Nemoto Keita
,
Kita Tomohiro
,
Yamada Hirohito
… We fabricated wavelength-tunable laser diodes with Si wire waveguide ring resonators as an external optical cavity. … About 44-nm-wavelength tuning operation, which covers the entire L-band of the optical communication wavelength range, was obtained. … The tunable laser diodes with narrow spectral linewidth are suitable as light sources for digital coherent optical transmission systems. …
Applied Physics Express 5(8), 082701-082701-3, 2012-08-25
The Japan Society of Applied Physics