Visible diode lasers with wide wavelength tunability and narrow spectral linewidth are of high importance in bio-photonics and metrology. Hybrid integrated diode lasers, using waveguide circuits for spectrally selective feedback, provide wide tunability and sub-100-Hz intrinsic linewidths in a robust chip format. So far, these lasers have only been realized at infrared wavelengths. Here we present the first operation of a hybrid integrated diode laser in the visible. The laser, formed by a diode amplifier which is hybrid integrated with a Si3N4 ring-resonator based feedback circuit, is tunable over 11 nm around 685 nm and delivers 5 mW output power.
|Publication status||Published - 3 Feb 2020|
|Event||SPIE Photonics West 2020 - George R. Moscone Convention Center, San Francisco, United States|
Duration: 1 Feb 2020 → 6 Feb 2020
|Conference||SPIE Photonics West 2020|
|Period||1/02/20 → 6/02/20|