Dr. Zhiyu Feng Profile

Dr. Zhiyu Feng

at Guilin Univ Of Electronic Technology

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 | 27 March 2022 Paper

Linewidth characteristics of narrow linewidth lasers with high-sweeping linearity

Zhiyu Feng, Yu Cheng, Ming Chen, Libo Yuan, Litong Li, Sumei Huang, Jing Li

Proceedings Volume 12169, 121696Y (2022) https://doi.org/10.1117/12.2624890

KEYWORDS: Fiber lasers, Signal processing, Optical fibers, Laser applications

Read Abstract +

As a continuously tunable laser with high-sweeping linearity, narrow linewidth lasers have excellent coherence properties that make them indispensable for the improvement of the spatial resolution of optical frequency domain reflection (OFDR) technology. In order to investigate the linewidth characteristics of narrow linewidth lasers with high-sweep linearity, this paper reviews the measurement and calculation methods of linewidth. The theoretical analysis of the linewidth is also carried out, and a delayed self-heterodyne measurement system based on the non-equilibrium Mach-Zehnder (M-Z) interferometer structure is built. The experimental results show that the steady-state linewidth of the laser is 178 kHz, and the fluctuation range of the dynamic linewidth is 150-200 kHz. In order to balance the speed and accuracy of linewidth measurement, the linewidth values at receiver bandwidth of 10 kHz, 30 kHz and 100 kHz are analyzed. Analyze the linewidth spreading generated by the laser during continuous frequency tuning, compensate the deviation between the real value of linewidth and the measured value by controlling the step amount of the laser wavelength tuning to keep the output power stable and reduce the measurement error caused by the linewidth spreading. This study not only improves the knowledge of linewidth characteristics, but also have important practical significance for OFDR research.

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