Efficient generation of 1.9  W yellow light by cascaded frequency doubling of a distributed Bragg reflector tapered diode

Anders Kragh Hansen, Mathias Christensen, Danny Noordegraaf, P Heist, E Papastathopoulos, V Loyo-Maldonado, Ole Bjarlin Jensen, Peter M. W. Skovgaard

Research output: Contribution to journalJournal article

395 Downloads (Pure)

Abstract

Watt-level yellow emitting lasers are interesting for medical applications, due to their high hemoglobin absorption, and for efficient detection of certain fluorophores. In this paper, we demonstrate a compact and robust diode-based laser system in the yellow spectral range. The system generates 1.9 W of single-frequency light at 562.4 nm by cascaded single-pass frequency doubling of the 1124.8 nm emission from a distributed Bragg reflector (DBR) tapered laser diode. The absence of a free-space cavity makes the system stable over a base-plate temperature range of 30 K. At the same time, the use of a laser diode enables the modulation of the pump wavelength by controlling the drive current. This is utilized to achieve a power modulation depth above 90% for the second harmonic light, with a rise time below 40  μs.
Original languageEnglish
JournalApplied Optics
Volume55
Issue number32
Pages (from-to)9270-9274
ISSN1559-128X
DOIs
Publication statusPublished - 2016

Bibliographical note

© 2016 Optical Society of America.]. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.

Fingerprint Dive into the research topics of 'Efficient generation of 1.9  W yellow light by cascaded frequency doubling of a distributed Bragg reflector tapered diode'. Together they form a unique fingerprint.

Cite this