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首页> 外文期刊>IEE Proceedings. Part J >Fast tuning of 3.3 /spl mu/m InAsSb-InAsSbP diode lasers using nonlinear optical effects
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Fast tuning of 3.3 /spl mu/m InAsSb-InAsSbP diode lasers using nonlinear optical effects

机译:利用非线性光学效应快速调谐3.3 / spl mu / m InAsSb-InAsSbP二极管激光器

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摘要

InAsSb-InAsSbP double heterostructures diode lasers for the spectral region 3.3 /spl mu/m grown by liquid phase epitaxy have been investigated. Emission spectra, far-field patterns and wavelength tuning have been studied over a wide current range from threshold value I/sub th/ up to 3I/sub th/ at the temperature of liquid nitrogen. Current-controlled wavelength tuning has been obtained both towards shorter wavelengths (to 4.56 cm/sup -1/) and towards longer wavelengths (up to 0.9 cm/sup -1/) at a temperature T=77 K, at lasing generation that maintains single mode. Comparison of the emission properties of lasers driven by different types of current (short pulse current, sawtooth pulse current and quasi-CW regime) showed the same quantum-mechanical nature of current tuning. A theoretical model of this nonlinear optical phenomenon is proposed. The estimated times of current tuning, defined mainly by the photon lifetime in the cavity, are about 10/sup -9/-10/sup -12/ s.
机译:研究了InAsSb-InAsSbP双异质结构二极管激光器对液相外延生长的3.3 / spl mu / m光谱区的影响。在液氮温度下,在从阈值I / subth /到3I / subth /的较宽电流范围内,已经研究了发射光谱,远场模式和波长调谐。在温度T = 77 K的条件下,在较短的波长(至4.56 cm / sup -1 /)和较长的波长(至0.9 cm / sup -1 /)下均获得了电流控制的波长调谐,并且保持了激光发射单模式。比较由不同类型的电流(短脉冲电流,锯齿形脉冲电流和准CW态)驱动的激光器的发射特性,表明电流调谐具有相同的量子力学性质。提出了这种非线性光学现象的理论模型。电流调谐的估计时间主要由腔中的光子寿命决定,大约为10 / sup -9 / -10 / sup -12 / s。

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