Year: 2023
Type: article
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.
Source: Review of Scientific Instruments
DOI: 10.1063/5.0079210
Authors: Eddie H. Chang, Jared Rivera, Brian Bostwick, Christian Schneider, Peter Yu, Eric R. Hudson, HUNTER Collaboration
Institution: University of California, Los Angeles
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4362554456