Low-drift-rate external cavity diode laser
Abstract
We present the design, construction, and simulation of a simple, low-cost external cavity diode laser with a measured free-running frequency drift rate of 1.4(1) MHz/h at 852 nm. This performance is achieved in a compact aluminum structure held inside an airtight, temperature-controlled enclosure. The high thermal conductivity of the laser cavity and the stable temperature environment inside the enclosure minimize the time-varying, spatial temperature gradients across the laser cavity. We present thermal finite element method simulations, which quantify the effects of temperature gradients, and suggest that the drift rate is likely limited by the laser-diode and piezo-aging.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 01, 2023
- Source ID
- 10.1063/5.0079210
Entities
People
- Brian Bostwick
- Christian Schneider
- Eddie H. Chang
- Eric R Hudson
- Hunter Collaboration
- Jared Rivera
- Peter Yu
Organizations
- Army Research Office
- University of California
- W. M. Keck Foundation