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

Resolving the DMD-Crosstalk Trade-off in SDM through Graded-Index FMF

Komal Ojha
, Darpan Mishra
, Kumar Appaiah
, Deepak Jain

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

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 |∆n_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, ∆n = 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 (|∆n_eff| = 0.6 × 10^-3) 4-LP-GI-FMF.

Original language	English
Title of host publication	Next-Generation Optical Communication
Subtitle of host publication	Components, Sub-Systems, and Systems XIII
Editors	Guifang Li, Kazuhide Nakajima, Atul K. Srivastava
Publisher	SPIE
ISBN (Electronic)	9781510670488
DOIs	https://doi.org/10.1117/12.2692156
Publication status	Published - 2024
Event	Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII 2024 - San Francisco, United States Duration: 29 Jan 2024 → 31 Jan 2024

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	12894
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII 2024
Country/Territory	United States
City	San Francisco
Period	29/01/24 → 31/01/24

Keywords

Differential-mode-delay
Graded-Index Few-Mode Fiber
Space Division Multiplexing

Access to Document

10.1117/12.2692156

Cite this

Ojha, K., Mishra, D., Appaiah, K., & Jain, D. (2024). Resolving the DMD-Crosstalk Trade-off in SDM through Graded-Index FMF. In G. Li, K. Nakajima, & A. K. Srivastava (Eds.), Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII Article 128940C (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12894). SPIE. https://doi.org/10.1117/12.2692156

@inproceedings{42e047b4452f435f9364ece9a2fbe60f,

title = "Resolving the DMD-Crosstalk Trade-off in SDM through Graded-Index FMF",

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 |∆neff| = 0.6 × 10-3, maximum |DMD| = 5.4 ns/km, while minimum |Aeff| = 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, ∆n = 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{\textquoteright} knowledge, this is the lowest reported DMD value (≈ 5.4 ns/km) achieved in such a weakly-coupled (|∆neff| = 0.6 × 10-3) 4-LP-GI-FMF.",

keywords = "Differential-mode-delay, Graded-Index Few-Mode Fiber, Space Division Multiplexing",

author = "Komal Ojha and Darpan Mishra and Kumar Appaiah and Deepak Jain",

note = "Publisher Copyright: {\textcopyright} 2024 SPIE.; Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII 2024 ; Conference date: 29-01-2024 Through 31-01-2024",

year = "2024",

doi = "10.1117/12.2692156",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Guifang Li and Kazuhide Nakajima and Srivastava, \{Atul K.\}",

booktitle = "Next-Generation Optical Communication",

address = "United States",

}

Ojha, K, Mishra, D, Appaiah, K & Jain, D 2024, Resolving the DMD-Crosstalk Trade-off in SDM through Graded-Index FMF. in G Li, K Nakajima & AK Srivastava (eds), Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII., 128940C, Proceedings of SPIE - The International Society for Optical Engineering, vol. 12894, SPIE, Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII 2024, San Francisco, United States, 29/01/24. https://doi.org/10.1117/12.2692156

Resolving the DMD-Crosstalk Trade-off in SDM through Graded-Index FMF. / Ojha, Komal; Mishra, Darpan; Appaiah, Kumar et al.
Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII. ed. / Guifang Li; Kazuhide Nakajima; Atul K. Srivastava. SPIE, 2024. 128940C (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 12894).

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

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T1 - Resolving the DMD-Crosstalk Trade-off in SDM through Graded-Index FMF

AU - Ojha, Komal

AU - Mishra, Darpan

AU - Appaiah, Kumar

AU - Jain, Deepak

PY - 2024

Y1 - 2024

N2 - 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 |∆neff| = 0.6 × 10-3, maximum |DMD| = 5.4 ns/km, while minimum |Aeff| = 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, ∆n = 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 (|∆neff| = 0.6 × 10-3) 4-LP-GI-FMF.

AB - 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 |∆neff| = 0.6 × 10-3, maximum |DMD| = 5.4 ns/km, while minimum |Aeff| = 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, ∆n = 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 (|∆neff| = 0.6 × 10-3) 4-LP-GI-FMF.

KW - Differential-mode-delay

KW - Graded-Index Few-Mode Fiber

KW - Space Division Multiplexing

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DO - 10.1117/12.2692156

M3 - Conference proceeding

AN - SCOPUS:85212235762

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Next-Generation Optical Communication

A2 - Li, Guifang

A2 - Nakajima, Kazuhide

A2 - Srivastava, Atul K.

PB - SPIE

T2 - Next-Generation Optical Communication: Components, Sub-Systems, and Systems XIII 2024

Y2 - 29 January 2024 through 31 January 2024

ER -

Resolving the DMD-Crosstalk Trade-off in SDM through Graded-Index FMF

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Keywords

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