METHOD AND SYSTEM FOR HYBRID INTEGRATION OF A TUNABLE LASER AND A PHASE MODULATOR
First Claim
1. A tunable pulsed laser comprising:
- a substrate comprising a silicon material;
a gain medium coupled to the substrate, wherein the gain medium includes a compound semiconductor material;
an optical modulator optically coupled to the gain medium;
a phase modulator optically coupled to the optical modulator;
a waveguide disposed in the substrate and optically coupled to the gain medium;
a first wavelength selective element characterized by a first reflectance spectrum and disposed in the substrate;
a second wavelength selective element characterized by a second reflectance spectrum and disposed in the substrate;
an optical coupler disposed in the substrate and joining the first wavelength selective element, the second wavelength selective element, and the waveguide; and
an output mirror.
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Accused Products
Abstract
A tunable laser includes a substrate comprising a silicon material and a gain medium coupled to the substrate. The gain medium includes a compound semiconductor material. The tunable laser also includes an optical modulator optically coupled to the gain medium, a phase modulator optically coupled to the optical modulator, and a waveguide disposed in the substrate and optically coupled to the gain medium. The tunable laser further includes a first wavelength selective element characterized by a first reflectance spectrum and disposed in the substrate, a second wavelength selective element characterized by a second reflectance spectrum and disposed in the substrate, an optical coupler disposed in the substrate and joining the first wavelength selective element, the second wavelength selective element, and the waveguide, and an output mirror.
58 Citations
20 Claims
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1. A tunable pulsed laser comprising:
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a substrate comprising a silicon material; a gain medium coupled to the substrate, wherein the gain medium includes a compound semiconductor material; an optical modulator optically coupled to the gain medium; a phase modulator optically coupled to the optical modulator; a waveguide disposed in the substrate and optically coupled to the gain medium; a first wavelength selective element characterized by a first reflectance spectrum and disposed in the substrate; a second wavelength selective element characterized by a second reflectance spectrum and disposed in the substrate; an optical coupler disposed in the substrate and joining the first wavelength selective element, the second wavelength selective element, and the waveguide; and an output mirror. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of operating a tunable pulsed laser, the method comprising:
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tuning a first modulated grating reflector, wherein the first modulated grating reflector is characterized by a first reflectance spectra including a first plurality of reflectance peaks; tuning a second modulated grating reflector, wherein the second modulated grating reflector is characterized by a second reflectance spectra including a second plurality of reflectance peaks; generating optical emission from a gain medium comprising a compound semiconductor material; waveguiding the optical emission to pass through an optical coupler; reflecting a portion of the optical emission having a spectral bandwidth defined by an overlap of one of the first plurality of reflectance peaks and one of the second plurality of reflectance peaks; amplifying the portion of the optical emission in the gain medium; transmitting a portion of the amplified optical emission through an output mirror; optically modulating the transmitted optical emission to form a pulsed optical output; and phase modulating the pulsed optical output. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification