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Vector π pulse soliton in coherent optical amplifiers
2007 Edition, May 1, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We found a novel type of vector soliton pulse in a medium with linear loss and nonlinear gain from the coherent resonant interaction of light with two-level atoms exhibiting a degenerate upper state.

Gain characteristics of coherent optical amplifiers using a Mach-Zehnder interferometer with Kerr media
1999 Edition, Volume 35, November 1, 1999 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This paper investigates the gain characteristics of coherent optical amplifiers that amplify only one of two quadrature phase components in an input signal light according to the phase of pump light. It is constructed around a Mach-Zehnder interferometer with Kerr media....

Coupling effects in saturable gain media with interfering coherent optical amplifier pump beams
1998 Edition, January 1, 1998 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

We investigate special coupling effects in an Er-doped optical fibre amplifier, of which the gain medium is optically pumped by two mutually coherent counterpropagating pump waves that interfere inside the amplifier. The result is a unique filtering...

Semiconductor Optical Amplifiers in Coherent Optical-OFDM Systems
2012 Edition, Volume 24, April 1, 2012 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Experimental results of using a semiconductor optical amplifier (SOA) for amplification of a coherent optical-orthogonal frequency-division-multiplexing (CO-OFDM) transmission system are presented. The impact of the SOA nonlinearities on the amplification of a 10.94-Gb/s...

Theory of linearly chirped quasi-parabolic ultrashort pulses from coherent nonlinear optical amplifiers
2010 Edition, September 1, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Optical pulse reshaping in nonlinear coherent two-level amplifiers may lead to time-compressed, quasi-parabolic intensity profiles with linear chirp. Nonlinear coherent amplifiers may generate pulses with spectral width larger than the linear...

Semiconductor laser optical amplifiers for multichannel coherent optical transmission
1989 Edition, Volume 7, December 1, 1989 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The application of semiconductor laser optical amplifiers in multichannel coherent optical transmission systems is investigated. The amplifiers considered ( lambda =1.3 mu m) exhibit a gain of 24 dB at a grain ripple <2 dB and a 3-dB bandwidth of about 4000...

Coherent reflectometry of optical fiber amplifiers
1997 Edition, Volume 9, September 1, 1997 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The reflectivity of commercially available erbium-doped fiber amplifiers (EDFAs) was measured with coherent optical frequency domain reflectometry (C-OFDR). Reflections at the output isolator as well as the distributed gain along the erbium-doped fiber could be observed thanks...

High-gain optical injection locking amplifier in phase-coherent optical frequency transmission
Volume PP - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Optical amplification, which is necessary for extending the distance of optical frequency transfer, has significant impact on the transmission performance. In this paper, we propose a high gain optical injection locking amplifier (OILA) with low phase noise based...

Coherent optical tapping using semiconductor optical amplifier
1990 Edition, Volume 2, August 1, 1990 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Semiconductor optical amplifiers are attractive not only as optical repeaters but also as functional devices, since carrier density modulation in amplifiers causes a nonlinear phenomenon. Utilizing the effect of the carrier density modulation on the semiconductor...

Coherently seeded optical parametric amplifier with 500 nJ short-wave infrared signal at 1 MHz
2017 Edition, May 1, 2017 - Optical Society (The) (OSA)

We introduce an optical parametric amplifier driven by a 3.5 μJ, 130 fs pulse at 1040 nm from a KMLabs Y-Fi HP. The optical parametric amplifier is seeded with white-light generated in a bulk YAG crystal. The net conversion efficiency into the short-wave...

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