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Your search keyword '"Koichiro Adachi"' showing total 2 results
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2 results on '"Koichiro Adachi"'

1. Cost-effective light-emission optical sub-assembly for datacenter networks

Author

Koichiro Adachi, K. Nakahara, A. Nakanishi, T. Suzuki, Kazuhiko Naoe, S. Tanaka, and K. R. Tamura

Subjects
Distributed feedback laser, business.industry, Computer science, Physics::Optics, 02 engineering and technology, Laser, Optical coupling, Semiconductor laser theory, law.invention, 020210 optoelectronics & photonics, Optics, law, Computer Science::Networking and Internet Architecture, 0202 electrical engineering, electronic engineering, information engineering, Optoelectronics, Point (geometry), Light emission, business, Tunable laser, Diode
Abstract

Technologies for creating cost-effective light-emission optical sub-assemblies (OSAs) are discussed from the point of view of laser diodes. A lens-integrated surface-emitting laser (LISEL), consisting of a DFB laser, integrated mirror, and integrated convex lens, has the potential to achieve light-emission OSAs. An OSA based on the LISEL is proposed, and the capabilities of direct and passively aligned optical coupling, isolator-free operation, non-hermetic packaging, and on-wafer testing are introduced.

Published
2017
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2. A 25-Gb/s 100-m multi-mode fiber optical link based on 1.3μm lens-integrated surface-emitting laser and CMOS receiver

Author

Koichiro Adachi, Hiroki Yamashita, Yong Lee, Takashi Takemoto, and Yasunobu Matsuoka

Subjects
Multi-mode optical fiber, Materials science, Laser diode, business.industry, Optical link, Laser, law.invention, Semiconductor laser theory, Lens (optics), Optics, CMOS, law, business, Sensitivity (electronics)
Abstract

A 1.3-μm wavelength optical link, which consists of a lens-integrated laser diode and a CMOS optical receiver, was developed. It achieves 25-Gb/s error-free 100-m multi-mode fiber transmission with sensitivity of −6.3-dBm OMA.

Published
2014
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