Development of a compact light source at 1.67 micrometer for methane leak detection using DIAL

Nilesh J. Vasa; Kouji Saito; Kouji Ikuta; Yuji Oki; Mitsuo Maeda

doi:10.1117/12.417081

Development of a compact light source at 1.67 micrometer for methane leak detection using DIAL

Nilesh J. Vasa, Kouji Saito, Kouji Ikuta, Yuji Oki, Mitsuo Maeda

Department of I&E Visionaries

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

2 Citations (Scopus)

Abstract

In the present work, a sensing system for methane gas leakage monitoring based on a differential absorption lidar with a high temporal resolution is proposed and a spectrally narrowed light source at 1.67 μm is developed for the same. To realize a compact light source, an injection seeded optical parametric oscillator (OPO) combined with two-stage optical parametric amplifiers (OPAs) is considered. Both OPO and OPAs were pumped by a compact frequency doubled Nd:YAG laser, and a single-mode diode laser (781.6 nm) was employed for injection seeding of the OPO. The output energy of around 5 mJ corresponding to a pump input of 85 mJ was obtained using Ce doped KTP (Ce:KTiOPO₄) crystals. The spectral width of the source was measured as 0.5 cm^-1 with a beam divergence angle of less than 2 mrad. These output characteristics are satisfactorily meeting the requirements to detect the methane leakage in a short range.

Original language	English
Pages (from-to)	471-479
Number of pages	9
Journal	Proceedings of SPIE-The International Society for Optical Engineering
Volume	4153
DOIs	https://doi.org/10.1117/12.417081
Publication status	Published - 2001

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.417081

Cite this

@article{33b469a94053461692540958460b6646,

title = "Development of a compact light source at 1.67 micrometer for methane leak detection using DIAL",

abstract = "In the present work, a sensing system for methane gas leakage monitoring based on a differential absorption lidar with a high temporal resolution is proposed and a spectrally narrowed light source at 1.67 μm is developed for the same. To realize a compact light source, an injection seeded optical parametric oscillator (OPO) combined with two-stage optical parametric amplifiers (OPAs) is considered. Both OPO and OPAs were pumped by a compact frequency doubled Nd:YAG laser, and a single-mode diode laser (781.6 nm) was employed for injection seeding of the OPO. The output energy of around 5 mJ corresponding to a pump input of 85 mJ was obtained using Ce doped KTP (Ce:KTiOPO4) crystals. The spectral width of the source was measured as 0.5 cm-1 with a beam divergence angle of less than 2 mrad. These output characteristics are satisfactorily meeting the requirements to detect the methane leakage in a short range.",

author = "Vasa, {Nilesh J.} and Kouji Saito and Kouji Ikuta and Yuji Oki and Mitsuo Maeda",

year = "2001",

doi = "10.1117/12.417081",

language = "English",

volume = "4153",

pages = "471--479",

journal = "Proceedings of SPIE-The International Society for Optical Engineering",

issn = "0277-786X",

publisher = "SPIE",

}

TY - JOUR

T1 - Development of a compact light source at 1.67 micrometer for methane leak detection using DIAL

AU - Vasa, Nilesh J.

AU - Saito, Kouji

AU - Ikuta, Kouji

AU - Oki, Yuji

AU - Maeda, Mitsuo

PY - 2001

Y1 - 2001

N2 - In the present work, a sensing system for methane gas leakage monitoring based on a differential absorption lidar with a high temporal resolution is proposed and a spectrally narrowed light source at 1.67 μm is developed for the same. To realize a compact light source, an injection seeded optical parametric oscillator (OPO) combined with two-stage optical parametric amplifiers (OPAs) is considered. Both OPO and OPAs were pumped by a compact frequency doubled Nd:YAG laser, and a single-mode diode laser (781.6 nm) was employed for injection seeding of the OPO. The output energy of around 5 mJ corresponding to a pump input of 85 mJ was obtained using Ce doped KTP (Ce:KTiOPO4) crystals. The spectral width of the source was measured as 0.5 cm-1 with a beam divergence angle of less than 2 mrad. These output characteristics are satisfactorily meeting the requirements to detect the methane leakage in a short range.

AB - In the present work, a sensing system for methane gas leakage monitoring based on a differential absorption lidar with a high temporal resolution is proposed and a spectrally narrowed light source at 1.67 μm is developed for the same. To realize a compact light source, an injection seeded optical parametric oscillator (OPO) combined with two-stage optical parametric amplifiers (OPAs) is considered. Both OPO and OPAs were pumped by a compact frequency doubled Nd:YAG laser, and a single-mode diode laser (781.6 nm) was employed for injection seeding of the OPO. The output energy of around 5 mJ corresponding to a pump input of 85 mJ was obtained using Ce doped KTP (Ce:KTiOPO4) crystals. The spectral width of the source was measured as 0.5 cm-1 with a beam divergence angle of less than 2 mrad. These output characteristics are satisfactorily meeting the requirements to detect the methane leakage in a short range.

UR - http://www.scopus.com/inward/record.url?scp=0035034842&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035034842&partnerID=8YFLogxK

U2 - 10.1117/12.417081

DO - 10.1117/12.417081

M3 - Article

AN - SCOPUS:0035034842

SN - 0277-786X

VL - 4153

SP - 471

EP - 479

JO - Proceedings of SPIE-The International Society for Optical Engineering

JF - Proceedings of SPIE-The International Society for Optical Engineering

ER -

Development of a compact light source at 1.67 micrometer for methane leak detection using DIAL

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this