ALL-OPTICAL SWITCHING OF PICOSECOND PULSES IN A GAAS QUANTUM-WELL WAVE-GUIDE COUPLER

被引：12

作者：

LIKAMWA, P ^{[1
]}

MILLER, A ^{[1
]}

PARK, CB ^{[1
]}

ROBERTS, JS ^{[1
]}

ROBSON, PN ^{[1
]}

机构：

[1] UNIV SHEFFIELD, DEPT ELECTR & ELECT ENGN, SHEFFIELD S1 3JD, S YORKSHIRE, ENGLAND

来源：

APPLIED PHYSICS LETTERS | 1990年 / 57卷 / 18期

关键词：

D O I：

10.1063/1.104035

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A time-resolved pump-probe configuration employing 10 ps laser pulses has been used to investigate the all-optical switching characteristics of zero-gap directional couplers containing a single quantum well. All-optical switching of the weak probe pulses from one port into the adjacent one was obtained at pump input pulse energies of 150 pJ. The switching takes place within the duration of the laser pump pulses. The recovery time of the device was found to be ∼1.5 ns which indicates that carrier diffusion plays a major role in the device switching speed.

引用

页码：1846 / 1848

页数：3

共 12 条

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