CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 7193 > Article
Paper
27 February 2009 Optimization of a high-power fiber-coupled diode-end-pumped Nd:YVO4 solid state laser
Ashraf F. El-Sherif
Author Affiliations +
Proceedings Volume 7193, Solid State Lasers XVIII: Technology and Devices; 71930O (2009) https://doi.org/10.1117/12.808539
Event: SPIE LASE: Lasers and Applications in Science and Engineering, 2009, San Jose, California, United States
Abstract
Nd:YVO4 is widely and commercially available laser material for diode-pumped lasers. Compared to Nd:YAG, Nd:YVO4 has a larger stimulated emission cross-section, larger absorption coefficient and broader absorption bandwidth. It has lower threshold and its output power is less sensitive to the drifting of the diode pump wavelength. In this paper a Nd:YVO4 crystal at 1064nm pumped with a high power diode laser at 808nm is modeled and simulated using LasCAD software tool package. These models investigate the optimum cavity design parameters (length of the cavity, output coupler reflectivity, the beam overlap key parameter and crystal dimensions). The geometry of the cavity is optimized to produce maximum TEM00 laser output, taking into consideration the thermal gradient on the rod structure. The cavity optimum configuration neglecting the insignificant effect of changing rod length was; 66mm in length, 90% of output coupler reflectivity. The pumping beam spot size affects on the laser output and the final optical conversion efficiency. Controlling the pumped spot size (wg) to be equal the mode spot size (wg) the maximum beam overlap efficiency and consequently the maximum optical slope efficiency with the highest laser output were achieved. The Nd:YVO4 Crystal with dimension of (1-3mm) diameter and (7-10mm) length with 1% doping concentration (1at.%) is the suitable choice for the DEPSS (Diode End Pumped Solid State ) laser configuration. A final optical conversion efficiency of 52% and a maximum slope efficiency of 54% were obtained.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Ashraf F. El-Sherif "Optimization of a high-power fiber-coupled diode-end-pumped Nd:YVO4 solid state laser", Proc. SPIE 7193, Solid State Lasers XVIII: Technology and Devices, 71930O (27 February 2009); https://doi.org/10.1117/12.808539
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
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
Members: $17.00
Non-members: $21.00 ADD TO CART
PROCEEDINGS
 15 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Neodymium lasers
Crystals
Laser crystals
Semiconductor lasers
Solid state lasers
Output couplers
Optical simulations
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top