Maqola

8 W continuous wave front-facet power from broad-waveguide Al-free 980 nm diode lasers

L. J. MawstReed Center for Photonics, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706-1691Arnab BhattacharyaReed Center for Photonics, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706-1691J. LopezReed Center for Photonics, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706-1691D. BotezReed Center for Photonics, University of Wisconsin-Madison, 1415 Engineering Drive, Madison, Wisconsin 53706-1691D.Z. GarbuzovDavid Sarnoff Research Center, 201 Washington Road, Princeton, New Jersey 08543L. DeMarcoDavid Sarnoff Research Center, 201 Washington Road, Princeton, New Jersey 08543J.C. ConnollyDavid Sarnoff Research Center, 201 Washington Road, Princeton, New Jersey 08543M. JansenLaser Group, Coherent Inc., 2180 West 190th Street, Torrance, California 90504F. FangLaser Group, Coherent Inc., 2180 West 190th Street, Torrance, California 90504R.F. NabievLaser Group, Coherent Inc., 2180 West 190th Street, Torrance, California 90504

1996en

ABI

Annotatsiya

Al-free 980 nm InGaAs/InGaAsP/InGaP laser structures grown by low-pressure metalorganic chemical vapor deposition (LP-MOCVD) have been optimized for high cw output power by incorporating a broad waveguide design. Increasing the optical-confinement layer total thickness from 0.2 to 1.0 μm decreases the internal loss fivefold to 1.0–1.5 cm−1, and doubles the transverse spot size to 0.6 μm (full width half-maximum). Consequently, 4-mm long, 100-μm-aperture devices emit up to 8.1 W front-facet cw power. cw power conversion efficiencies as high as 59% are obtained from 0.5-mm long devices. Catastrophic-optical-mirror-damage (COMD) power-density levels reach 15.0–15.5 MW/cm2, and are found similar to those for InGaAs/AlGaAs facet-coated diode lasers.

Hali tarjima qilinmagan

Identifikatorlar

DOI: 10.1063/1.117995

Iqtiboslar va manbalar

2 ta iqtibos0 ta foydalanilgan manba

Koʻrsatkichlar — AkademScholar