

In: Optics Letters, Vol. 42, No. 20, 15.10.2017, p. 4055-4058.

Research output: Contribution to journalArticle

Xu, Mengrong ; Yu, Fei ; Knight, Jonathan. / Mid-infrared 1 Watt hollow-core fiber gas laser source. In: Optics Letters. 2017 ; Vol. 42, No. 20. pp. 4055-4058.
@article{63b6f1e7270f4aa9b97bdb99e3658ff6,
title = "Mid-infrared 1 Watt hollow-core fiber gas laser source",
abstract = "We report the characteristics of a 1 Watt hollow-core fiber gas laser, emitting continuous-wave in the mid-infrared. Our system is based on an acetylene-filled hollow-core optical fiber, guiding with low losses at both the pump and laser wavelengths and operating in the single-pass ASE regime. By systematic characterization of the pump absorption and output power dependence on gas pressure, fiber length and pump intensity, we determine that the reduction of pump absorption at high pump flux and the degradation of gain performance at high gas pressure necessitate the use of increased gain fiber length for efficient lasing at higher powers. Low fiber attenuation is therefore key to efficient high-power laser operation. We demonstrate 1.1 Watt output power at 3.1 μm wavelength by using a high-power EDFA pump in a single-pass configuration, approximately 400 times higher CW output power than in the ring cavity previously reported.",
author = "Mengrong Xu and Fei Yu and Jonathan Knight",
year = "2017",
month = "10",
day = "15",
doi = "10.1364/OL.42.004055",
language = "English",
volume = "42",
pages = "4055--4058",
journal = "Optics Letters",
issn = "0146-9592",
publisher = "Optical Society of America",
number = "20",

}

TY - JOUR

T1 - Mid-infrared 1 Watt hollow-core fiber gas laser source

AU - Xu, Mengrong

AU - Yu, Fei

AU - Knight, Jonathan

PY - 2017/10/15

Y1 - 2017/10/15

N2 - We report the characteristics of a 1 Watt hollow-core fiber gas laser, emitting continuous-wave in the mid-infrared. Our system is based on an acetylene-filled hollow-core optical fiber, guiding with low losses at both the pump and laser wavelengths and operating in the single-pass ASE regime. By systematic characterization of the pump absorption and output power dependence on gas pressure, fiber length and pump intensity, we determine that the reduction of pump absorption at high pump flux and the degradation of gain performance at high gas pressure necessitate the use of increased gain fiber length for efficient lasing at higher powers. Low fiber attenuation is therefore key to efficient high-power laser operation. We demonstrate 1.1 Watt output power at 3.1 μm wavelength by using a high-power EDFA pump in a single-pass configuration, approximately 400 times higher CW output power than in the ring cavity previously reported.

AB - We report the characteristics of a 1 Watt hollow-core fiber gas laser, emitting continuous-wave in the mid-infrared. Our system is based on an acetylene-filled hollow-core optical fiber, guiding with low losses at both the pump and laser wavelengths and operating in the single-pass ASE regime. By systematic characterization of the pump absorption and output power dependence on gas pressure, fiber length and pump intensity, we determine that the reduction of pump absorption at high pump flux and the degradation of gain performance at high gas pressure necessitate the use of increased gain fiber length for efficient lasing at higher powers. Low fiber attenuation is therefore key to efficient high-power laser operation. We demonstrate 1.1 Watt output power at 3.1 μm wavelength by using a high-power EDFA pump in a single-pass configuration, approximately 400 times higher CW output power than in the ring cavity previously reported.

U2 - 10.1364/OL.42.004055

DO - 10.1364/OL.42.004055

M3 - Article

VL - 42

SP - 4055

EP - 4058

JO - Optics Letters

JF - Optics Letters

SN - 0146-9592

IS - 20

ER -