Silicon photonics hybrid wavelength tunable laser diode using curved directional couplers with 145 nm tunable range

被引：0
|
作者：
Iwanaga, Kissho [1 ]
Tomimura, Yuga [1 ]
Kita, Tomohiro [1 ]
机构：
[1] Waseda Univ, Sch Adv Sci & Engn, 3-4-1 Okubo,Shinjuku Ku, Tokyo 1698555, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS | 2024年 / 63卷 / 03期
关键词：
silicon photonics; wavelength tunable laser diode; ring resonator; directional coupler;
D O I：
10.35848/1347-4065/ad25ae
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The expansion of the wavelength tunable range of wavelength tunable laser diodes is required in optical communication and sensing. Curved directional couplers (DCs) exhibit smaller power coupling efficiency fluctuations than conventional straight DCs, which reduces the wavelength sensitivity of double-ring wavelength filters. In this study, we fabricated a hybrid wavelength tunable laser diode comprising curved DCs with an improved design. This laser diode had a wavelength tunable range of 145.2 nm, which is the broadest tunable range as an external-cavity laser diode with silicon waveguides.
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页数：5
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