The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A passive optical alignment based on a lens-integrated surface-emitting laser array and a single-mode fiber array was demonstrated. The proposed alignment technique enables better coupling efficiency than that of conventional DFB laser with active alignment.
High-temperature 25.8-Gbps clear-eye-opening of a 1.3-µm directly modulated InGaAlAs-MQW DFB laser with ACPM grating was demonstrated up to 120°C for the first time. Furthermore, the eye openings showed high mask margins of more than 19% from 25 to 110°C.
We proposed a perfectly facet-free surface-emitting 1.3-μm DFB laser toward cost-effective light source, and confirmed the same performances as the usual DFB lasers and an on-wafer measurement.
A simple and practical method for integrating a DFB laser and a silicon photonics platform without additional optical components such as lenses and an isolator is proposed. Optical-coupling and feedback-tolerance characteristics arc experimentally measured.
A lens-integrated surface-emitting laser array has been developed for an optical module compliant with Parallel Single-mode 4-lane Multi-Source Agreement (PSM4 MSA) for 100GbE applications. High-efficiency optical coupling to SMF with two-lens configuration and uncooled 25-Gb/s operation over all four-channels were demonstrated.
Uncooled InP-Mach-Zehnder modulator monolithically integrated with SOA was demonstrated for 10.7 Gbit/s 1600 ps/nm transmission at C-band wavelengths. Output power was obtained over +3.2 dBm at 0-85°C with +2 dBm optical input by using SOA.
In order to implement cell surgery in a chip-based system, we have been developing microneedle arrays capable of introducing desired biomolecules (nucleic acids, proteins, etc.) into living cells and the parallel extracting biomolecules expressed in the cells. Hollow silicon dioxide (SiO2) microneedles in array were successfully fabricated by using micromachining technique. It involves standard photolithography...
This paper describes the calibration and characterization of the Chino 900 nm standard radiation thermometer, IR-RST-90 W. The gain ratio, fixed-point calibrations, spectral responsivity, nonlinearity, size-of-source effect, distance effect, zero-offset stability and temperature drift were measured. Some problems were found for this thermometer regarding the out-of-band suppression, the size-of-source...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.