Integrated Pockels Laser

Background

Frequency tuning of laser sources in Photonic integrated circuits (PIC) has been based on thermal as well as current changes. Thermal-optic tuning is slow (kHz) and current sweep techniques lead to unwanted intensity modulation. PICs still lack ultra-fast frequency modulation and switching, an essential attribute for the wide adoption of PICs.

Technology Overview

The Pockels laser couples an III-V gain section with lithium-niobate-on-insulator (LNOI) waveguide elements to form an integrated reconfigurable laser. A reflective semiconductor optical amplifier (RSOA) in the III-V gain section is edge-coupled with a spot-size converter to an external cavity on an LNOI chip. The LNOI waveguide takes the form of coupled racetrack resonators with an optimized curve profile. One resonator incorporates a micro heater for broad wavelength tuning, while the other includes driving electrodes for high-speed EO tuning. The electrode resonator can also include PPLN for an integrated second harmonic generation.

Benefits

The resulting integrated laser is able to frequency tune at a rate of 2.0 x 10^18 Hz/s. The laser has a bandwidth of 15.0 kHz and is able to wavelength tuning over 20 nm. Side mode suppression of 50 dB is achieved by the resonator coupling design and intensity modulation of 50 MHz has been demonstrated. Integrated PPLN allows for the generation of frequency-doubled light. 

Applications

Fully integrated optical arbitrary waveform generator (AWG) on-chip for communications and microwave photonics. LiDAR, atomic physics, atom-based quantum computing, AR/VR, sensing.

Opportunity

Seeing to license the technology exclusively in multiple fields of use.

Patents

  • Patent Pending

Seeking

  • Licensing

IP Status

  • Patent application submitted

Suggested Companies

NeoPhotonics Corportation, POET Technologies Inc, II-VI Inc., Infinera Corporation, Intel Corporation, Lumentum, Cisco Systems, Source Photonics, IBM, QCI, Xanadu, Microsoft, D-Wave Systems, IonQ, Caliopa, Effect Photonics, Colorchip Ltd 

Website

http://rochester.technologypublisher.com/technology/47478

Contact Information

TTO Home Page: http://rochester.technologypublisher.com

Name: Curtis Broadbent

Title: Licensing Manager

Department: UR Ventures

Email: curtis.broadbent@rochester.edu

Phone: 585.273.3250