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Power meter ratio method of stabilizing a resonant modulator

Patent ·
OSTI ID:1328676
;
Methods and systems for stabilizing a resonant modulator include receiving pre-modulation and post-modulation portions of a carrier signal, determining the average power from these portions, comparing an average input power to the average output power, and operating a heater coupled to the modulator based on the comparison. One system includes a pair of input structures, one or more processing elements, a comparator, and a control element. The input structures are configured to extract pre-modulation and post-modulation portions of a carrier signal. The processing elements are configured to determine average powers from the extracted portions. The comparator is configured to compare the average input power and the average output power. The control element operates a heater coupled to the modulator based on the comparison.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
9,467,233
Application Number:
14/462,416
OSTI ID:
1328676
Country of Publication:
United States
Language:
English

References (7)

Silicon Microring Modulator with Integrated Heater and Temperature Sensor for Thermal Control conference May 2010
Wavelength Locking and Thermally Stabilizing Microring Resonators Using Dithering Signals journal February 2014
Automated Wavelength Recovery for Microring Resonators conference May 2012
A high-speed, tunable silicon photonic ring modulator integrated with ultra-efficient active wavelength control journal January 2014
Control of integrated micro-resonator wavelength via balanced homodyne locking journal January 2014
Bit-Error-Rate Monitoring for Active Wavelength Control of Resonant Modulators journal January 2013
Thermal stabilization of a microring modulator using feedback control journal January 2012

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