Crosstalk analysis in high speed two-dimensional photodetector array directly coupled to multi-core fibers

Toshimasa Umezawa; Naokatsu Yamamoto

doi:10.1117/12.2520407

26 April 2019 Crosstalk analysis in high speed two-dimensional photodetector array directly coupled to multi-core fibers

Toshimasa Umezawa, Naokatsu Yamamoto

Author Affiliations +

Proceedings Volume 11031, Integrated Optics: Design, Devices, Systems, and Applications V; 1103110 (2019) https://doi.org/10.1117/12.2520407
Event: SPIE Optics + Optoelectronics, 2019, Prague, Czech Republic

Abstract

In this study, a high speed two-dimensional photodetector array (2D-PDA) was fabricated for the receipt of transmission signals from multi-core and few-mode fibers. With respect to the multi-core fiber (MCF) designs, the same square-shaped or triangular alignment arrangement as that used in a 19–32 MCF was applied to the 2D-PDA design layout. For a high-density integration with narrow gaps, the typical photodetector’s (PD) pixel size was set within the range of 10 m. The measured 3dB bandwidths were obtained from 20–26.5 GHz for all the pixels. No defects were observed in the pixels. With the constant gap between the pixels, the crosstalk due to the electromagnetic field from a neighboring pixel or wiring was measured using a lightwave component analyzer in the frequency range of 0.1–50 GHz. Under the light-ON condition for all the other pixels, with the exception of a center or corner pixel, the crosstalk at the center pixel was compared with that at the corner pixel. A difference of 1.2 dB at BER = 1 × 10-4 was found between them. A larger crosstalk was observed at the center pixel than at the outer pixel. A discussion on the origin of the crosstalk in the 2D-PDA is presented further in the manuscript, along with the electromagnetic (EM) simulation results.

Citation Download Citation

Toshimasa Umezawa and Naokatsu Yamamoto "Crosstalk analysis in high speed two-dimensional photodetector array directly coupled to multi-core fibers", Proc. SPIE 11031, Integrated Optics: Design, Devices, Systems, and Applications V, 1103110 (26 April 2019); https://doi.org/10.1117/12.2520407

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
6 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Optical fibers

Photodetectors

Personal digital assistants

Electromagnetism

Metals

Optical alignment

Light sources and illumination

Show All Keywords

Keywords/Phrases

Search In:

Publication Years