ULTRAFAST DYNAMICS IN FIELD-ENHANCED SATURABLE ABSORBERS

被引：70
作者：
KARIN, JR
HELKEY, RJ
DERICKSON, DJ
NAGARAJAN, R
ALLIN, DS
BOWERS, JE
THORNTON, RL
机构：
[1] Department of Electrical and Computer Engineering, University of California, Santa Barbara
来源：
APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 06期
关键词：
D O I：
10.1063/1.111058
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Absorption recovery dynamics of GaAs/AlGaAs field-enhanced waveguide saturable absorbers are studied by pump-probe differential transmission measurements. We compare the response of bulk and single quantum well absorbers at different reverse bias levels and pump powers, and find an ultrafast transient in the response, followed by a slower rise before the final recovery. The absorption fully recovers after a few picoseconds, which is an important result for mode-locked
引用
收藏
页码：676 / 678
页数：3
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