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US 2019/0103719 A1Published application
Laser
AssigneeHewlett Packard Enterprise Development LP
InventorsGeza Kurczveil, Raymond G. Beausoleil, Di Liang, Chong Zhang, David Kielpinski
Life of this patent
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Abstract
A laser includes a traveling wave laser cavity with an active section, a pulse stretcher, and a pulse compressor. The pulse stretcher is coupled to the waveguide before the active section and the pulse compressor is coupled to the waveguide after the active section.
Claims20
A semiconductor laser, comprising:
- a traveling wave laser cavity ;
- an active section coupled to the waveguide, the active section comprising:
- a laser gain medium;
- and
- a saturatable absorber;
- a laser output coupled to the waveguide;
- a pulse stretcher embedded in the laser cavity;
- and
- a pulse compressor embedded in the laser cavity.
6 more elements
An optical transmitter, comprising:
- a semiconductor laser comprising:
- a traveling wave laser cavity having a direction of propagation and comprising a passive silicon waveguide;
- an active section coupled to the waveguide, the active section comprising a laser gain medium, and a saturatable absorber;
- a laser output waveguide coupled to the cavity waveguide to output a multi-wavelength laser signal;
- a pulse stretcher embedded in the cavity waveguide after the laser output and before active section, in the direction of propagation;
- and
- a pulse compressor embedded in the cavity waveguide after the active section and before the laser output, in the direction of propagation;
- a modulator coupled to the laser output to modulate an electrical signal onto the multi-wavelength laser signal;
- and
- an optical output to output the modulated multi-wavelength laser signal.
7 more elements
A method, comprising:
- propagating a laser pulse within a traveling wave laser cavity comprising a waveguide;
- stretching the laser pulse in the time domain to produce a stretched laser pulse having a lower peak power than the laser pulse;
- amplifying the stretched laser pulse in an active section of the traveling wave laser cavity;
- compressing the amplified laser pulse in the time domain to produce a compressed laser pulse having a higher peak power than the amplified stretched laser pulse;
- and
- outcoupling the compressed laser pulse to produce an output laser pulse.
3 more elements
Dependencies are inferred from the claim text.