Schematic of the experimental set-up

Ultra Low Noise Miniature External Cavity Semiconductor Laser

OEwaves Article Appears in NATURE COMMUNICATIONS

Schematic of the experimental set-up

Schematic of the experimental set-up: Light from the pump laser (a semiconductor DFB laser) enters the whispering gallery mode resonator (WGMR) through the prism. Part of light is reflected back to the laser because of Rayleigh scattering in the resonator. The light exiting the prism is collimated and used for processing. Insets show power distribution in the resonator mode (a), a picture of the actual resonator (b) as well as a picture of the packaged laser (c).

SHARE:





Pasadena, California – July 9, 2015 – OEwaves, Inc. (“OEwaves” or “the Company”), an innovator of microwave photonic technologies and products, is pleased to announce the publication of "Ultra Low Noise Miniature External Cavity Semiconductor Laser” in the June issue of Nature Communications.  Based on the proprietary ultra-high quality factor (Q) Whispering Gallery Mode (WGM) micro-resonator technology, OEwaves reports on the realization of a heterogeneously integrated, chip-scale semiconductor laser featuring 30 Hz integral linewidth as well as sub-Hz instantaneous linewidth in the article.

Lasers with high spectral purity are key elements that determine the ultimate achievable sensitivity in advanced optical systems. Various applications, such as LIDAR, high resolution spectroscopy and optical sensing, quantum information science, atomic clocks, and spectrally pure photonic microwave generation require ultra-narrow linewidth lasers to optimize their performance. Beyond this, high data rate optical communications, including coherent communications, require lasers with low frequency and amplitude noise.

“This paper describes the unprecedented performance of a miniature semiconductor-based laser.  Such a laser will better support many existing applications, as well as enabling a variety of new applications not previously possible” said Lute Maleki, President and CEO of OEwaves.

OEwaves proprietary high-Q WGM crystalline micro-resonators are capable of phase/frequency noise/linewidth reduction for a wide range of laser wavelengths in the UV, visible, and near and mid-IR regions.

About OEwaves, Inc.
OEwaves, Inc. headquartered in Pasadena, California, USA, is a leader in innovative microwave photonic products and solutions. OEwaves develops and offers state-of-the-art technologies and products in support of radar, communications, and test and measurement systems for military and commercial markets. OEwaves was founded in 2000 and has maintained an Intellectual Property Portfolio of 75 cases, 26 of which were licensed via an exclusive agreement with the California Institute of Technology (Caltech) to establish a secure path in which to develop our initial core technologies. For additional information, please visit www.oewaves.com.

To read the published article, please follow the link below:
http://www.nature.com/ncomms/2015/150624/ncomms8371/full/ncomms8371.html

Microsoft
Development Category (English)728x90