NDLI: High power eye-safe Er3+:YVO4 laser diode-pumped at 976 nm

Content Provider	IET Digital Library
Author	Newburgh, G. A. Dubinskii, M.
Abstract	The performance of an eye-safe laser based on a Er-doped orthovanadate (Er:YVO4) single crystal, diode-pumped at 976 nm (4I15/2 → 4I11/2 transition) and operating at 1603 nm (4I13/2 → 4I15/2 transition) with near diffraction limited beam quality is reported. A 10 mm long Er3+:YVO4 slab, cut with its c-axis perpendicular to the laser cavity axis, was pumped in σ-polarisation and lased in π-polarisation. The laser operated in a quasi-continuous wave regime with nearly 9 W output power, and with a slope efficiency of about 39% with respect to absorbed power. This is believed to be the highest efficiency and highest power achieved from an Er3+:YVO4 laser pumped in the 970–980 nm absorption band.
Starting Page	855
Ending Page	857
Page Count	3
ISSN	00135194
Volume Number	52
e-ISSN	1350911X
Issue Number	Issue 10, May (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/52/10
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2016.0252
Journal	Electronics Letters
Publisher Date	2016-04-25
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	C-axis Design of Specific Laser System Diffraction Gratings Echelles Erbium Gratings High Power Eye-safe Laser Laser Cavity Axis Laser Cavity Resonator Laser Diode-pumping Laser Resonator And Cavities Lasing Action in SemiConductor Light Polarisation Near Diffraction Limited Beam Quality Optical Pumping Quasicontinuous Wave Regime Semiconductor Laser Single Crystal Size 10 Mm Slab Slabs Wavelength 1603 Nm Wavelength 970 Nm to 980 Nm Yttrium Compound YVO4:Er3+ Π-polarisation Σ-polarisation
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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