Mr. Shunsuke Watanabe Profile

Shunsuke Watanabe

at Oxide Corp

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 | 4 March 2019 Presentation

Fabrication of PP-LBGO device for 266nm generation with the 1st order QPM structure (Conference Presentation)

Junji Hirohashi, Koichi Imai, Shunsuke Watanabe, Mitsuyoshi Sakairi, Yasuhiro Tomihari

Proceedings Volume 10902, 1090206 (2019) https://doi.org/10.1117/12.2514795

KEYWORDS: Ultraviolet radiation, Beam shaping, Electrodes, Nonlinear optical materials, Laser systems engineering, Control systems, Phase matching, Crystals, Pulsed laser operation

Read Abstract +

Most of the nonlinear optical material for ultraviolet generation are borate material such as LBO, BBO, and CLBO. There are the intrinsic disadvantages of those UV devices such as walk-off and hygroscopicity. As a result, the laser system based on those devices always require a special beam shape treatment and an anti-humidity control during storage and in operation. On the other hand, quasi phase matching devices are very attractive since there are no requirement of beam shaping. We focus on periodically poled LaBGeO5 (PP-LBGO) device since it is QPM structure and transparent at UV region. In addition, even it is borate crystal, it does not have hygroscopicity. Therefore, it is easy to treat in the fabrication process and assembling phase. In this paper, fabrication of PP-LBGO for 266nm generation was demonstrated with the first order QPM structure. The periodicity of the first order QPM for 266 nm generation from 532 nm is approximately 2.1 micrometer. The thickness of 0.3 mm LBGO plates are prepared. The electrode pattern was created on the plate. Several different electrode size and poling conditions were investigated. Finally, we successfully fabricated 2.1 micrometer periodically poled structure with 0.3 mm thick device with 10 mm in length. Its aspect ratio of periodic structure was achieved approximately 300. By using fabricated device, the better conversion efficiency for 266 nm generation was confirmed than former 2nd order PP-LBGO device by using pulsed 532 nm laser.

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