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Rapid Repetition Rate Fluctuation Measurement of Soliton Crystals in a Microresonator
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Tunable integrated variable bit-rate DPSK silicon receiver.

Ke Xu1, Zhenzhou Cheng, Chi Yan Wong

  • 1Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N. T., Hong Kong, China. kxu@ee.cuhk.edu.hk

Optics Letters
|November 21, 2012
PubMed
Summary
This summary is machine-generated.

This study presents a silicon receiver integrating a tunable microring resonator and germanium-on-silicon photodetector, achieving error-free operation across variable bit rates from 5 to 12.5 Gb/s.

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Area of Science:

  • Photonics
  • Integrated Optics
  • Silicon Photonics

Background:

  • Silicon photonics enables compact and efficient optical devices.
  • Photodetectors are crucial components in optical communication systems.
  • Tunable optical filters are essential for wavelength-selective signal processing.

Purpose of the Study:

  • To develop a variable bit-rate silicon receiver by integrating a wavelength-tunable microring resonator with a Ge-on-Si photodetector.
  • To demonstrate error-free operation of the integrated receiver at high data rates.
  • To characterize the performance of the tunable silicon receiver.

Main Methods:

  • Integration of a wavelength-tunable microring resonator with a monolithic Ge-on-Si photodetector.
  • Utilizing a TiN-based thermal heater for wavelength tuning.
  • Testing the receiver's performance at various bit rates (5 Gb/s to 12.5 Gb/s).

Main Results:

  • Achieved a responsivity of 0.7 A/W for the integrated silicon receiver.
  • Demonstrated error-free operation for bit rates ranging from 5 Gb/s to 12.5 Gb/s.
  • The TiN-based thermal heater enabled wavelength tuning of approximately one free spectral range.

Conclusions:

  • The integrated tunable silicon receiver offers a promising solution for variable bit-rate optical communication.
  • The demonstrated performance highlights the potential of silicon photonics for advanced optical transceivers.
  • Further development could lead to more sophisticated wavelength-agile silicon photonic systems.