Ms. Lin Qin Profile

Lin Qin

at Shanxi Univ

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 | 11 April 2019 Paper

Optical readout of acoustic responses of an external-cavity diode laser

Junmin Wang, Yanhua Wang, Lin Qin, Huan Ren

Proceedings Volume 11028, 110281O (2019) https://doi.org/10.1117/12.2520714

KEYWORDS: Acoustics, Laser stabilization, Sensors, Semiconductor lasers, Laser systems engineering, Modulation, Laser development

Read Abstract +

Due to external cavity, the external-cavity diode laser (ECDL) is sensitive to the harsh environment. It can serve as a very convenient tool for measuring or comparing acoustic responses and analysis of acoustic insulation characteristics of materials and mechanical structure. Focused on the ECDL, improvement of the laser acoustic responses and suppression of the laser system drift are critical. But the acoustically-induced vibration coupled with complex disturbance will contribute to the frequency fluctuation, therefore it is difficult to investigate the dynamic response characteristics of laser frequency to acoustic signals separately. In order to decouple the acoustic response from environmental noise and to reduce system drift, a frequency stabilization system by virtue of grating feedback and current feedback is demonstrated with the a wide-bandwidth loop. After recording the system response, the amplitude-frequency characters are achieved through fast Fourier transform (FFT). After analyzing the correlation of the laser frequency fluctuation and the acoustic stimulant signal’s frequency, the acoustic dynamic response characteristics of the ECDL is depicted experimentally. By contrasting the acoustic response characteristics of the ECDL with or without the acoustic proofing case, the acoustic insulating effect could be mapped directly. The experimental results show that the acoustic proofing case can not be remained valid for all frequency bands effectively. It can also act as the experimental criteria for optimizing the design of laser mechanical structures and acoustic insulation systems. Furthermore, this optical system could be employed as a detector extending to acoustic sensing or acoustic precise measurement.

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