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US 2014/0270618 A1Published application
Wavelength tunable integrated optical subassembly based on polymer technology
AssigneeGigoptix, Inc.
InventorsRALUCA DINU, GUOMIN YU, CAILIN WEI, GIOVANNI DELROSSO, ERIC MILLER, AVISHAY KATZ, ANDREA BETTI-BERUTTO
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Abstract
An optical sub assembly can include a distributed feedback (DFB) tunable laser and an optical modulator. Wavelength selection and phase adjustment portions of the DFB laser, as well as an electro-optic (EO) modulator can be formed from polymer waveguides including hyperpolarizable chromophores disposed on a single substrate.
Claims54
An optical sub-assembly, comprising:
- a tunable laser, further comprising:
- an optical gain chip configured to output one or more of a plurality of modes of optical energy;
- and
- a thermo-optic (TO) tunable device configured to tune wavelengths of the modes of optical energy, and to select one of the plurality of modes for lasing and output as coherent light on a tunable laser output waveguide;
- and
- an electro-optic (EO) modulator operatively coupled to receive the coherent light from the tunable laser, to receive data, and to modulate the coherent light to output modulated light corresponding to the received data;
- wherein the TO tunable device and the EO modulator are formed on a common substrate as polymer waveguide devices.
4 more elements
A DFB laser modulator, comprising:
- an optical gain chip;
- and
- aligned to receive radiation from the optical gain chip:
- a polymer phase tuner;
- a polymer Bragg grating continuous with the polymer phase tuner;
- and
- a Mach-Zehnder polymer modulator continuous with the polymer Bragg grating and the polymer phase tuner.
4 more elements
A DFB laser modulator, comprising:
- a DFB gain chip;
- aligned to receive radiation from the DFB gain chip, a polymer ring-resonator phase tuner;
- and
- aligned to receive radiation from the DFB gain chip, a silicon optical amplifier (SOA);
- wherein the polymer ring resonator phase tuner is formed on a substrate separate from the SOA.
2 more elements
Dependencies are inferred from the claim text.