Minoru Maeda

TL;DR: A laser gas analyzer includes a wavelength-variable laser having a wide wavelength variable width, a light split module configured to split an output light of the wavelength variable laser into a measurement light and a reference light, a first gas cell into which gases to be measured are introduced, and the measurement light is made to be incident as discussed by the authors.

TL;DR: In this paper, a novel fabrication process for monolithic multielement laser diodes and demonstrate the performance of a monolithically integrated passive waveguide laser as compared with a conventional laser fabricated under the same procedures.

TL;DR: In this article, the field stitching error of EB lithography caused by height difference between reference marks for calibration and the samples, was reduced to 5 nm by controlling the EB deflection voltage calibrated by the detection of the position of the marks on the samples.

TL;DR: An optical characteristic measuring apparatus as mentioned in this paper includes a light source section which sweeps wavelengths of a first input light and a second input light respectively, frequencies of the first and second input lights being different from each other and polarized states being perpendicular to each other, and outputting signals in accordance with optical powers of the interference lights respectively.