title: Optically pumped DBR-free semiconductor disk lasers.
abstract: We report high power distributed Bragg reflector (DBR)-free semiconductor disk lasers. With active regions lifted off and bonded to various transparent heatspreaders, the high thermal impedance and narrow bandwidth of DBRs are mitigated. For a strained InGaAs multi-quantum-well sample bonded to a single-crystalline chemical-vapor deposited diamond, a maximum CW output power of 2.5 W and a record 78 nm tuning range centered at λ≈1160 nm was achieved. Laser operation using a total internal reflection geometry is also demonstrated. Furthermore, analysis for power scaling, based on thermal management, is presented.
authors.forename: Zhou
authors.initials: Z
authors.lastname: Yang
authors.forename: Alexander R
authors.initials: AR
authors.lastname: Albrecht
authors.forename: Jeffrey G
authors.initials: JG
authors.lastname: Cederberg
authors.forename: Mansoor
authors.initials: M
authors.lastname: Sheik-Bahae