Single-Mode Oxide-Confined VCSEL for Printers and Sensors

Otoma, Hiromi; Murakami, A.; Kuwata, Yusuke; Ueki, Nobuaki; Mukoyama, Naotaka; Kondo, Takashi; Sakamoto, Akira; Omori, Seiya; Nakayama, H.; Nakamura, Takeshi

doi:10.1109/estc.2006.279982

Cited by 7 publications

(1 citation statement)

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“…The top DBR deposited metal layer to form a metal aperture is a further improvement of the above structure, and the metal aperture is slightly larger than the oxidation aperture, the lateral range of the higher order die is larger and more easily blocked by the metal layer, the base die is mainly in the central region, and the blocking effect is weak. In 2006, Otoma et al fabricated an 850 nm single-mode VCSEL with an output power of 4.7 mW and an SMSR of 27 dB using a structure limited by metal aperture and oxide-confined [ 43 ].…”

Section: Mode Control Of Vcsel For the Chip-scale Atomic Magnetometermentioning

confidence: 99%

Application of VCSEL in Bio-Sensing Atomic Magnetometers

et al. 2022

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Recent years have seen rapid development of chip-scale atomic devices due to their great potential in the field of biomedical imaging, namely chip-scale atomic magnetometers that enable high resolution magnetocardiography (MCG) and magnetoencephalography (MEG). For atomic devices of this kind, vertical cavity surface emitting lasers (VCSELs) have become the most crucial components as integrated pumping sources, which are attracting growing interest. In this paper, the application of VCSELs in chip-scale atomic devices are reviewed, where VCSELs are integrated in various atomic bio-sensing devices with different operating environments. Secondly, the mode and polarization control of VCSELs in the specific applications are reviewed with their pros and cons discussed. In addition, various packaging of VCSEL based on different atomic devices in pursuit of miniaturization and precision measurement are reviewed and discussed. Finally, the VCSEL-based chip-scale atomic magnetometers utilized for cardiac and brain magnetometry are reviewed in detail. Nowadays, biosensors with chip integration, low power consumption, and high sensitivity are undergoing rapid industrialization, due to the growing market of medical instrumentation and portable health monitoring. It is promising that VCSEL-integrated chip-scale atomic biosensors as featured applications of this kind may experience extensive development in the near future.

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Section: Mode Control Of Vcsel For the Chip-scale Atomic Magnetometermentioning

confidence: 99%