Our lab designs, fabricates, tests, and integrates photonic devices and systems in silicon nitride. These devices leverage the low optical loss of silicon nitride to realize novel functionality such as ultra-high-Q waveguide resonators, narrow linewidth on-chip laser sources, and photonic molecules. We demonstrate these devices operating at the system scale in applications ranging from atomic-referenced metrology, to low power, ultra-high-capacity optical communications for tomorrow’s energy efficient hyperscale data centers.

Diversity, Equity, and Inclusion

We adhere to the basic principle that members of our community should treat each other with respect and decency at all times, and that we should not alienate, diminish, or insult each other, personally or professionally, either in word or deed. Based on this principle, we believe that well-being, respect, inclusion, collaboration, and mentorship are moral imperatives that are vital to our teaching and research mission. As individuals and as a community we constantly work to avoid all forms of discrimination, including explicit, implicit, and/or unintended bias.


Lab move to Henley Hall! Our lab has moved from ESB 2320 to HH 1102.

Open Positions We are looking for exceptional postdoctoral scholars, graduate students, and undergraduate students to join our team. Contact Professor Blumenthal at danb@ece.ucsb.edu with a brief description of interests and CV attached.

Recent News

February 14, 2024

The first in-person meeting is held by the multi-university research group that will build quantum-based tools for space-based Earth sensing.

January 4, 2024

We publish the results of our ultra-low phase noise, high output power stimulated Brillouin laser that uses a photonic-molecule integrated resonator design to suppress the higher order Stokes modes.

August 23, 2023

Compact and robust quantum atomic sensors for timekeeping and inertial sensing

May 29, 2023

Ultra-cold atoms are generated in the lab using optical trapping and cooling. Here the authors implement a fiber-coupled photonic integrated circuit for a beam delivery to a three-dimensional magneto-optical trap where a million rubidium atoms are cooled near 200 μK.

May 1, 2023

Silicon Nitride Photonics: From Information to Atoms

April 10, 2023

Ultra-low loss quantum photonic circuits integrated with single quantum emitters

Funding sources
Funding sources
Academic and government collaborators
Academic and government collaborators
Industry Affiliates
Industry Affiliates