Prof. Guobin Fan Profile

Prof. Guobin Fan

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 | 13 December 2024 Paper

Study on high brightness fiber coupled diode laser through VBG (volume Bragg grating) beam combining

Lanping Zhang, Quanwei Jiang, Hualing Wu, Chengqian Wang, Songxin Gao, Guobin Fan

Proceedings Volume 13492, 134920Z (2024) https://doi.org/10.1117/12.3047785

KEYWORDS: Semiconductor lasers, Fiber coupled lasers, Fiber lasers, Diffraction gratings, Wave equations, Laser applications

Read Abstract +

Brightness of single wavelength diode laser is limited to single chip and technology of beam space assembling. In order to improve the brightness of fiber coupled diode laser, two channels wavelength division multiplexing is employed to achieve power increased doubly but BPP (Beam Parameter Product) remained unchanged theoretically. According to Lang-Kobayashi rate equation and Lamb laser equation with external cavity feedback and coupled wave theory, method of spectral locking and Bragg diffraction has been established to support our optical and mechanical design. Laser operated at 976.5nm center wavelength is diffracting and 975.5nm center wavelength is transmitting through beam combing VBG, the spectrum of sub beam is locked to 0.3nm (FWHM), the combing spectrum is 976.5nm±1nm. The diffraction and transmitting efficiency are about 80%, 96% respectively. The power of beam combing can reached at about 800W, and the BPP is less than 15mm·mrad, which indicates that could be coupled to 200μm core diameter fiber, NA (Numerical Aperture) would be less than 0.15. The results could be benefit for high brightness pump source of fiber laser or direct LD (Laser Diode) applications.

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