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Accession Number:
ADP007872
Title:
Coupled-Cavity Modelocking of Solid-State Lasers using Quantum Wells,
Corporate Author:
AT AND T BELL LABS HOLMDEL NJ
Report Date:
1992-05-22
Abstract:
The ultrafast physics of MQW samples have been studied extensively. We used this to passively mode-lock solid-state lasers with small gain cross section such as TiSapphire and NdYLF lasers shows the laser cavity design which is called coupled cavity resonant passive mode-locking RPM - resonant because of the near-resonant nonlinearity in the coupled cavity. The excitation level of the MQW reflector is high with an average intensity of 20 kWcm2 and a peak intensity of 20 MWcm2 at 250 MHz repetition rate. The mode-locking disappears at lower excitation levels. Using the RPM TiSapphire laser with its picosecond tunable pulses, we performed some pump-probe measurements on a separate piece of the same p-i-n MQW reflective modulator structure which mode-locks the TiSapphire laser. We measure a fast reflectivity modulation with a time constant determined by the pump and probe pulse width superimposed on a long time transient due to carrier recombination, heating and screening of the built-in field.
Supplementary Note:
This article is from 'Organization of the Optical Society of America Photonic Science Topical Meeting Series. Volume 7. Quantum Optoelectronics Held in Salt Lake City, Utah on 11-13 March 1991,' AD-A253 823, p230-233.
Pages:
0004
File Size:
0.00MB
