Multi-wavelength semiconductor comb lasers
AssigneeHewlett Packard Enterprise Development LP
InventorsGeza Kurczveil, Di Liang, Raymond G. Beausoleil
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Abstract
Examples disclosed herein relate to multi-wavelength semiconductor comb lasers. In some examples disclosed herein, a multi-wavelength semiconductor comb laser may include a waveguide included in an upper silicon layer of a silicon-on-insulator (SOI) substrate. The comb laser may include a quantum dot (QD) active gain region above the SOI substrate defining an active section in a laser cavity of the comb laser and a dispersion tuning section included in the laser cavity to tune total cavity dispersion of the comb laser.
Claims20
A multi-wavelength semiconductor comb laser, comprising:
- a silicon-on-insulator (SOI) substrate;
- a waveguide included in an upper silicon layer of the SOI substrate;
- a quantum dot (QD) active gain region above the SOI substrate defining an active section in a laser cavity of the comb laser;
- and
- a dispersion tuning section to tune total cavity dispersion of the comb laser.
A multi-wavelength semiconductor comb laser, comprising:
- a waveguide included in an upper silicon layer of a silicon on insulator (SOI) substrate;
- a first mirror and a second mirror at opposite ends of the comb laser defining a laser cavity along a length of the comb laser;
- a quantum dot (QD) III-V layer above the SOI substrate defining an active section in the laser cavity;
- and
- a dispersion tuning section included in the active section of the laser cavity to tune total cavity dispersion of the comb laser.
A multi-wavelength semiconductor comb laser, comprising:
- a silicon-on-insulator (SOI) substrate;
- a first waveguide included in an upper silicon layer of the SOI substrate;
- a quantum dot (QD) active gain region above the first waveguide defining an active section in a laser cavity of the comb laser;
- a dispersion tuning section included in the laser cavity to tune total cavity dispersion of the comb laser, the first waveguide, QD active gain region, and dispersion tuning section forming a ring;
- and
- a second waveguide to couple light into and out of the ring.
Dependencies are inferred from the claim text.