Efficient, green laser based on a blue-diode pumped rare-earth-doped fluoride crystal in an extremely short resonator

Michael Strotkamp; Thomas Schwarz; Bernd Jungbluth; Heinrich Faidel; Michael Leers

doi:10.1117/12.839998

17 February 2010 Efficient, green laser based on a blue-diode pumped rare-earth-doped fluoride crystal in an extremely short resonator

Michael Strotkamp, Thomas Schwarz, Bernd Jungbluth, Heinrich Faidel, Michael Leers

Author Affiliations +

Proceedings Volume 7578, Solid State Lasers XIX: Technology and Devices; 75780O (2010) https://doi.org/10.1117/12.839998
Event: SPIE LASE, 2010, San Francisco, California, United States

Abstract

The green cw laser presented in this work is realized by means of a Pr:YLF crystal emitting at 523 nm that is pumped by a blue GaN laser diode in an extremely short resonator. With a 500 mW-diode a laser has been achieved with M² = 1, a slope of 40 % and an output power of 140mW with an absorbed pump power of 410 mW which results in an electrooptical efficiency of 6.5 %. Despite the reduced overlap with a 1 W-diode the output power rises to 290 mW with an absorbed pump power of 850 mW and the M² increases only slightly. Based on these results a compact laser package has been accomplished using a monolithic micro optics for the beam shaping of the diode light and joining all components with a low-shrinkage adhesive on a common base plate. In a first test of the alignment strategy a laser with an output power of 92 mW has been achieved by means of the 500 mW pump power.

Citation Download Citation

Michael Strotkamp, Thomas Schwarz, Bernd Jungbluth, Heinrich Faidel, and Michael Leers "Efficient, green laser based on a blue-diode pumped rare-earth-doped fluoride crystal in an extremely short resonator", Proc. SPIE 7578, Solid State Lasers XIX: Technology and Devices, 75780O (17 February 2010); https://doi.org/10.1117/12.839998

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available