Diode-pumped Cr-doped ZnMnSe and ZnMgSe lasers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F17%3A00316275" target="_blank" >RIV/68407700:21340/17:00316275 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2292196" target="_blank" >http://dx.doi.org/10.1117/12.2292196</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2292196" target="_blank" >10.1117/12.2292196</a>

Result language

angličtina

Original language name

Diode-pumped Cr-doped ZnMnSe and ZnMgSe lasers

Original language description

Chromium ions Cr2+ are known to have good fluorescence properties in the mid-infrared spectral region around the wavelength of 2.5 µm. The aim of this study was investigation of new laser crystal materials Zn0.95Mn0.05Se, Zn0.70Mn0.30Se, and Zn0.75Mg0.25Se doped by chromium ions and comparison of their characteristics. The spectroscopic parameters as absorption and fluorescence spectra were measured. The spontaneous emission spectra were in wavelength range from 2030 nm up to 2665 nm. The realized laser systems were pumped by a laser diode generating at the wavelength of 1.69 μm (pulse repetition rate 10 Hz, pulse width 2 ms). The longitudinal-pumped resonator was hemispherical with a output coupler radius of curvature 150 mm. The laser emission spectra were investigated and the highest intensity of emitted radiation was achieved at wavelengths 2451 nm, 2469 nm, and 2470 nm from Cr:Zn0.95Mn0.05Se, Cr:Zn0.70Mn0.30Se, and Cr:Zn0.75Mg0.25Se laser systems respectively. The input-output characteristics of laser systems were measured; the maximum output peak power 177 mW was obtained for Cr:Zn0.95Mn0.05Se laser system with slope efficiency of 6.3 % in respect to absorbed peak power. The output beam spatial structure was also studied and during measurements was stable. For the selection of the lasing wavelength, the single 1.5 mm thick silica plate was placed inside the optical resonator at the Brewster angle between the output coupler and laser active medium. This element provided the tuning wavelength range 2292–2593 nm, 2353–2540 nm, and 2424–2551 nm for Cr:Zn0.95Mn0.05Se, Cr:Zn0.70Mn0.30Se, and Cr:Zn0.75Mg0.25Se, respectively. The obtained spectral linewidth of the individual output radiation was ΔλFWWH ~ 10 nm.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/GA15-05360S" target="_blank" >GA15-05360S: Temperature influence on spectroscopic and lasing characteristics of solid-state materials covering spectral range from visible up to mid-infrared</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Photonics, Devices, and Systems VII

ISBN

978-1-5106-1702-5

ISSN

0277-786X

e-ISSN

—

Number of pages

8

Pages from-to

—

Publisher name

SPIE

Place of publication

Bellingham

Event location

Prague

Event date

Aug 28, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000425429900037