Journal Paper

• Hameeda R Ibrahim, Ahmed H. Hassan, Xiaodong Gu, Moustafa Ahmed, Fumio Koyama. Enhanced High-Frequency Modulation of Single-mode 850 nm VCSELs via Dual Transverse-Cavity Integration, IEICE Electronics Express, Vol. 21, No. 4, pp. 1-4, Feb. 2024.

Patent

• FUMIO KOYAMA, Xiaodong Gu. 面発光レーザおよびその製造方法. Patent. Published. 国立大学法人東京工業大学. 2022/08/26. 特願2022-135175. 2024/03/07. 特開2024-031538. 2024.
• FUMIO KOYAMA, Xiaodong Gu. 面発光レーザおよびその製造方法. Patent. Published. 国立大学法人東京工業大学. 2022/08/26. 特願2022-135176. 2024/03/07. 特開2024-031539. 2024.
• FUMIO KOYAMA, Masanori Nakahama, Xiaodong Gu. 半導体レーザおよび光デバイス. Patent. Registered. 国立大学法人東京科学大学. 2020/09/04. 特願2020-148861. 2022/03/16. 特開2022-043541. 特許第7546898号. 2024/08/30 2024.

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