Investigations of the coupling between core modes and cladding modes in a double-clad Yb-doped photonic crystal fiber

Carsten K. Nielsen; Erling Riis; Anders Petersson; Jes Broeng

doi:10.1117/12.528230

7 June 2004 Investigations of the coupling between core modes and cladding modes in a double-clad Yb-doped photonic crystal fiber

Carsten K. Nielsen, Erling Riis, Anders Petersson, Jes Broeng

Author Affiliations +

Proceedings Volume 5335, Fiber Lasers: Technology, Systems, and Applications; (2004) https://doi.org/10.1117/12.528230
Event: Lasers and Applications in Science and Engineering, 2004, San Jose, Ca, United States

Abstract

In this work a new model based on the work with new double-clad Yb-doped photonic crystal fibers is presented. The model describes the effect of a coupling between core modes and cladding modes, causing a loss of power out of the core. The model agrees well with an experimental observed asymmetry in the output powers from the two ends of a pumped fiber due to pump depletion and the core-cladding coupling. A method to estimate the core-cladding coupling is included. The magnitude of the coupling depends on the geometry of the fiber. If an asymmetry is introduced between the coupling for the two orthogonal linear polarization directions, an polarization creating mechanism is predicted. This feature is investigated for a fiber where the asymmetric loss has been implemented by manufacturing the fiber to have an asymmetric transverse geometry.

Citation Download Citation

Carsten K. Nielsen, Erling Riis, Anders Petersson, and Jes Broeng "Investigations of the coupling between core modes and cladding modes in a double-clad Yb-doped photonic crystal fiber", Proc. SPIE 5335, Fiber Lasers: Technology, Systems, and Applications, (7 June 2004); https://doi.org/10.1117/12.528230

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