High power CW (16W) and pulse (145W) laser diodes based on quantum well heterostructures.
We suggested and experimentally confirmed the effective method of internal optical loss reduction by high order mode suppression in a separate confinement quantum well laser heterostructure with asymmetric ultra thick waveguide. Manufacturing of InGaAs/GaAs/AlGaAs laser heterostructure with a 1.7 microm-thick asymmetric waveguide allowed attaining super low value of internal optical loss alphai=0.34 cm-1 preserving high efficiency and fundamental transverse mode operation. Record-high 16 W continuous wave (CW) and 145 W pulse room temperature front facet output optical power and 74% wallplug efficiency were attained in 100-microm-aperture 1.06-microm-emitting laser diodes with 3 mm cavity length.
Tarasov
Ilya S
IS
Ioffe Physico-Technical Institute, 26 Polytekhnicheskaya, St. Petersburg, Russian Federation.
Pikhtin
Nikita A
NA
Slipchenko
Sergey O
SO
Sokolova
Zinaida N
ZN
Vinokurov
Dmitry A
DA
Borschev
Kirill S
KS
Kapitonov
Vladimir A
VA
Khomylev
Maxim A
MA
Leshko
Andrey Yu
AY
Lyutetskiy
Andrey V
AV
Stankevich
Alexey L
AL
D007834:Lasers; D011789:Quantum Theory; D013696:Temperature