Maturation of a single frequency ErYAG laser for water vapor/methane DIAL application

Patrick M. Burns; Moran Chen; Kegan Orlowski; Dave Pachowicz

doi:10.1117/12.2587891

12 April 2021 Maturation of a single frequency ErYAG laser for water vapor/methane DIAL application

Patrick M. Burns, Moran Chen, Kegan Orlowski, Dave Pachowicz

Proceedings Volume 11744, Laser Radar Technology and Applications XXVI; 117440D (2021) https://doi.org/10.1117/12.2587891
Event: SPIE Defense + Commercial Sensing, 2021, Online Only

Abstract

Fibertek is under contract with Nasa Langley for the development of a laser transmitter for water vapor differential absorption lidar (DIAL) measurements. Water vapor plays a central role in feedback mechanisms linking components and processes in the Earth’s atmosphere. Studying atmospheric water vapor content is important for understanding global energy transport and climate change. The driving design parameter for the water vapor DIAL application is a narrow single frequency linewidth with wavelength tunability that is coincident with a water vapor absorption line. Fibertek has developed a frequency doubled seeded single frequency resonantly pumped ErYAG laser system that can probe water vapor lines in the 822-823nm band. As an added benefit, the laser fundamental wavelength at 1645nm allows for probing atmospheric methane, which also plays an important role in climate change research. The laser emits 3mJ at 1645nm and 3mJ at 822nm at 1kHz with beam quality on the order of M²=1.6. Fibertek has packaged the ErYAG laser in an environmentally hardened housing for an airborne DIAL application. This paper will present current results of the ErYAG laser work, progress in increasing the output power, efficiency, and reliability of the laser to meet requirements for a follow-on space qualifiable laser and plans for environmental testing the system.

Conference Presentation

Citation Download Citation

Patrick M. Burns, Moran Chen, Kegan Orlowski, and Dave Pachowicz "Maturation of a single frequency ErYAG laser for water vapor/methane DIAL application", Proc. SPIE 11744, Laser Radar Technology and Applications XXVI, 117440D (12 April 2021); https://doi.org/10.1117/12.2587891

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available