Efficient channel waveguide lasers based on thulium-doped double tungstates

Koop van Dalfsen; S. Aravazhi; D. Geskus; Sonia Maria García Blanco; Kerstin Worhoff; Markus Pollnau

Efficient channel waveguide lasers based on thulium-doped double tungstates

Koop van Dalfsen, S. Aravazhi, D. Geskus, Sonia Maria García Blanco, Kerstin Worhoff, Markus Pollnau

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

Abstract

Monoclinic double tungstates, KY(WO4)2 (= KYW), co-doped with Gd3+, Lu3+and various Tm3+ concentrations of 1.5 - 8.0% were grown onto pure KYW substrates by liquid-phase epitaxy. Ridge-type channel waveguides were microstructured 1.5 μm deep by Ar+-beam milling and overgrown with pure KYW. Lifetime measurements on the upper laser level (3F4) were performed for the different concentrations. Laser experiments on the 1.5% Tm3+-doped channel waveguides revealed slope efficiencies as high as 31.5% and output powers up to 149 mW. Through measurements of the laser relaxation-oscillation frequency, an upper value of ~0.11 dB/cm for the waveguide propagation loss at the laser wavelength was determined.

Original language	Undefined
Title of host publication	Proceedings of the 2011 Annual Symposium of the IEEE Photonics Benelux Chapter
Place of Publication	Ghent, Belgium
Publisher	Department of Information Technology, Ghent University
Pages	25-28
Number of pages	4
ISBN (Print)	978-90-76546-00-1
Publication status	Published - 1 Dec 2011
Event	16th Annual Symposium of the IEEE Photonics Benelux Chapter 2011 - Ghent, Belgium Duration: 1 Dec 2011 → 2 Dec 2011 Conference number: 16 http://www.photonics-benelux.org/symp11/

Publication series

Name
Publisher	Department of Information Technology, Ghent University

Conference

Conference	16th Annual Symposium of the IEEE Photonics Benelux Chapter 2011
Country/Territory	Belgium
City	Ghent
Period	1/12/11 → 2/12/11
Internet address	http://www.photonics-benelux.org/symp11/

Keywords

METIS-285002
EWI-21271
IOMS-APD: Active Photonic Devices
IR-79365

Access to Document

http://eprints.eemcs.utwente.nl/secure2/21271/01/IEEE_Benelux_2011_vanDalfsen_paper_V1.pdf

Cite this

van Dalfsen, K., Aravazhi, S., Geskus, D., García Blanco, S. M., Worhoff, K., & Pollnau, M. (2011). Efficient channel waveguide lasers based on thulium-doped double tungstates. In Proceedings of the 2011 Annual Symposium of the IEEE Photonics Benelux Chapter (pp. 25-28). Department of Information Technology, Ghent University. http://eprints.eemcs.utwente.nl/secure2/21271/01/IEEE_Benelux_2011_vanDalfsen_paper_V1.pdf

@inproceedings{f26c2e52008b41e79d97fb8942695c97,

title = "Efficient channel waveguide lasers based on thulium-doped double tungstates",

abstract = "Monoclinic double tungstates, KY(WO4)2 (= KYW), co-doped with Gd3+, Lu3+and various Tm3+ concentrations of 1.5 - 8.0% were grown onto pure KYW substrates by liquid-phase epitaxy. Ridge-type channel waveguides were microstructured 1.5 μm deep by Ar+-beam milling and overgrown with pure KYW. Lifetime measurements on the upper laser level (3F4) were performed for the different concentrations. Laser experiments on the 1.5% Tm3+-doped channel waveguides revealed slope efficiencies as high as 31.5% and output powers up to 149 mW. Through measurements of the laser relaxation-oscillation frequency, an upper value of ~0.11 dB/cm for the waveguide propagation loss at the laser wavelength was determined.",

keywords = "METIS-285002, EWI-21271, IOMS-APD: Active Photonic Devices, IR-79365",

author = "{van Dalfsen}, Koop and S. Aravazhi and D. Geskus and {Garc{\'i}a Blanco}, {Sonia Maria} and Kerstin Worhoff and Markus Pollnau",

year = "2011",

month = dec,

day = "1",

language = "Undefined",

isbn = "978-90-76546-00-1",

publisher = "Department of Information Technology, Ghent University",

pages = "25--28",

booktitle = "Proceedings of the 2011 Annual Symposium of the IEEE Photonics Benelux Chapter",

note = "null ; Conference date: 01-12-2011 Through 02-12-2011",

url = "http://www.photonics-benelux.org/symp11/",

}

van Dalfsen, K, Aravazhi, S, Geskus, D, García Blanco, SM, Worhoff, K & Pollnau, M 2011, Efficient channel waveguide lasers based on thulium-doped double tungstates. in Proceedings of the 2011 Annual Symposium of the IEEE Photonics Benelux Chapter. Department of Information Technology, Ghent University, Ghent, Belgium, pp. 25-28, 16th Annual Symposium of the IEEE Photonics Benelux Chapter 2011, Ghent, Belgium, 1/12/11. <http://eprints.eemcs.utwente.nl/secure2/21271/01/IEEE_Benelux_2011_vanDalfsen_paper_V1.pdf>

Efficient channel waveguide lasers based on thulium-doped double tungstates. / van Dalfsen, Koop; Aravazhi, S.; Geskus, D. et al.

Proceedings of the 2011 Annual Symposium of the IEEE Photonics Benelux Chapter. Ghent, Belgium : Department of Information Technology, Ghent University, 2011. p. 25-28.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

TY - GEN

T1 - Efficient channel waveguide lasers based on thulium-doped double tungstates

AU - van Dalfsen, Koop

AU - Aravazhi, S.

AU - Geskus, D.

AU - García Blanco, Sonia Maria

AU - Worhoff, Kerstin

AU - Pollnau, Markus

N1 - Conference code: 16

PY - 2011/12/1

Y1 - 2011/12/1

N2 - Monoclinic double tungstates, KY(WO4)2 (= KYW), co-doped with Gd3+, Lu3+and various Tm3+ concentrations of 1.5 - 8.0% were grown onto pure KYW substrates by liquid-phase epitaxy. Ridge-type channel waveguides were microstructured 1.5 μm deep by Ar+-beam milling and overgrown with pure KYW. Lifetime measurements on the upper laser level (3F4) were performed for the different concentrations. Laser experiments on the 1.5% Tm3+-doped channel waveguides revealed slope efficiencies as high as 31.5% and output powers up to 149 mW. Through measurements of the laser relaxation-oscillation frequency, an upper value of ~0.11 dB/cm for the waveguide propagation loss at the laser wavelength was determined.

AB - Monoclinic double tungstates, KY(WO4)2 (= KYW), co-doped with Gd3+, Lu3+and various Tm3+ concentrations of 1.5 - 8.0% were grown onto pure KYW substrates by liquid-phase epitaxy. Ridge-type channel waveguides were microstructured 1.5 μm deep by Ar+-beam milling and overgrown with pure KYW. Lifetime measurements on the upper laser level (3F4) were performed for the different concentrations. Laser experiments on the 1.5% Tm3+-doped channel waveguides revealed slope efficiencies as high as 31.5% and output powers up to 149 mW. Through measurements of the laser relaxation-oscillation frequency, an upper value of ~0.11 dB/cm for the waveguide propagation loss at the laser wavelength was determined.

KW - METIS-285002

KW - EWI-21271

KW - IOMS-APD: Active Photonic Devices

KW - IR-79365

M3 - Conference contribution

SN - 978-90-76546-00-1

SP - 25

EP - 28

BT - Proceedings of the 2011 Annual Symposium of the IEEE Photonics Benelux Chapter

PB - Department of Information Technology, Ghent University

CY - Ghent, Belgium

Y2 - 1 December 2011 through 2 December 2011

ER -