Session Index

S2. Optical Waveguides and Communications

Optical Waveguides and Communications II
Friday, Dec. 1, 2023  15:15-17:30
Presider: Prof. Jian-Jang Huang (National Taiwan University, Taiwan) Prof. Ying-Jung Chang (National Central University, Taiwan)
Room: 92171 (1F)
15:15 - 15:45
Manuscript ID.  0381
Paper No.  2023-FRI-S0202-I001
Invited Speaker:
Milton Feng
Cryogenic Oxide-VCSELs for 4K Optical Data Link
Milton Feng, Haonan Wu, Wenning Fu, Derek Chaw, University of Illinois at Urbana-Champaign (USA)

The rise of the Internet and AI has led to a spike in demand for computational resources and cloud services. High-speed and power-efficient superconducting processors based on single flux quantum (SFQ) technology at 4 K and fiber data transferring in quantum computing can be a viable solution. In this work, the high-speed optically packaged oxide-VCSELs operated down to 2.9 K are reported with the record speed of 54 Gbps NRZ and 100 Gbps PAM-4 data transmission. Furthermore, a superconducting processor for directly modulating an oxide-VCSEL coupled with OM4 fiber is demonstrated for 20 Gb/s NRZ for 4K full data link.

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15:45 - 16:00
Manuscript ID.  0335
Paper No.  2023-FRI-S0202-O001
Reinhard Geiss Low-loss lithium niobate integrated photonic devices fabricated on wafer-scale
Reinhard Geiss, Andre Steinbach, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany); Mohammadreza Younesi, Johannes Mühlenstädt, Thomas Käsebier, Institute of Applied Physics (Germany); Frank Setzpfandt, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany), Institute of Applied Physics (Germany); Thomas Siefke, Institute of Applied Physics (Germany); Thomas Pertsch, Falk Eilenberger, Fraunhofer Institute for Applied Optics and Precision Engineering (Germany), Institute of Applied Physics (Germany)

Lithium niobate is a popular material in integrated photonics due to its optical and electro-optic properties. It is used in low-loss waveguides for high-speed and high integration density photonic devices. This technology enables integration of various devices on a single chip for quantum technology and telecom applications. Here, we present waveguide devices such as modulators, micro-ring resonators and frequency converters having losses below 0.1 dB/cm. The challenges of wafer-scale fabrication will also be discussed.

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16:00 - 16:15 Award Candidate (Paper Competition)
Manuscript ID.  0457
Paper No.  2023-FRI-S0202-O002
Shou-Ming Chen Reflected Mirror integrated with Distributed-feedback laser for 3D photonic integration
Shou-Ming Chen, Chung-Wei Hsiao, Yong-Kuan Guo, Cheng-En Jiang, Bo-Ming Chen, Yang-Jeng Chen, Rih-You Chen, Chen-Yu Weng, Yi-Jen Chiu, National Sun Yat-Sen University (Taiwan)

Distributed-feedback laser integrated with slanted mirror had been demonstrated on Si photonics, enabling 3D photonic integration. 4mW output has been transferred into grating coupler.

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16:15 - 16:30 Award Candidate (Paper Competition)
Manuscript ID.  0437
Paper No.  2023-FRI-S0202-O003
Yu-Yun Tzeng Silicon photonics enabled multi-function integrated optic circuit with hybrid III-V photodiode for miniaturized fiber optic gyroscope
Yu-Yun Tzeng, Ting-Hsuan Kuo, Tzu-Jung Kuo, Sin-Yun Lu, Wei-Xuan Chen, Yen-Chieh Wang, Liang-Xuan Lan, Yung-Jr Hung, National Sun Yat-sen University (Taiwan)

We demonstrate a fiber optics gyroscope by employing a silicon photonics multi-function integrated optical circuit with hybrid integrated photodiode on top of grating coupler. This approach enables a high polarization extinction ratio of 51.3 dB when the light propagates from fiber coil to the photodiode, thus enables tactical-grade gyroscope performance.

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16:30 - 16:45 Award Candidate (Paper Competition)
Manuscript ID.  0218
Paper No.  2023-FRI-S0202-O004
Yu-Fang Lo Adiabaticity engineered silicon polarization independent directional coupler for the O-band
Yu-Fang Lo, Hung-Ching Chung, Shuo-Yen Tseng, National Cheng Kung University (Taiwan)

Applying multi-parameter adiabaticity engineering protocol (MPAE), we propose a broadband and polarization independent directional coupler on silicon-on-insulator (SOI) platform. The simulation shows that when the coupling length of the designed coupler is 273 μm, the coupling efficiency is higher than 99% for both TE and TM mode at a wavelength of 1310 nm. It also exhibits high wavelength tolerance of 200 nm and presents ultra-low IL and large ER within the optical range.

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16:45 - 17:00 Award Candidate (Paper Competition)
Manuscript ID.  0427
Paper No.  2023-FRI-S0202-O005
Yu-Hsien Lin Remote photovoltaic driven fiber optic gyroscope system
Yu-Hsien Lin, Rou-Shiuan Shen, Tzu-Jung Kuo, Wei-Xuan Chen, Yen-Chieh Wang, Yung-Jr Hung, National Sun Yat-sen University (Taiwan)

We demonstrate a silicon photonics-based fiber optics gyroscope for potential application in autonomous underwater vehicle, and is powered by a high-voltage photovoltaic cell through 980-nm laser emitted remotely.

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17:00 - 17:15 Award Candidate (Paper Competition)
Manuscript ID.  0543
Paper No.  2023-FRI-S0202-O006
Yun-Ting Wang Study of Small Core Chromium-doped Crystal Fiber Employing AI-Assisted Growth System
Yun-Ting Wang, National Chung Hsing University (Taiwan); Kai-Chieh Chang, National Taiwan University (Taiwan); Chia-Ling Tsai, Chun-Nien Liu, National Chung Hsing University (Taiwan); Sheng-Lung Huang, National Taiwan University (Taiwan); Wood-Hi Cheng, National Chung Hsing University (Taiwan)

A novel artificial intelligence assisted laser-heated pedestal growth system (AI-LHPG) for fabricating a 300-nm broadband single-mode Cr-doped crystalline core fibers (SMCDFs) are demonstrated. This SMCDF with 12-μm core diameter and a 20-cm fiber length shows the gross gain was 18.04-dB at 1550-nm wavelength.

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17:15 - 17:30
Manuscript ID.  0206
Paper No.  2023-FRI-S0202-O007
Yu-Wei Liu Silicon Photonics Apodized Vertical Grating Coupler For Efficient Mode Multiplexing Between Few Mode Fiber and SOI Chip
Shao-Ru Lin, Yu-Wei Liu, Yi-Jang Hsu, Yinchieh Lai, National Yang Ming Chiao Tung University (Taiwan)

We have designed a silicon photonics apodized vertical grating coupler that can multiplex three modes (one fundamental and two first orders) into a few mode fiber with reasonably equalized high efficiencies and small cross-talks.

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