Semiconductor optical amplifier-based all-optical gates for high-speed optical processing

Abstract

Abstract-Semiconductor optical amplifiers are useful building blocks for all-optical gates as wavelength converters and OTDM demultiplexers. This paper reviews the progress from simple gates using cross-gain modulation and four-wave mixing to the integrated interferometric gates using cross-phase modulation. These gates are very efficient for high-speed signal processing and will open up interesting new areas, such as all-optical regeneration and high-speed all-optical logic functions.Index Terms-Add/drop multiplexer, optical gate, optical processing, semiconductor optical amplifier, wavelength converter.

Tunable true-time delay of a microwave photonic signal realized by cross gain modulation in a semiconductor waveguide

“…It is wellknown that XGM in an SOA can be used to perform different optical signal processing functions. [15][16][17][18] However, while the amplitude response of XGM has been extensively investigated, 19,20 the phase response only received little attention. Experimentally, we find very different phase responses for co-and counter-propagating configurations.…”

Simultaneous Optical Label Erasure and Insertion in a Single Wavelength Conversion Stage of Combined FSK/IM Modulated Signals

“…The IM performance demonstrates the regeneration effect due to the interferometric behavior of the SOA-MZI wavelength converter [9]. Therefore, a high level of scalability is possible by using the combined scheme.…”

All-optical Data Extraction Based on Optical Logic Gates

“…[4][5][6][7][8][9] . 지는 실제 시스템에 적용 가능한 기술들의 충분한 확보가 미 흡한 실정이다 [10][11][12][13] . 데이터 추출도 이러한 기술 중 하나로서 신호의 추가 및 제거에 반드시 필요하다.…”