InP-based optically pumped VECSEL operating CW at 1550 nm

• We present a vertical external-cavity surface-emitting laser operating at 1550 run. The laser comprises an InGaAsP-based gain element, with a resonant periodic gain structure on top of a distributed Bragg reflector, and a high reflectivity spherical mirror as the external reflector. Optical pumping is achieved using a 1250-nm fiber Raman laser. A maximum continuous output power of 70 mW was obtained under multitransverse mode operation at 233 K. Under single-mode operation, we obtained a maximum power of 60 mW with a beam quality factor M-2 less than 1.1.

Ämnesord

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Nyckelord

external cavity

high-power laser

InGaAsP

InP

optical pumping

quantum well (QW)

semiconductor laser

surface-emitting laser

vertical cavity

vertical external-cavity surface-emitting laser (VECSEL)

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)