[PDF]
http://dx.doi.org/10.3952/lithjphys.50104
Open access article / Atviros prieigos straipsnis
Lith. J. Phys. 50, 27–34 (2010)
SIMULTANEOUS DUAL-WAVELENGTH
GENERATION FROM VERTICAL EXTERNAL-CAVITY SURFACE-EMITTING
SEMICONDUCTOR LASERS
S. Rantaa, T. Leinonena, A. Härkönena,
A. Laaksoa, Y. Morozovb, and M. Pessaa
aOptoelectronics Research Centre, Tampere University
of Technology, P.O. Box 692, FI-33101 Tampere, Finland
E-mail: sanna.ranta@tut.fi
bInstitute of Radio Engineering and Electronics
(Saratov Branch), Russian Academy of Sciences, Zelenaya 38,
410019 Saratov, Russia
Received 26 August 2009; revised 15
October 2010; accepted 19 March 2010
We demonstrate dual-wavelength
emission from optically pumped vertical-external-cavity
surface-emitting lasers (VECSELs) with two different gain mirror
designs. The first gain mirror design (
S1) generated an
optical output power of 0.39 W at
S
= 984 nm and 0.30 W at
L
= 1042 nm. A VECSEL using the second gain mirror design (S2)
generated a maximum optical output power of 0.75 W at
S
= 966 nm and 1.38 W at
L
= 1047 nm. VESCELs using either gain mirror design exhibited
self-pulsating behaviour in the high output power regime. In the
VECSEL using the
S1 gain mirror design, self-pulsation
started beyond the
S
output power of 140 mW and
L
output power of 115 mW. The corresponding output power limits in
the VECSEL using the
S2 gain mirror were 300 mW for both
wavelengths.
Keywords: vertical external-cavity
surface-emitting lasers, resonant periodic gain structure,
semiconductor lasers
PACS: 42.55.Px, 42.60.By
VIENALAIKIS DVIEJŲ BANGŲ
GENERAVIMAS IŠ PUSLAIDININKINIŲ VERTIKALIAI SPINDULIUOJANČIO
PAVIRŠIAUS LAZERIŲ SU IŠORINIU REZONATORIUMI
S. Rantaa, T. Leinonena, A. Härkönena,
A. Laaksoa, Y. Morozovb, M. Pessaa
aTamperės technologijos universiteto
Optoelektronikos mokslinių tyrimų centras, Tamperė, Suomija
b Rusijos MA Radijo inžinerijos ir elektronikos
instituto Saratovo skyrius, Saratovas, Rusija
Pademonstruotas dviejų bangų generavimas iš
optiškai kaupinamo vertikaliai spinduliuojančio paviršiaus lazerio
su išoriniu rezonatoriumi (angl. tokio lazerio trumpinys yra
VECSEL), naudojant dviejų skirtingų konstrukcijų stiprinančiuosius
veidrodžius. Pirmoji stiprinančiojo veidrodžio konstrukcija (
S1)
leido generuoti 0,39 W galios
S
= 984 nm bangos ilgio spinduliuotę ir 0,30 W galios
L
= 1042 nm spinduliuotę. VECSEL lazeris su antrąja stiprinančiojo
veidrodžio konstrukcija (S2) generavo maksimalią 0,75 W galios
spinduliuotę, kurios bangos ilgis
S
= 966 nm, ir 1,38 W galios spinduliuotę, kurios bangos ilgis
L
= 1047 nm. VECSEL lazeriai su abiejų konstrukcijų
stiprinančiaisiais veidrodžiais išsiskyrė savipulsacija esant
didelių išvadinių galių režimui. Lazeryje su
S1
konstrukcijos stiprinančiuoju veidrodžiu savipulsacijos
prasidėdavo bangos
S
galiai viršijus 140 mW, o bangos
L
– viršijus 115 mW. Lazeryje su
S2 konstrukcijos
stiprinančiuoju veidrodžiu savipulsacijos atsiradimo slenkstis
esant atitinkamiems abiejų bangų ilgiams buvo 300 mW.
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