Monolithically Lens-Integrated Photonic Device Arrays for Compact Optical Transceivers

被引：2

作者：

Shinoda, Kazunori ^{[1
]}

Adachi, Koichiro ^{[1
]}

Lee, Yong ^{[1
]}

Kitatani, Takeshi ^{[1
]}

Fukamachi, Toshihiko ^{[1
]}

Yamashita, Hiroki ^{[1
]}

Takemoto, Takashi ^{[1
]}

Yuki, Fumio ^{[1
]}

Sugawara, Toshiki ^{[1
]}

Tanaka, Shigehisa ^{[1
]}

Tsuji, Shinji ^{[1
]}

机构：

[1] Hitachi Ltd, Cent Res Lab, Kokubunji, Tokyo 1858601, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2013年 / 52卷 / 02期

关键词：

LASER-DIODE; OPERATION; ALIGNMENT;

D O I：

10.7567/JJAP.52.022701

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Monolithically lens-integrated surface-emitting distributed-feedback (DFB) laser arrays and p-i-n photodiode arrays were developed. A combination of dry etching and wet chemical etching was used to fabricate a monolithic InP lens. The lens profile within +/-10 mu m from the lens center was estimated to be parabolic shape, which is ideal for the collimation of a Gaussian beam. A fabricated lens-integrated surface-emitting DFB laser exhibited a circular, narrow far-field pattern with full-width at half maximums of 3.9 x 3.5 degrees. An efficient direct coupling of the lens-integrated DFB laser to a single-mode fiber with a coupling efficiency of -3 dB was confirmed. A four-channel lens-integrated surface-emitting laser array and a lens-integrated p-i-n photodiode array were used to fabricate a very compact 100 Gbps (25 Gbps x 4 channel) optical transceiver with 14 x 9 mm(2) footprint. (C) 2013 The Japan Society of Applied Physics

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页数：8

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