Inexpensive External Cavity Diode Laser

Case ID:

This invention is a novel design on an external cavity diode laser that allows for significantly cheaper construction, as well as the possibility of new and more efficient optical designs.



External cavity diode lasers are lasers that are capable of producing amazing results in specifically tailored tasks. As the field of quantum computing grows, external cavity diode lasers are anticipated to take a leading role in providing scalable quantum communication solutions. Like most advanced optical devices, cost has proven to be a large limitation in enabling smaller research organizations and private companies from adopting the technology on a wider scale. By providing a novel design, we are able to replace expensive components within an external cavity diode laser with efficient substitutes, enabling a wider adoption of the technology.



  • Easy to fabricate
  • Inexpensive and compact
  • Single frequency operation


  • Consumer electronics
  • Atomic and molecular spectroscopy
  • Quantum communications

Status: issued U.S. patent #11,095,095

Patent Information:
Contact For More Information:
Richard Weite
Senior Licensing Manager, College of Optical Sciences
The University of Arizona
Lead Inventor(s):
Yushi Kaneda