IEICE Technical Report

Online edition: ISSN 2432-6380

Optical Communication Systems

Workshop Date : 2026-02-19 - 2026-02-20 / Issue Date : 2026-02-12

OCS2025-60
[Invited Talk] Technical Trend and the Latest Status of Standardization of Space Optical Communication
Tomohiro Araki
pp. 1 - 4

OCS2025-61
[Invited Talk] Stress Distribution Analysis in Multi-Core Fibers
Gustavo Ocampo, Kunimasa Saitoh (Hokudai)
pp. 5 - 10

OCS2025-62
Proposal of a Cladding Shape Approximation Model for Multi-Core Fibers Using the Lamé curve
Shota Kajikawa, Takuya Oda, Katsuhiro Takenaga, Kentaro Ichii (Fujikura)
pp. 11 - 14

OCS2025-63
Miniaturization of 1x2 and 1x4 Branched Multimode Polymer Optical Waveguide for MUX Device in SWDM Links
Koki Atsumi, Takaaki Ishigure (Keio Univ.)
pp. 15 - 20

OCS2025-64
Low Wavelength Dependent Polymer Waveguide type Multiplexer for MDM Link
Takumi Kanai, Takaaki Ishigure (Keio Univ.)
pp. 21 - 26

OCS2025-65
High-Dynamic-Range Crosstalk Measurement in Multi-Core Fibers Using a Broadband Optical Source
Ryota Kaji, Takuya Oda, Katsuhiro Takenaga, Kentaro Ichii (Fujikura Ltd.)
pp. 27 - 30

OCS2025-66
Estimation of Differential Group Delay and Pulse Width for Bent and Twisted Two-Core Multicore Fibers Based on Perturbation Theory
Takeshi Sugimori (FITEC), Shigehiro Takasaka, Ryuichi Sugizaki, Masanori Takahashi (Furukawa Electric)
pp. 31 - 36

OCS2025-67
Application of graphene-doped polymer optical waveguides to wavelength convertor
Ken Kuboyama (Keio Univ.), Naoki Yamaguchi, Shinji Yamashita, Sze Yum Set (RCAST), Takaaki Ishigure (Keio Univ.)
pp. 37 - 42

OCS2025-68
Fabrication of ferro-electric liquid crystal race-track Si micro-ring resonators
Makoto Taniguchi, Hideto Kinoshita, Yuki Shimamura, Taishi Ishihara, Sayaka Seki, Yoshiki Hayama, Katsumi Nakatsuhara (KAIT)
pp. 43 - 48

OCS2025-69
Overcoming bandwidth and coherence limit of FMCW LiDAR by using swept optical frequency comb and phase noise compensation
Takahiro Nagata, Yuto Kusaka (Shimane Univ.), Chao Zhang (Kogakuin Univ./RCAST), Fumihiko Ito (Shimane Univ.), Shingo Ohno, Atsushi Nakamura, Kunihiro Toge (NTT Inc.)
pp. 49 - 53

OCS2025-70
Optical Link Characteristics of Energy-Efficient 8-Channel VCSEL-Based Optical Transceiver for AI/ML Systems
Sho Yoneyama, Wataru Yoshida, Kazuya Nagashima, Kensho Nishizaki, Hideyuki Nasu (Furukawa Electric Co., Ltd.)
pp. 54 - 57

OCS2025-71
Comparison of Nonlinear Characteristics of Gain Fibers in Bidirectionally-Pumped Lumped Raman Amplifier
Shun Okada, Tomoyuki Kato, Hidenobu Muranaka, Hiroki Ooi, Yu Tanaka (1Finity), Norihiro Ohishi, Shigehiro Takasaka, Satoru Ichihara, Ryuichi Sugizaki, Toshio Kimura (Furukawa Electric), Takeshi Hoshida (1Finity)
pp. 58 - 61

Note: Each article is a technical report without peer review, and its polished version will be published elsewhere.

The Institute of Electronics, Information and Communication Engineers (IEICE), Japan