Ultra-Narrow Linewidth Lasers

OEwaves breakthrough ultra-narrow linewidth laser module products are based on the self-injection locking of a semiconductor laser diode to our proprietary high quality factor (Q) WGM Crystalline Micro-Optical Resonators. These tiny optical WGM resonators enable OEwaves to produce small scale form factor ultra-low phase/frequency noise semiconductor lasers, suitable for volume manufacturability.


The small mass of the WGM resonator allows for low power, and robust thermal stabilization lasers that are insensitivity to vibration and shock.  The wide range of optical transparency of the resonator host material allows narrowing the linewidth of a suitable laser at any wavelength, UV to far IR, thus making this capability available in wavelength ranges not previously accessible with conventional techniques. OEwaves laser module products offer various optional features including extended thermal wavelength tuning range, wide bandwidth frequency modulation, USB or RS-232 control interface, and a variety of common optical interfaces.


With the availability of a super narrow linewidth (or long coherence length) laser source resistant to harsh environments at a low cost and in a small form factor, System Providers for coherent Doppler LIDAR, smart structures sensors, and spectroscopic sensors will greatly improve their system’s measurement range and precision while operating under stringent conditions.  


This is true for trace gas detectors and monitors, interferometric fiber optic sensor systems, and similar applications as well.  Such a laser source allows longer interferometer path length difference and lower phase/frequency noise to enable sensitive detection of minute changes in distance, pressure or acceleration, even under severe environments and without sacrificing system size and cost.  


These systems service various industries such as conventional and green energy, infrastructure and smart structures, security and defense, and spectroscopy and metrology, etc.  


In addition, with the capability to offer such performance and features in other wavelengths beyond near-infrared, academic researches, and bio-chemical and medical sensing applications will also benefit from this technology