Highly nondegenerate four‐wave mixing and gain nonlinearity in a strained multiple‐quantum‐well optical amplifier

Highly nondegenerate four‐wave mixing was investigated in a 1.5 μm compressively strained multi‐quantum‐well semiconductor traveling‐wave optical amplifier at detuning frequencies up to 600 GHz. A gain nonlinearity with a characteristic relaxation time of 650 fs was determined from the data, and the nonlinear gain coefficient was estimated to be 4.3×10−23 m3. Dynamic carrier heating is believed to be the major source of nonlinear gain in this device at the wavelengths investigated.

[1]  K J Vahala,et al.  Linewidth and frequency jitter measurement of an erbium-doped fiber ring laser by using a loss-compensated, delayed self-heterodyne interferometer. , 1992, Optics letters.

[2]  Govind P. Agrawal,et al.  Population pulsations and nondegenerate four-wave mixing in semiconductor lasers and amplifiers , 1988 .

[3]  Dielectric grating induced by cavity standing wave as a new explanation of origin of nonlinear gain in semiconductor diode lasers , 1988 .

[4]  H. Yasaka,et al.  Measurement of gain saturation coefficients in strained-layer multiple quantum-well distributed feedback lasers , 1992 .

[5]  Gadi Eisenstein,et al.  Femtosecond gain dynamics in InGaAsP optical amplifiers , 1990 .

[6]  N. Dutta,et al.  Linewidth enhancement factor for InGaAs/InP strained quantum well lasers , 1990 .

[7]  Akihisa Tomita,et al.  Observation of highly nondegenerate four‐wave mixing (≳1 THz) in an InGaAsP multiple quantum well laser , 1991 .

[8]  U. Koren,et al.  FEMTOSECOND GAIN DYNAMICS AND SATURATION BEHAVIOR IN INGAASP MULTIPLE QUANTUM WELL OPTICAL AMPLIFIERS , 1990 .

[9]  U. Koren,et al.  Three-section semiconductor optical amplifier for monitoring of optical gain , 1992, IEEE Photonics Technology Letters.

[10]  M. Kakui,et al.  Observation of highly nondegenerate four-wave mixing in 1.5 mu m traveling-wave semiconductor optical amplifiers and estimation of nonlinear gain coefficient , 1992 .

[11]  Kerry J. Vahala,et al.  All fiber, low threshold, widely tunable single-frequency, erbium-doped fiber ring laser with a tandem fiber Fabry-Perot filter , 1991 .

[12]  John E. Bowers,et al.  Effect of strain on the resonant frequency and damping factor in InGaAs/InP multiple quantum well lasers , 1991 .

[13]  L. F. Tiemeijer,et al.  Effects of nonlinear gain on four‐wave mixing and asymmetric gain saturation in a semiconductor laser amplifier , 1991 .