Dr. Xingyu Jia Profile

Dr. Xingyu Jia

at Xi'an Jiaotong 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 | 21 June 2019 Presentation + Paper

Suppression of nonlinear optical frequency sweeping in frequency-scanning interferometry for absolute distance measurement

Zhongwen Deng, Zhigang Liu, Xingyu Jia, Wen Deng

Proceedings Volume 11057, 1105707 (2019) https://doi.org/10.1117/12.2525243

KEYWORDS: Distance measurement, Interferometry, Interferometers

Read Abstract +

The precision of Frequency-scanning interferometer(FSI) for absolute distance measurement depends much on the tunability of its laser source. However, an external cavity laser diode (ECLD) exhibits nonlinearity during optical frequency sweep due to hysteresis inherent to the piezoelectric ceramic transducer (PZT) actuator in the ECDL. As a result, the interference signal become nonstationary, and then extracting the phase of the nonstationary interference signal may cause errors. To address this problem, we propose a new method based on the Prandtl–Ishlinskii (PI) model for suppressing nonlinearity of optical frequency sweeping. For the proposed FSI, the output transmission signal of a Fabry–Perot (F-P) cavity is used to obtain the optical frequency curve of the ECLD. By using the input voltage of the linear driving signal and the optical frequency of the ECLD as input and output of the model respectively, the hysteresis model can be built based on PI modelling method. Hence, the inverse of the rate-independent PI model is employed as a feedforward controller to compensate the nonlinearity of the optical frequency sweeping. In our case, instead of driving the ECLD with a linear signal, we implement a corrected nonlinear driving signal of the PZT to suppress the nonlinearity of the sweeping frequency. Experimental results demonstrate the effectiveness of our proposed method. Compared with an external witness He–Ne incremental interferometer, the proposed method greatly improves the performance of the FSI for absolute distance 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