Electrically tunable fiber-integrated Yb-doped laser covering 74 nm based on a fiber Bragg grating array

T. Tiess; M. Rothhardt; C. Chojetzki; M. Jäger; H. Bartelt

doi:10.1117/12.2077707

4 March 2015 Electrically tunable fiber-integrated Yb-doped laser covering 74 nm based on a fiber Bragg grating array

T. Tiess, M. Rothhardt, C. Chojetzki, M. Jäger, H. Bartelt

Proceedings Volume 9344, Fiber Lasers XII: Technology, Systems, and Applications; 93440G (2015) https://doi.org/10.1117/12.2077707
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

Fiber lasers provide the foundation to combine an excellent beam quality in single mode operation with a robust and highly efficient design. Based on fiber-integrated configurations, they are employed in many different applications ranging from industry over research to medical technology. However, there is lots of potential to approach even new fields of applications e.g. in spectroscopy based on tunable systems with an adjustable emission wavelength. We present a novel tuning concept for pulsed fiber-integrated laser systems using an array of fiber Bragg gratings (FBGs) as discrete spectral filter. Based on stacking many standard FBGs, the bandwidth and filter properties are easy to scale by increasing the number of gratings allowing huge tuning ranges as well as tailored tuning characteristics. In this work, we demonstrate the potential of this electrically controlled tuning concept. Using an Ytterbium (Yb)-doped fiber laser, we investigate the general tuning characteristics. With variable pulse durations in the nanosecond regime, we demonstrate high signal contrast (~45 dB), excellent wavelength stability and narrow linewidth (<15 GHz). In order to highlight the great spectral freedom, a tuning range of 74 nm in the Yb band is realized which, to the best of our knowledge, is the largest bandwidth reported based on a monolithic filter design.

Citation Download Citation

T. Tiess, M. Rothhardt, C. Chojetzki, M. Jäger, and H. Bartelt "Electrically tunable fiber-integrated Yb-doped laser covering 74 nm based on a fiber Bragg grating array", Proc. SPIE 9344, Fiber Lasers XII: Technology, Systems, and Applications, 93440G (4 March 2015); https://doi.org/10.1117/12.2077707

ACCESS THE FULL ARTICLE

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