Mr. Zhenyu Zhao Profile

Zhenyu Zhao

SPIE Involvement:

Author

Publications (1)

This will count as one of your downloads.

You will have access to both the presentation and article (if available).

DOWNLOAD NOW

This content is available for download via your institution's subscription. To access this item, please sign in to your personal account.

Email or Username Forgot your username?

Password Forgot your password?

Show

Keep me signed in

No SPIE account? Create an account

Proceedings Article | 23 August 2011 Paper

Research of large energy and high power Nd:Ce:YAG laser

Zhen-yu Zhao, Jin-song Nie

Proceedings Volume 8192, 819234 (2011) https://doi.org/10.1117/12.900811

KEYWORDS: Ions, Laser crystals, Crystals, Laser applications, Laser energy, Absorption, Pulsed laser operation, Solids, High power lasers, Particles

Read Abstract +

Currently, the output laser energy was enlarged mostly by using laser application technology and different pump styles were used, which made the laser volume large. In this thesis, the output laser energy was increased by improving the quality of laser crystal and using new style doped laser crystal, which can increase the capacity usage ratio of solid laser, and the beam quality was improved as well. In the paper, a new double-doped Nd:Ce:YAG laser crystal pumped by Xe-lamp and the plane-plane resonant was used as main oscillator of laser. There were two advantages using the method. Firstly, the absorption spectrum and emission band spectrum of Ce³⁺ were analyzed, which can create energy transition between Ce³⁺ and Nd³⁺. The Ce³⁺ ion in double-doped laser crystal can absorb pump light at ultraviolet band and create stimulated emission, which located at the absorption band of Nd³⁺ and made more Nd³⁺ ion create energy level transition. The inverted population increased. As result the capacity usage ratio of pumped energy was increased and the output energy of laser was enlarged. Secondly for the advantage of the limitation of plane-plane resonant to laser beam was strong, the angle of divergence was small at far field and the beam quality was good. Finally the pulsed laser energy was compressed to spike pulse by using passive Q-switched, and the peak power was increased. The experiments were carried out under the condition of passive Q-switched. When the input voltage was 800V, the laser beam was obtained at the oscillator stage, whose output energy was 651.5mJ. The pulse width was 20ns. The slope efficiency was 0.49%. Angle of divergence was better than 1.2 mrad. And peak power was 32.5KW. The experiment result is accordant with theoretical analyses. This solid laser has important potential application.

My Library

You currently do not have any folders to save your paper to! Create a new folder below.

Folder Name

Folder Description

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks. You are receiving this notice because your organization may not have SPIE eBooks access.*

*Shibboleth/Open Athens users─please sign in to access your institution's subscriptions.

To obtain this item, you may purchase the complete book in print or electronic format on SPIE.org.

ORGANIZATIONAL
Sign in with credentials provided by your organization.

Organizational Username

Organizational Password

Show/Hide Password

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:

Non-members: ADD TO CART

Keywords/Phrases

Search In:

Publication Years