Resolving the DMD-crosstalk trade-off in SDM through graded-index FMF

Komal Ojha; Darpan Mishra; Kumar Appaiah; Deepak Jain

doi:10.1117/12.2692156

8 March 2024 Resolving the DMD-crosstalk trade-off in SDM through graded-index FMF

Komal Ojha, Darpan Mishra, Kumar Appaiah, Deepak Jain

Proceedings Volume 12894, Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII; 128940C (2024) https://doi.org/10.1117/12.2692156
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

This paper investigates the detailed impact of all three graded-index-fiber (GIF) parameters on the balance between DMD and crosstalk. We report an optimized 4-LP-mode GIF offering LP₀₁, LP₁₁, LP₂₁, and LP₀₂, with a minimum |Δn_eff| = 0.6 × 10⁻³, maximum |DMD| = 5.4 ns/km, while minimum |A_eff| = 80 μm2 and bending loss (BL) of the highest order mode is 0.005 dB/turn (much lower than 10 dB/turn) at a 10 mm bend radius, for core-radius a = 7 to 9 μm, Δn = 0.014 to 0.016, and α = 2 to 4. In this study, we successfully addressed the challenge of degeneracy between LP₂₁ and LP₀₂ in FM-GIF, which has been difficult to overcome. To the best of the authors’ knowledge, this is the lowest reported DMD value (≈ 5.4 ns/km) achieved in such a weakly-coupled (|Δn_eff| = 0.6 × 10⁻³) 4-LP-GI-FMF.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Komal Ojha, Darpan Mishra, Kumar Appaiah, and Deepak Jain "Resolving the DMD-crosstalk trade-off in SDM through graded-index FMF", Proc. SPIE 12894, Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII, 128940C (8 March 2024); https://doi.org/10.1117/12.2692156

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