Optical sensing module
AssigneeChamartin Laboratories LLC
InventorsSean Merritt, Roozbeh Parsa, Suresh Chengalva, Cristiano Dalvi, Haydn Frederick Jones, Yi Zhang
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Abstract
An optical sensing module suitable for a gas phase sample, the optical sensing module comprising: a silicon or silicon nitride transmitter photonic integrated circuit (PIC), the transmitter PIC comprising: one or more lasers, each laser of the one or more lasers operating at a wavelength that is different from the wavelength of the others; one or more optical outputs for light originating from the one or more lasers, the optical output arranged such that the light interacts with the gas-phase sample; and one or more photodetectors configured to detect light after interaction with the gas-phase sample.
Claims19
An optical sensing module suitable for a gas phase sample, the optical sensing module comprising:
- a silicon or silicon nitride transmitter photonic integrated circuit (PIC), the transmitter PIC comprising:
- one or more lasers comprising at least one pump laser and at least one probe laser, each laser of the one or more lasers operating at a fixed wavelength corresponding to a respective one Raman resonance wavelength that is different from the fixed wavelength of the other lasers of the one or more lasers, wherein the at least one pump laser operates at a respective fixed wavelength that is shorter than a respective fixed wavelength of the least one probe laser;
- one or more optical outputs for light originating from the one or more lasers, the optical output arranged such that the light interacts with the gas phase sample;
- and
- multiple photodetectors configured to detect light after interaction with the gas phase sample.
An optical sensing module suitable for a fluid phase sample, the optical sensing module comprising:
- a silicon or silicon nitride transmitter photonic integrated circuit (PIC), the transmitter PIC comprising:
- one or more lasers comprising at least one probe laser and at least one pump laser, each laser of the one or more lasers operating at a wavelength corresponding to a respective one Raman resonance wavelength that is different from the wavelength of the others and wherein the at least one probe laser has a longer wavelength than the least one pump laser;
- one or more optical outputs for light originating from the one or more lasers, the optical output arranged such that the light interacts with the fluid phase sample;
- and
- multiple photodetectors configured to detect light after interaction with the fluid phase sample.
Dependencies are inferred from the claim text.