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US 2020/0264377 A1Published application
Reconfigurable spectroscopy system
AssigneeRockley Photonics Limited
InventorsHooman ABEDIASL, Amit Singh NAGRA, Andrew George RICKMAN, Thomas Pierre SCHRANS, Pradeep SRINIVASAN, Andrea TRITA, Aaron John ZILKIE
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Abstract
A reconfigurable spectroscopy system comprises tunable lasers and wavelength lockers to lock to accurate reference wavelengths. Band combiners with differently optimized wavelength ranges multiplex the optical signal over the time domain, to emit a plurality of reference wavelengths for spectroscopy applications. The power requirements are greatly reduced by multiplexing over the time domain in time slots which do not affect sampling and receiving of the spectroscopy data.
Claims4
A device comprising:
- a plurality of tunable lasers generating a plurality of wavelengths;
- a plurality of wavelength lockers to reduce wavelength noise from the plurality of wavelengths;
- a plurality of band combiners each configured to combine a different wavelength range than other band combiners of the plurality of band combiners;
- a broadband combiner receiving outputs of the plurality of band combiners;
- a passive splitter configured to split an output of the broadband combiner;
- and
- a plurality of emitters to emit a plurality of reference wavelengths, each emitter receiving an output of the passive splitter.
4 more elements
Dependencies are inferred from the claim text.