CHIP-BASED LASER RESONATOR DEVICE FOR HIGHLY COHERENT LASER GENERATION
First Claim
1. A highly-coherent chip-based laser generating system comprising:
- a disk resonator comprising a wedge structure fabricated from a silicon dioxide layer of a chip, the disk resonator operable to generate a highly-coherent laser from a low-coherence optical pump input provided at an optical power level as low as 60 microwatts.
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Abstract
A highly-coherent chip-based laser generating system includes a disk resonator incorporating a wedge structure fabricated from a silicon dioxide layer of a chip. The disk resonator is operable to generate a highly-coherent laser from a low-coherence optical pump input provided at an optical power level as low as 60 μW. The disk resonator is fabricated with sub-micron cavity size control that allows generation of a highly-coherent laser using a controllable Stimulated Brillouin Scattering process that includes matching of a cavity free-spectral-range to a Brillouin shift frequency in silica. While providing several advantages due to fabrication on a chip, the highly-coherent laser produced by the disk resonator may feature a Schawlow-Townes noise level as low as 0.06 Hz2/Hz (measured with the coherent laser at a power level of about 400 μW) and a technical noise that is at least 30 dB lower than the low-coherence optical pump input.
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Citations
24 Claims
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1. A highly-coherent chip-based laser generating system comprising:
a disk resonator comprising a wedge structure fabricated from a silicon dioxide layer of a chip, the disk resonator operable to generate a highly-coherent laser from a low-coherence optical pump input provided at an optical power level as low as 60 microwatts. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A highly-coherent chip-based laser generating system comprising:
a disk resonator fabricated from a silicon substrate with a sub-micron cavity size control, the disk resonator operable to generate a highly-coherent laser using stimulated Brillouin scattering on a chip, the highly-coherent laser characterized in part, by a Schawlow-Townes noise level as low as 0.06 Hz2/Hz at a power level of about 400 μ
W.- View Dependent Claims (13, 14, 15, 16, 17)
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18. A method of manufacturing chip-based laser devices for one or more coherent laser generating systems, the method comprising:
fabricating a batch of disk resonators from a silicon substrate, the fabricating comprising precision control of a diameter dimension to obtain a substantial similar Q factor in each disk resonator. - View Dependent Claims (19, 20, 21, 22, 23, 24)
Specification