Media.Player

Crystal Orientation Optimized Optical Frequency Shifter

Technology Benefits

Reduces power consumption by 8x Integrated polarization converter and frequency shifter Waveguide structure designed to null intrinsic material birefringence Can be integrated with optical components such as lasers

Technology Application

Highly efficient, compact frequency shifter and polarization converter

Detailed Technology Description

Optical frequency shifters have a wide variety of applications including heterodyne sensors, atomic interrogation, light detection and coherent optical communications. For these applications, the frequency shifters need to achieve near complete carrier suppression and high conversion efficiency. Current methods include electro-optic modulation and mechanically rotating half-plate frequency shifters, neither of these methods can attain high-speed frequency shifts and both consume large amounts of energy. There is a need for frequency shifters that can attain high-speed frequency shifts and achieve near complete carrier suppression with a high conversion efficiency. Researchers at the University of California, Davis have developed an X-cut Y-propagating crystal frequency shifter and polarization converter to reduce power consumption. The X-cut Y-propagating crystal orientation makes it possible to reduce power consumption by eight times. The Integrated polarization converter and frequency shifter also allows for high-speed frequency shifts. Finally, the waveguide structure nulls the intrinsic birefringence in the material, achieving near complete carrier suppression.

Others

Additional Technologies by these Inventors

• All-Optical Regenerators
• Optical Router Architecture
• Edge Router for Optical Label Switched Network
• Athermal Silicon Photonics With CMOS Compatibility
• Ultra-High Resolution Multi-Platform Heterodyne Optical Imaging
• Energy-Efficient All-Optical Nanophotonic Computing
• Silicon Based Chirped Grating Emitter for Uniform Power Emission
• Compact Vertical Optical Emitter and Interlayer Coupling
• Optical Interposers for Embedded Photonics Integration

Tech ID/UC Case

27333/2017-363-0

Related Cases

2017-363-0

*Abstract

Researchers at the University of California, Davis have developed an optimized frequency shifter and polarization converter for power reduction.

*Principal Investigator

Name: Burcu Ercan

Department:

Name: Hongbu Lu

Department:

Name: Chuan Qin

Department:

Name: S.J. Ben Yoo

Department:

Country/Region

USA