Injection locking of a low cost high power laser diode at 461 nm

Journal Article · Sun May 15 04:00:00 EDT 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4947462· OSTI ID:22598016

Pagett, C. J. H.; Celistrino Teixeira, R.; Shiozaki, R. F.; Hemmerling, M.; Courteille, Ph. W. ^[1]

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1. Instituto de Física de São Carlos, Universidade de São Paulo, 13560-970 São Carlos, SP (Brazil)

Stable laser sources at 461 nm are important for optical cooling of strontium atoms. In most existing experiments, this wavelength is obtained by frequency doubling infrared lasers, since blue laser diodes either have low power or large emission bandwidths. Here, we show that injecting less than 10 mW of monomode laser radiation into a blue multimode 500 mW high power laser diode is capable of slaving at least 50% of the power to the desired frequency. We verify the emission bandwidth reduction by saturation spectroscopy on a strontium gas cell and by direct beating of the slave with the master laser. We also demonstrate that the laser can efficiently be used within the Zeeman slower for optical cooling of a strontium atomic beam.

• OSTI ID: 22598016
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 5 Vol. 87; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ATOMIC BEAMS
ATOMS
COOLING
EMISSION
INJECTION
LASER RADIATION
LASERS
REDUCTION
SATURATION
STRONTIUM
WAVELENGTHS
ZEEMAN EFFECT