Next Article in Journal
Ultra-High Light Extraction Efficiency and Ultra-Thin Mini-LED Solution by Freeform Surface Chip Scale Package Array
Previous Article in Journal
Decomposition Characterizations of Methane Hydrate Confined inside Nanoscale Pores of Silica Gel below 273.15 K
Previous Article in Special Issue
Power Allocation Optimization Design for the Quadrichromatic LED Based VLC Systems with Illumination Control
Article Menu

Export Article

Open AccessArticle
Crystals 2019, 9(4), 201; https://doi.org/10.3390/cryst9040201

High Stability LED-Pumped Nd:YVO4 Laser with a Cr:YAG for Passive Q-Switching

1,2,3, 1,2,3,*, 1,2,3, 1,2,3, 1,2, 1,2, 1,2,3,*, 1,2,3 and 1,2
1
Aerospace Information Research Insititute, Chinese Academy of Science, Beijing 100094, China
2
National Engineering Research Center for DPSSL, Beijing 100094, China
3
University of Chinese Academy of Sciences, Beijing 100049, China
*
Authors to whom correspondence should be addressed.
Received: 23 February 2019 / Revised: 13 March 2019 / Accepted: 14 March 2019 / Published: 10 April 2019
(This article belongs to the Special Issue Recent Advances in Light-Emitting Diodes (LEDs))
  |  
PDF [3115 KB, uploaded 12 April 2019]
  |  

Abstract

With improvements in light-emitting diode (LED) performance and a sharp decline in price, a light source with the irradiance of a laser and the cost of an LED is worthy of further study. We demonstrated a LED-pumped Nd:YVO4 laser in quasi-continuous-wave (QCW) and passively Q-switched (PQS) regime. With an incident pump energy of 6.28 mJ (150 μs pulses at 1 Hz), the Nd:YVO4 laser has an energy of 206 μJ at 1064 nm in the QCW regime. The optical conversion efficiency of the system is 4.1%, and the slope efficiency is 9.0%. A pulsed energy of 2.5 μJ was obtained with a duration of 897 ns (FWHM) in the PQS regime, which means the peak power is 2.79 W. The output energy stability is 97.54%. View Full-Text
Keywords: (140.3580) lasers; solid-state; (230.3670) light-emitting diodes; (140.3540) lasers; Q-switched; (140.5560) pumping (140.3580) lasers; solid-state; (230.3670) light-emitting diodes; (140.3540) lasers; Q-switched; (140.5560) pumping
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Xiao, H.; Zhao, T.; Ge, W.; Zhong, Q.; Li, M.; Yu, J.; Fan, Z.; Bian, S.; Chen, Y. High Stability LED-Pumped Nd:YVO4 Laser with a Cr:YAG for Passive Q-Switching. Crystals 2019, 9, 201.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Crystals EISSN 2073-4352 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top