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Optically pumped semiconductor platelet lasers

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3 Author(s)
Roxlo, C.B. ; AT&T Bell Labs., Murrayhill, NJ, USA ; Putnam, R. ; Salour, M.

Tunable CW laser action of platelet semiconductors is reported in both mode-locked and unmode-locked configurations. The gain media are platelets of CdS, CdSe, CdSSe, and InGaAsP cooled to 85 K and longitudinally pumped by an argon-ion laser. Antireflection (AR) coating of the crystal face and external bandwidth restriction have been used to generate pulses as short as 4 ps. The pulses observed are chirped, with nontransform limited time-bandwidth products of about 1.7. The energy conversion efficiency is 20 percent into the TEM00mode, with output powers of over 10 mW from CdS.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:18 ,  Issue: 3 )