Title:
TEMPERATURE-LOCKED LOOP FOR OPTICAL ELEMENTS HAVING A TEMPERATURE-DEPENDENT RESPONSE
Document Type and Number:
WIPO Patent Application WO/2022/098396
Kind Code:
A8
Abstract:
Examples described herein generally relate to a temperature-locked loop for optical elements. In an example, a device includes a controller and a digital-to- analog converter (DAC). The controller includes a DC-controllable transimpedance stage (DCTS), a sheer circuit, and a processor. The DCTS is configured to be coupled to a photodiode. An input node of the sheer circuit is coupled to an output node of the DCTS. The processor has an input node coupled to an output node of the sheer circuit. The DAC has an input node coupled to an output node of the processor and is configured to be coupled to a heater. The processor is configured to control (i) the DCTS to reduce a DC component of a signal on the output node of the DCTS and (ii) an output voltage on the output node of the DAC, both based on a signal output by the sheer circuit.
Inventors:
CHIANG PING CHUAN (US)
RAJ MAYANK (US)
XIE CHUAN (US)
CHEN STANLEY Y (US)
KUMAR SANDEEP (US)
PATTANAGIRI SUKRUTH (US)
UPADHYAYA PARAG (US)
FRANS YOHAN (US)
RAJ MAYANK (US)
XIE CHUAN (US)
CHEN STANLEY Y (US)
KUMAR SANDEEP (US)
PATTANAGIRI SUKRUTH (US)
UPADHYAYA PARAG (US)
FRANS YOHAN (US)
Application Number:
PCT/US2021/038842
Publication Date:
May 11, 2023
Filing Date:
June 24, 2021
Export Citation:
Assignee:
XILINX INC (US)
International Classes:
H04B10/80; H04B10/69
Attorney, Agent or Firm:
TABOADA, Keith (US)
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